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megan
28th Feb 2022, 02:17
A close call? Maybe in different hands, or even an accident. Cessna 205 catastrophic engine failure while flying on an IFR flight plan from S36 (Seattle, WA) to KMYV (Sacramento, CA) Cruising at 9,000 feet. IO-470-S engine suddenly vibrated and then immediately exploded, stopping the propeller instantly. Glide and divert to KHIO (Hillsboro, OR) captured on a GoPro Hero. ATC audio partially from LiveATC.net. No word yet on cause of failure, photos at the end of the video show the damage.

https://www.youtube.com/watch?v=CEMlny_ExuU

Teddy Robinson
28th Feb 2022, 02:28
There are photos on the blancolirio channel, also on Youtube.
Catastrophic failure of cylinders 4 and 6, the entire aft end of the crankcase sheared off.

What caused that failure is of course, subject to further investigation.

TR

Piper.Classique
28th Feb 2022, 16:03
That looked really well judged and controlled. I'm certain I couldn't have done nearly as well. And clearing the runway, what's more. I'm seriously impressed by this guy's skill set.

India Four Two
28th Feb 2022, 19:22
Screen grabs from the end of the video:

https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/716x828/screen_shot_2022_02_28_at_1_14_16_pm_7382014c3aa3b97438102fb 7d8c6456850a4cc9d.png

https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/729x835/screen_shot_2022_02_28_at_1_14_34_pm_3d930c55751305843087875 d2ccc69ef04cbffd3.png

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/1285x829/screen_shot_2022_02_28_at_1_15_03_pm_44c83554db809e48d9e84eb 5bb39eac7adb7907d.png

https://cimg4.ibsrv.net/gimg/pprune.org-vbulletin/718x830/screen_shot_2022_02_28_at_1_16_09_pm_77c2e42dcf0dc3834ca5454 9b9942ee530c16732.png

https://cimg0.ibsrv.net/gimg/pprune.org-vbulletin/718x831/screen_shot_2022_02_28_at_1_15_39_pm_65bd4d0396889e87a635c3b 45ed5e67b26f04bca.png

It looks like only the rear cylinders were affected - conrod failure?

netstruggler
1st Mar 2022, 06:58
Screen grabs from the end of the video:

It looks like only the rear cylinders were affected - conrod failure?

If we're going to try and guess then my guess is crankshaft bearing failed, overheated and seized.

Jhieminga
1st Mar 2022, 12:04
An interesting failure, that's for sure. Nicely handled as well. The final approach looked quite flat to me but from the shadow I am guessing he didn't have any flaps out and carried a bit of extra speed.

RatherBeFlying
1st Mar 2022, 16:54
Flaps likely electric; so how much could the battery offer after transponder and turn coordinator had been draining for several minutes?

Plenty of extra speed yielding long float and ground run on a long runway. Better too fast than too slow.

Oh yes, in some large Cessna singles, extended flaps can block the doors.

Jhieminga
1st Mar 2022, 18:58
Good point, I forgot about the rear door, but I didn't spot one on the photo at the start of the video. He had 6600 feet available so I can't fault him for keeping the speed up.

Fitter2
2nd Mar 2022, 11:17
Anyone know if he was either a glider pilot, or ex (or current) military?

Whatever, I'd be happy to be a passenger in anyhing where he was PIC.

Machdiamond
2nd Mar 2022, 19:04
Anyone know if he was either a glider pilot, or ex (or current) military?

Whatever, I'd be happy to be a passenger in anyhing where he was PIC.

He does hold a glider rating, I saw him mentioning it during an interview on a local TV station.

Looking at the video, there is a glimpse of the airspeed indicator in sunlight that shows 105-110 knots while crossing the runway threshold (I took a screen capture and contrast enhanced to be able to read it). So his final approach was indeed flat but he had plenty of energy to bleed off.

340drvr
3rd Mar 2022, 11:05
Well done, indeed, textbook engine-out glide to landing.
FWIW, I don't believe the 205 has the big rear cargo door that can get stuck with flaps down (like the 206), and, the airspeed indicator probably reads in mph, but, plenty of speed on final, either way.

Pilot DAR
3rd Mar 2022, 12:53
I don't believe the 205 has the big rear cargo door that can get stuck with flaps down (like the 206)

Is correct. The 205 has two front doors, and a smaller left side exit about the size of an airliner overwing exit.

Being "too fast" on final for a power off landing is about the least thing to be concerned about if something can't be perfect, the worst is you go off the far end having slowed down a lot, which is much better than hitting whatever at flying speed short of the runway!

EXDAC
3rd Mar 2022, 13:37
Catastrophic failure of cylinders 4 and 6, the entire aft end of the crankcase sheared off.

I'm more included to think it was cylinders 1 and 2 that separated. The big "2" on the crankcase would be the first clue. Supporting evidence is that Continental rear cylinders, unlike Lycoming, are numbered 1 and 2.

Piper.Classique
3rd Mar 2022, 17:29
Yes, well at least that means you won't waste height and gliding distance trying a restart.

OvertHawk
3rd Mar 2022, 17:30
Is correct. The 205 has two front doors, and a smaller left side exit about the size of an airliner overwing exit.

Being "too fast" on final for a power off landing is about the least thing to be concerned about if something can't be perfect, the worst is you go off the far end having slowed down a lot, which is much better than hitting whatever at flying speed short of the runway!


I don't think anyone is saying he was "too fast"

I think people have observed that he kept a lot of speed to the threshold which gave him options if he felt he was dropping short and he had plenty of space to wash off the speed. Perfectly sensible given the runway length.

First time i watched it i thought he was cutting it very fine in coming in so flat to the threshold then i realised how much speed he had kept and changed my view.

Top job i think.

India Four Two
3rd Mar 2022, 18:13
Supporting evidence is that Continental rear cylinders, unlike Lycoming, are numbered 1 and 2.

That's always annoyed me, when switching from Lycoming to Continental powered aircraft and then discussing cylinder issues with AMEs. You would think they could have standardised it!

EXDAC
3rd Mar 2022, 22:10
I don't think anyone is saying he was "too fast"

Well I wasn't going to but I will now. It was my impression from watching the whole sequence that he was well above best glide speed, only made it to the airport because it was well within max glide range, and made a rather poor job of speed control and pattern planning.

I will of course be shot down because the end result turned out fine. If a student of mine flew a simulated engine fail approach like that he'd be doing a few more till he got it right.

megan
4th Mar 2022, 13:02
In the military they describe the engine out pattern (altitudes, airspeed etc) to be flown in some detail, what do you teach EXDAC as a matter of interest.

Pilot DAR
4th Mar 2022, 13:48
"Best glide speed" is the speed at which the airplane will achieve the greatest distance over the ground for altitude lost. for some airplanes, a comfortable power off approach speed will be faster. At least it will give you some reserve for an imprecise flare, which can happen under the stress of an actual engine failure. Crossing the numbers 10 -15 knots fast is generally manageable, particularly if it's planned. I was training this last week, with a good slip held right over the numbers (flapless plane). I won't criticize a pilot who makes a successful forced landing. Sure, we could all armchair it to have been better, and learn to be better ourselves, so let's do that too. For me, cross the numbers power off at "best glide speed" may be on the less comfortable side of safe, for a pilot who's not right up on the type. When your flares are judged and timed with excellence, consider flying best glide speed into the flare.

By the way, the flapless type I mentioned does have a remark in the flight manual about increasing speed above glide speed for a power off landing.

punkalouver
4th Mar 2022, 15:31
Well I wasn't going to but I will now. It was my impression from watching the whole sequence that he was well above best glide speed, only made it to the airport because it was well within max glide range, and made a rather poor job of speed control and pattern planning.

I will of course be shot down because the end result turned out fine. If a student of mine flew a simulated engine fail approach like that he'd be doing a few more till he got it right.

I only watched it once and didn't pay much attention to the airspeed at the time. I just noticed that it took a long time to get down due the the decision to have plenty of altitude(a pass for decision-making for this flight). There is a thread on another forum with the actual incident pilot commenting and mentioning his higher airspeed during the turn to final.

But the question is, in terms of the quoted post above,........if you are close to a long runway available with plenty of altitude, is there really a need to maintain best glide speed if you have more than enough time? Perhaps one need only target the best glide speed when there is an actual reason to target it.

Best glide speed prevents one from wasting energy that is needed now or may be needed later. What if you have a large excess of energy and you know that you will never need it?

Pilot DAR
4th Mar 2022, 16:16
One of our contributors here, John Farley, who sadly passed away a few years ago, told me, on the topic of forced landings: If you don't need to get maximum glide performance to "make it", don't bother, point it where you think you could crash it, and don't crash when you get there. He told me that this was based upon his demonstrating power off landings in the Hawker Harrier - not a plane we would think of for power off landings. He told me that gliding approach speed was around 250 knots, but it was easy. (perhaps for a skilled Harrier pilot!).

An unconventional technique, I agree, but I have tried it and it works. I'll pick a close spot, perhaps below me, and do a fast descent/slip into it. I find it easier to manage drag, even increasing speed to increase drag, to achieve a precise touchdown, than to try to judge and perfect the positioning of turns in a gliding circuit approach at "glide speed" to a forced landing. I entirely accept that it dilutes/distracts training to a standard to teach a forced approach where speed is deliberately maintained to an "other than specified" speed. but it is also one more tool in the box, if conditions permit it's use.

While checking out an instructor in a PA-18 on skis a number of years ago, I required him to demonstrate forced landings. His judgement was poor. Each attempt became a "won't make it" in the late downwind to base area of the circuit he was flying due to poor judgement. And, he did not assure himself a suitable landing area in between (even for safety during the training). The farther he allowed himself to get from the landing spot (big circuit) the more likely that he would mis judge, and the more winds could affect the outcome either way. I demonstrated a tight slipping circuit, modulating the slip as I needed to for glidepath control (albeit steep), and touched down nicely on my selected spot. A tight gliding circuit, with some excess speed allows precision, and holding a reserve later into the final approach, reduces some factors which will affect success.

RatherBeFlying
4th Mar 2022, 17:15
Winds were reported light, but they shifted to favor the reciprocal runway indicating that windshear was lurking. And there's just about always some windshear; so better to have something to give away than be caught short.

Remember the forced landing advice is to aim one third into the field (implied at best glide speed). Aiming for the threshold you better have extra speed.

Really best glide speed is about maximizing field options and applies to still air (a rare and highly localised phenomenon aloft - I have an excellent wind display based on 3D accelerometer and compass sensors integrated with TAS to back this up).

Downwind and a bit slower expands your options. Upwind you will have to fly a bit faster and will not go as far.

Once you do have your field made, it's time to increase speed to have a cushion.

EXDAC
4th Mar 2022, 17:43
By the way, the flapless type I mentioned does have a remark in the flight manual about increasing speed above glide speed for a power off landing.

In no part of my post did I suggest that final approach should have been at best glide speed. Best glide speed, compensated for actual weight, wind, and airmass sink/lift, is appropriate until reaching the intended landing site. Once over the intended landing site best glide speed has no relevance. The task is now to select a touchdown point and to fly the circuit/pattern to land near that point using appropriate pattern/circuit speeds.

Since nearly all my (airplane) approaches are at idle power all I would need to do is move the planned touchdown point further down the runway to have some margin in case I misjudged the difference in glide between idle and a real engine fail. (Those who always make shallow dragged-in approaches will have much more problem judging an engine fail circuit/pattern.)

Pilot DAR
4th Mar 2022, 19:15
Since nearly all my (airplane) approaches are at idle power all I would need to do is move the planned touchdown point further down the runway to have some margin in case I misjudged the difference in glide between idle and a real engine fail. (Those who always make shallow dragged-in approaches will have much more problem judging an engine fail circuit/pattern.)

I generally do the same, and agree entirely!

megan
5th Mar 2022, 09:50
Those critising the pilots approach fail to be cognisant of his experience and level of skill, there is more than one way of skinning a cat. Who could pour themselves a glass of water while performing a barrel roll, not many I venture, but it can been done, Bob Hoover. Chuck Yeager had to eject because he had neither the instrument flying skills nor an understanding of engine gyroscopic effects, all because he declined the instruction from the project pilot.

In our neck of the woods back in the old, old days one of the skill tests for a private license was to shut down the engine at a given height (and I mean shut down, mags off) and perform an engine out landing with touchdown as close as you could get to a marker on the runway, accuracy determined whether you passed, or not.

EXDAC, what do you teach for an engine failure pattern?

Piper.Classique
5th Mar 2022, 10:04
There is always someone who thinks they know better. Major engine failure, great situational awareness, controlled flight and engine out circuit to a safe (and smooth) landing. All critics please present themselves for a competition to see if they can do better.
In an aeroplane that they own, please.
Volunteers?
No? Well, there's a surprise.

EXDAC
5th Mar 2022, 10:47
There is always someone who thinks they know better. Major engine failure, great situational awareness, controlled flight and engine out circuit to a safe (and smooth) landing. All critics please present themselves for a competition to see if they can do better.

My evaluation of the demonstrated performance was not a criticism of what the pilot did, or the outcome. It was a comment on all those who seem to be saying he did it perfectly. Why not learn something from the discussion?

I have no intention of failing the engine in either of my airplanes just to see how well I would handle it. I did win my club's recent spot landing contest with a simulated engine fail approach (idle power before base turn) that touched down 49 feet past the mark. Only the best one counted but my other attempts were 91 feet long and 50 feet short. I'm reasonably confident that I could handle an engine failure that left me in gliding range of a runway.

The hard part for me is accepting the less than 8:1 glide ratio after over 3,000 hours in gliders.

JammedStab
7th Mar 2022, 11:05
My evaluation of the demonstrated performance was not a criticism of what the pilot did, or the outcome. It was a comment on all those who seem to be saying he did it perfectly. Why not learn something from the discussion?
.

I guess the issue is that you stated poor airspeed control and pattern planned for a situation that was handled with resounding success as if the final result was successful despite poor techniques being deployed.

I might suggest that airspeed control and pattern flown were quite satisfactory to achieve the desired goal. In addition, I would state that a superior pilot has flexibility in thinking ta adjust as appropriate to the circumstances at hand instead of blindly following the standard practice scenario.

I will add that for a complete loss of engine power, he did have near ideal circumstances.

Maoraigh1
7th Mar 2022, 19:04
Note that he used his extra speed to clear runway, after checking with ATC that this was acceptable.
Some seem to think blocking the runway until towed clear would have been better - the result if he'd had less speed.

punkalouver
7th Mar 2022, 23:42
Note that he used his extra speed to clear runway, after checking with ATC that this was acceptable.
Some seem to think blocking the runway until towed clear would have been better - the result if he'd had less speed.

I think he was emulating this guy(see at 8:57). Perhaps he did the same wave.....
https://www.youtube.com/watch?v=bQWXMLtR-LA&t=537s

Or if he had just been low on fuel......

https://www.youtube.com/watch?v=HUtBiyGpyyY

megan
8th Mar 2022, 06:12
Originally Posted by EXDAC
My evaluation of the demonstrated performance was not a criticism of what the pilot did, or the outcome. It was a comment on all those who seem to be saying he did it perfectly. Why not learn something from the discussion?The results speak for themselves, he did do it perfectly.It was my impression from watching the whole sequence that he was well above best glide speed, only made it to the airport because it was well within max glide range, and made a rather poor job of speed control and pattern planningHe was fortunately in a position where speed control and pattern planning was rather unimportant to him, because he had altitude in hand and presumably confidence in his skill level.

I don't recall what I was taught with regards to flying a pattern for forced landings when I went through the local aero club in 1962 and I've been asking what you teach, but you seem rather reluctant. My military training taught very specific engine out patterns for the particular aircraft, whether it be for a T-34, reproduced below for the high altitude case, or a F-104, which I never flew. The procedure works a treat.


https://cimg0.ibsrv.net/gimg/pprune.org-vbulletin/746x842/vv_075c6e71898f396af46226114e436f42fbe1158c.png

Jhieminga
8th Mar 2022, 11:23
I've taught plenty of forced landings and the procedure from low key on was not that much different to what's shown above for the T-34. We started out teaching a standard pattern but if we later created a simulated forced landing for a student the only grading item was: did they end up in a position and configuration from which they could safely land the aircraft. If they used the standard pattern: great! If they found another route that led to a safe landing: also great!

Pilot DAR
8th Mar 2022, 11:55
If they used the standard pattern: great! If they found another route that led to a safe landing: also great!

That's what I was taught, and teach. I would rather a student build a bigger toolbox based upon understanding, and solid skills. As long as factors which could affect safety with a varied technique have been considered.

EXDAC
8th Mar 2022, 13:34
I've been asking what you teach, but you seem rather reluctant.

Pick the touchdown point and fly a controlled speed descent to touchdown at the chosen point with minimum energy. There is no defined path and no defined configuration. Both need to be adjusted to maintain the sight picture that will result in touchdown at the selected point. That technique will work just as well for an off airport landing as for a 10,000 ft paved runway. I don't believe the pilot shown in the video had any clue where the aircraft was going to touchdown.

A touch down with minimum energy at the chosen point will allow the aircraft to roll clear of the runway if the touchdown point was well chosen. However, rolling clear of the runway is very low priority.

The video pilot was very fortunate to be in range of a long runway. I doubt he would have survived an off airport landing.

Maoraigh1
8th Mar 2022, 19:04
"The video pilot was very fortunate to be in range of a long runway. I doubt he would have survived an of airport landing"
I doubt he would have used that technique for an off-airfielf landing.

Pilot DAR
8th Mar 2022, 19:22
Touchdown with minimum energy yes, and controlled speed descent to to touchdown yes. But, that does not mean it is necessary to aim for minimum energy any earlier than necessary in the approach. If the power off approach is managed with excess speed, when excess speed does not matter, then the speed is bled to minimum energy just prior to touchdown, that's okay. Aside from going needlessly off the end of an overly long landing area, getting down safely is the objective, the finesse is secondary, and artistic merit points hold little value.

I opine that the pilot would have applied a different and suitable technique for a different landing surface. I would like to receive the benefit of the doubt so I'm prepared to extend it to other pilots in the absence of any other information (and a fast approach/long landing is not it).

Now, for a forced approach onto water (which I have done), it is wise to include a stop as close to shore, or helpful vessel in the plan. So as often, broad thinking is needed, and simple "rules" will have exceptions.

First_Principal
8th Mar 2022, 19:56
...The video pilot was very fortunate to be in range of a long runway. I doubt he would have survived an of airport landing.

I think this quite unreasonable.

So far we've seen a pilot who has completed a successful landing into his chosen field after catastrophic engine failure, he's had the presence of mind to communicate well and think of things outside his immediate concerns, and no doubt he's also been examined on FL's into different places during his initial and subsequent tests.

There are many factors involved in the success or otherwise of a FL, especially when the available terrain for landing is variable, but I couldn't question this pilot's competency or presence of mind as a factor - in my view, there's nothing in what we've seen here that could lead to a conclusion that he wouldn't do a good job elsewhere.

One needs to bear in mind that this is an example of just one actual - successful - FL this pilot has concluded in specific circumstances. While it's fine to review and discuss - indeed it's good to use such examples to learn from - criticism such as suggesting he wouldn't survive an 'of [sic] airport landing' is a leap so far that, maybe, it says more about the deliverer than the recipient?

FP.

EXDAC
8th Mar 2022, 23:04
While it's fine to review and discuss - indeed it's good to use such examples to learn from - criticism such as suggesting he wouldn't survive an 'of [sic] airport landing' is a leap so far that, maybe, it says more about the deliverer than the recipient?

What techniques demonstrated in the video would you think would be appropriate for an off airport landing. Do you actually think that a landing spot was selected? Do you actually think the touchdown was at the selected landing spot? Do you think the vertical path and speed was appropriate for an on airport or off airport landing with an engine failure?

Go back to the military engine out approach diagram posted earlier, Can you find any part of the video's approach that comes close to the approach path that shown in that diagram?

Which parts of the video would you use to tell your students - this is how you should make an approach and landing with an engine failure?

It is my opinion that primacy will rule. If you never practice idle power approaches to landing at a preselected spot you will not be able to do that when the engine fails.

I'll concede that this video may not be representative of the pilot's ability to perform a safe off airport landing. I'll revise my comment to say - In my opinion this pilot would not have survived an off airport landing using the technique shown in the video.

megan
9th Mar 2022, 05:01
In my opinion this pilot would not have survived an off airport landing using the technique shown in the video.Come back to the real world, what pilot in his right mind would be using that technique for an off airport landing? The chap is fortunate the engine failed when it did, it looked like he had a tree top solid undercast on track just ahead of him. I don't believe the pilot shown in the video had any clue where the aircraft was going to touchdownGiven the runway available there was no absolute need to have an exact touch down point in mind.Go back to the military engine out approach diagram posted earlier, Can you find any part of the video's approach that comes close to the approach path that shown in that diagram?He was on top of the airfield at 2,300 AGL on a northerly heading and from midfield flew a continuous left turn to touchdown on 31L, a disciplined approach, exactly as the diagram shows, only differing in speeds and altitudes, as does the F-100, F-104 etc diagrams et al.Pick the touchdown point and fly a controlled speed descent to touchdown at the chosen point with minimum energy. There is no defined path and no defined configuration. Both need to be adjusted to maintain the sight picture that will result in touchdown at the selected point. That technique will work just as well for an off airport landing as for a 10,000 ft paved runwayThat doesn't actually explain how you ensure a safe landing, he actually complied with each of the points you make. The pilot actually says to himself "Alright Kev, don't f*** this up we do this......", his statement is cut off by a radio transmission but I bet the rest of his statement was "all the time", probably reflecting on an instructional background perhaps, that assessment is backed up by his cool unflustered manner.

When I did a flight test with a regulatory pilot with 60 hours in the log for the award of a CPL scholarship he gave me an engine off at 3,000 in the C150, was positioned on a high, high final for a grass cross runway, planted it right on the numbers, full flap 40°, his critique was be careful of wind shear, a valuable piece of advice not mentioned previously, aiming to touch down as close as possible to the boundary fence of a short paddock is fraught if the sight picture becomes suddenly starts rising (undershooting), better to aim to land deeper into the paddock and run off the end at slow speed.

EXDAC
9th Mar 2022, 15:07
Come back to the real world, what pilot in his right mind would be using that technique for an off airport landing?

Well I think we agree that the answer is no one who had the skill to make a successful off airport landing would be using the demonstrated technique. What we don't seem to agree on is whether someone who used this technique to land on a 6,600 ft runway would be able to use a completely different technique to land off airport.

I prefer to use the same landing technique for an 8,000 ft runway as for a 600 ft dirt strip. That technique starts with selecting the touchdown point and everything else flows from that. If there is no selected touchdown point then there is no aim point and no possibility of establishing a stable sight picture.

I simply do not understand why anyone would think that coming over the runway threshold that low and floating about 2,000 ft down the runway in ground effect would be held up as an example of how to handle an engine out landing.

Pilot DAR
9th Mar 2022, 16:28
I prefer to use the same landing technique for an 8,000 ft runway as for a 600 ft dirt strip.

I see the situation differently. If I have 8000 feet of good runway available, I'll make a darned good job of a nice landing, knowing that I have less control over the touchdown point than I would have had with power available. If I have 600 feet of dirt, I know that I can get it on the ground, but it may be messy. I would allow myself the knowledge that it could be damaging to the aircraft with either an undershoot, or overshoot. My insurer would be happy if my 600 foot dirt strip runway in non injurious, or causes third party liability. They'll accept some damage to the plane if my 600 foot dirt strip landing were imperfect. OTOH, the insurer is going to think poorly of me if I err, and damage a plane by poor spot landing technique, when there was 8000 feet of runway available, and I obviously had the speed height to make it. A real emergency is not the time to fuss up the main task, trying to be perfect about it, just be as safe and non damaging as possible.

My first forced landing (of five over the years) was a gliding approach from a wide downwind (though a landing had not been intended at that airport, until it coincidentally quit then). The runway was Toronto Island Airport, and there is water at the very end of that runway. My aim point was not the end of the runway, it was about one third along, in case I undershot. I was not embarrassed to roll out long in a 182 on a 3000 foot runway. I was safely down with no splash. When I land there with power from time to time, I pride myself on not tying up traffic, I clear at the intended taxiway neatly each time, with no protracted time on the runway.

Piper.Classique
9th Mar 2022, 18:10
There is always someone who thinks that the pilot who made a safe landing after an engine failure could have done better. I'm a glider pilot, too.
it's not the same. I say again, it's not the same. Gliders are always landed without the use of an engine ( yes, OK, some motor glider trainers may not be but that's what we are discussing here)
I've put gliders in fields, not so many once I got better at soaring flight. I've put a powered aircraft onto an airfield after an engine failure. Just the once. It had my heart rate somewhat elevated.
It's not the same. Expectation with a powered aircraft is to arrive at destination and land with the benefit of engine, flaps, the possibility of a go around. In a glider there is always some possibility of an out landing, but it's made for that.
This person landed neatly after a controlled circuit, without the benefit of airbrakes, or a good glide ratio. Flaps? Maybe available, maybe not. Nothing broken, no unseemly rush or panic.
It's a pity he will have to buy a new engine. If he had wrapped the aircraft up in a heap of bits and got out unhurt he could have made an insurance claim.
But he didn't. Good landing under control. But hey, someone always knows better.
Did I mention, it's not the same?

EXDAC
9th Mar 2022, 18:18
I see the situation differently. If I have 8000 feet of good runway available, I'll make a darned good job of a nice landing, knowing that I have less control over the touchdown point than I would have had with power available. If I have 600 feet of dirt, I know that I can get it on the ground, but it may be messy.

My statement that "I prefer to use the same landing technique for an 8,000 ft runway as for a 600 ft dirt strip" was for landings with available power. The extrapolation being that if I do it the same way on the long and short runways with available power I would also do it the same way after an engine failure. The key points of "same landing technique" being selection of a touchdown point and using the sight picture to control descent to land at that point. (The runways were not hypothetical, it's turning out to be a fairly regular trip for me.)

EXDAC
9th Mar 2022, 18:37
Did I mention, it's not the same?

Yes, you did, but I don't know why. Selection of a touchdown point and using the sight picture to land at that point is a technique that is equally applicable to gliders, airplanes with power, and airplanes after loss of power.

Many post ago you challenged me to a competition. I gave you my results. What were yours?

Piper.Classique
9th Mar 2022, 19:05
Yes, you did, but I don't know why. Selection of a touchdown point and using the sight picture to land at that point is a technique that is equally applicable to gliders, airplanes with power, and airplanes after loss of power.

Many post ago you challenged me to a competition. I gave you my results. What were yours?

Did you? You won a spot landing competition. Yep, I've done that too. Everything working, just not allowed to use it. Dead sticked the cub, prop stopped, from time to time for fun. Ditto the Magni M14, and quite a lot of gliders into fields.
We do our spot landings from the overhead, but from downwind works too. Like I said, it's not the same. I had a for real progressive engine failure in a C172, flying a hold with a student. Didn't actually stop until we were on the ground. It's still harder than doing it for fun, but like I said, there's always someone who knows better.

megan
9th Mar 2022, 19:40
What we don't seem to agree on is whether someone who used this technique to land on a 6,600 ft runway would be able to use a completely different technique to land off airport.How in the world can you judge from a video what a pilot is, or not, capable of. Would you presume from this video that the pilot doesn't know how to fly a circuit?

https://www.youtube.com/watch?v=jyBDEG9dg-Q

I prefer to use the same landing technique for an 8,000 ft runway as for a 600 ft dirt striphow does that work when ATC asks you to keep your speed up on final when there is a jet behind you.

Piper.Classique
9th Mar 2022, 20:06
How in the world can you judge from a video what a pilot is, or not, capable of. Would you presume from this video that the pilot doesn't know how to fly a circuit?

https://www.youtube.com/watch?v=jyBDEG9dg-Q

how does that work when ATC asks you to keep your speed up on final when there is a jet behind you.
Megan, I don't know about you but I think I'm bowing out gracefully from this one. There is always someone who knows best. But you know the saying, " on the internet, nobody knows you are a dog"

Maoraigh1
9th Mar 2022, 20:15
"My statement that "I prefer to use the same landing technique for an 8,000 ft runway as for a 600 ft dirt strip" was for landings with available."
Landing on a mere 1700m runway, with a 150m requirement in nil headwind, and no parallel taxiway, I'd Bea nuisance if I always touched down on the numbers, then taxied.
In a strong wind straight down R23, with R06 having a displaced threshold, I once touched down on the upsidedown 06 numbers.
It's useful to be able to vary what you do after your first few solo approaches.:-)

Pilot DAR
9th Mar 2022, 20:49
The extrapolation being that if I do it the same way on the long and short runways with available power I would also do it the same way after an engine failure.

I've given this thought, because I see both sides of it. Yes, I like to fly with precision at every opportunity, and be consistent about it, and training consistency to new pilots is certainly a good idea. And, I agree that it's an awkward situation to train a pilot to follow good process X, and then complement them when they flew Y, and it worked. But...

A successful out of norm approach under emergency conditions could be considered "deviance" from proper process... Yes? So we have deviance, and we're agreeing to not "normalize" it. It was acknowledged as deviating from the proper way to do it, not ideal, and not a new training element, but not criticized either. I don't like normalization of deviance, but under extreme circumstances, I can accept considered deviance.

There are different approaches. Sure, in the circuit to a standard airport runway, they should be the same, other than maybe purposefully landing long. But, When I teach on floats, many new factors are introduced, and a few common factors pretty well abandoned. After a reconnaissance overflight, and water check, I may direct a pilot to fly between trees to tuck it in tight to shore, or to drag it along, and chop power at a certain point, to get around the corner to more calm water. So if a pilot employed a similar odd technique on land for an emergency, and could justify why, I would consider, rather than dismiss their thoughts....

EXDAC
9th Mar 2022, 22:12
but like I said, there's always someone who knows better.

Well I'm glad at least that you acknowledge that. However, I don't think you have ever explained why the technique demonstrated in the video should be held up as an example of how to fly an engine out approach.

EXDAC
9th Mar 2022, 22:38
It's useful to be able to vary what you do after your first few solo approaches.:-)

You may have missed the point. Selecting a landing point and using visual reference to descend and land on it does not mean the selected touchdown point is the same fixed place on every runway for every landing. The variation is in the selected touchdown spot not in the goal to select one and land at it.

punkalouver
10th Mar 2022, 00:57
There are runways over ten thousand feet long, At what point can we stop treating them like a 600’ strip if power was lost.

The whole idea doesn’t make sense.

If I had been there in that aircraft, there is no way I would treat a 6,000’ runway like a 600’ strip in such a situation. Imagine being at best glide speed and setting yourself up to touchdown about 1-200 feet from the threshold of a 6000’ runway. Raise your hand if you have ever misjudged a practice scenario and discovered that you were not going to make the field you chose.

If you have plenty of extra runway. Keep some extra energy. Some, not a lot.

Pilot DAR
10th Mar 2022, 05:35
I have noticed (and experienced) that selecting, identifying, and then maintaining an aim point for touchdown is a little easier on a small runway, and occasionally easier off runway, depending upon the surface. A big runway with stripes can nearly give a GA pilot a form of empty field myopia. Unless there's a particular visible different spot (like a odd skid mark, or off coloured path repair) the mix of asphalt and stripes can have a confusing checkerboard effect - I lost my spot, which one? While a turf runway may have a bald spot, or odd fence post beside which is unique, and an obvious aim point you can momentarily look away from, and then find again. When I teach skis on ice, I'll refer to a small crack in the ice or snowmobile track, and land just past. When I have taught on paved runways, it's actually been more difficult to direct the student to what I see as a good aim point; "aim for the beginning of the second stripe past the piano keys...." "Um... one... two... um...". When I teach off asphalt; "see that bald spot 200 feet from the fence? Aim for it." And, that spot is repeatable for circuits and consistency.

That's not an excuse for poor speed control for a normal, power available landing, but as I have said, I'm entirely okay if a pilot allows themself a decent excess of glide approach speed when the landing area is not constrained, and they know that they can bleed it off...

megan
11th Mar 2022, 03:25
Some C205 data. No flap approach 78 – 87 kts, short field 40° flap 72 kts. Manual gives no best glide speed. Why no flaps in this event? They’re electric, mmmmm, enough battery left to do the job?, or do I keep the radio running for coms with ATC? Decisions, decisions, guess we could give the pilot flak for no mayday or pan (just kidding, ATC was under no misapprehension as to what was occurring).

By my reconning and measurement the chap touched down 2,100 feet into the 6,600 foot runway, close enough to the suggested one third in my book. If anyone wants to complain they need to bring their own thumb tack along upon which to sit

Juan Browne, commentator of the following video, started his flying career as a teenager. He bought his first airplane when he was 15 years old, and has bought and sold dozens of airplanes since.

He earned his A&P license right after graduating high school, then attended college on a ROTC scholarship. After graduation, he was commissioned in the Air Force and attended Undergraduate Pilot Training (UPT) at Williams Air Force Base.

After UPT, Juan became a T-37 Instructor Pilot at Mather Air Force Base. His next assignment was flying the C-141, and he quickly rose to Aircraft Commander, flying all over the world, nonstop using air refueling.

He next flew C-130 aircraft with the Reno Air National Guard, and finally secured a job as an airline pilot with American.

Type Rated DC-9, 320, 757, 767, 777

Owns and flies a private Cessna 310.

Posted his credentials to give credibility to his view. His attaboy view.

https://www.youtube.com/watch?v=C30b2OQDj_8&t=3s

double_barrel
13th Mar 2022, 09:25
Nice job. But I have to ask, why is it not possible to have good natured and non judgmental discussion of what happened and what might have been done differently or better, without a chorus of comments basically saying “shut up, no one died, good outcome, I suppose you think you could have done better”?

I look on all of these as a learning opportunity despite the fact that I’m certain I would not have done anything like as well as this pilot.

DaveReidUK
16th Jul 2022, 21:58
"Because of the successful outcome, I am left with a large bill to repair the aircraft and return to flying."

Hmmm. Would the pilot have preferred a different outcome ?

An expression involving blessings and counting springs to mind.

WideScreen
18th Jul 2022, 06:41
For the situation, all good choices, I would say.

My personal preference would be another technique, though that's maybe because I fly the C172s, where the aircraft does allow for this.

Stay high until your touch-down aiming is roughly 45 degrees down in front of you. Then full flaps and dive with some 45-60 degrees nose-down. With the C172 barn-doors out, the speed goes up to the max full flaps speed (granted, 1 kt over .....). Near the ground, round out and let the speed bleed off very quickly (the barn doors, from 92 down to 40-50 goes really fast) and subsequently settle. With some practice, you can easily reach a repeated accuracy of "within 50 feet". It's also relatively insensitive to wind speeds (compared to a "normal" glide-in). A good opportunity to practice this technique, is the exercise to "close the throttle on your own discretion" and land at the intended spot. It needs some muscle-power to overcome the out-of-trim during round-out and settling, though.

I did this many moons ago, with my first exam. There was the initial mental tension from the examiner, "what's this guy doing", and then some high-pitched squeaking noises after initiating the dive, though, when I explained him during the dive, the speed would be OK, he relaxed. I passed ;-)

One more option to control the settling is to have full flaps and just before the intended landing spot raise the flaps. Better do this with a mechanical flap lever. This may give a hard-landing, so it'll need a careful "stable close to the ground floating", before doing so. Though, in an emergency, with little landing distance available, it's giving you the opportunity to avoid the "float forever" and get (IE force) the aircraft on the ground and be able to brake, etc. And, at the same time, reducing the undershoot risk, since you know, you have a trick available to force the aircraft on the ground, and can keep up the speed a little more.