Classic stall

[Squawk7700]

Didn't get the memo about 1.3x stall speed for air displays.

https://youtu.be/ahMIffZhBD0

[djpil]

The manual for my FAR 23 factory built airplane specifies 1.07 times the power off stall speed for landing approach to achieve the book figure for landing distance.

And, being a tailwheel airplane, CASA's Part 61 mandates that for training as well as requiring the student to achieve better than the distance from the book.

[Duck Pilot]

Video clearly showed the stall buffet prior to the wing drop.

Very lucky pilot to walk away from that accident.

Air displays and pilots mishandling their aircraft resulting in an accident, second one this year! Not a good look.....

[Squawk7700]

The manual for my FAR 23 factory built airplane specifies 1.07 times the power off stall speed for landing approach to achieve the book figure for landing distance.

And, being a tailwheel airplane, CASA's Part 61 mandates that for training as well as requiring the student to achieve better than the distance from the book.

1.07 isn't that much of a buffer however in perfect conditions it might be ok.

From memory the CASA display guidelines specify 1.3x but it's been quite a while since I've done one.

[Cloudee]

Didn't get the memo about 1.3x stall speed for air displays.

https://youtu.be/ahMIffZhBD0
This bloke did two things wrong:
1. Don't try to land 10 metres above the runway.
2. If you want to land short, use a Supercub!

[Aussie Bob]

1.07 seems very slow to me too, what sort of aeroplane is this?

[Squawk7700]

Looks to be an raaus registered Highlander SuperSTOL.

The Highlander ? Wild West Aircraft (http://www.wildwestaircraft.com/the-highlander/)

[27/09]

1.07 seems extremely slow to me too.

I thought all POH landing distances were calculated at 1.3 Vs with a 50 ft threshold crossing height.

[Squawk7700]

There's a very subtle f*ck in the commentary at 33 seconds. I'm not surprised!

[Tarq57]

Maybe a little gusty to be approaching with so little margin.

Classic commentary, post-crash. "Whoops, folks, something's gone wrong."

[Vincent Chase]

Happened about 2 years ago so not recent, the bloke flying spent a looong period of time flying heavy aeroplanes around wee waa in the dark so proof that a crowd can make even the best of us push a bit too far. I'm pretty sure the commentary was his wife so held it together pretty well considering! The fact he walked away must be a good selling point now I reckon.

[Capt Fathom]

Classic ingredients: plane, camera, audience. Oops!

[Duck Pilot]

Selling point to who? Undertakers, the pilot is lucky to be alive.

[Ex FSO GRIFFO]

Shudda 'picked it up' wif rudder.......

(Stby for incoming.......)

Cheers:p

[Capt Fathom]

Downwind turn......? :E

[jas24zzk]

Was taught 1.3 Vs by Mike Valentine during my abinitio on gliders. His words were 1.3 will work for just about any aeroplane, remember it.

Over the years flying with different pilots in unfamilliar aeroplanes, watching them and doing the calculation mentally, i've always found the number to be pretty close to what they fly, and also pretty close to most POH's on types i have flown.

There is always the exception of blokes on bonza's 100 knots over the fence, or some others I know, combat power till the crunch.

[RubberDogPoop]

Did they sell many after that?

[flywatcher]

I would check the rigging of that aircraft pretty carefully.

[Capn Bloggs]

Shudda 'picked it up' wif rudder.......

The wif couldn't pick it up, she was on the PA! :E

[Flying Binghi]

Pilot lost control at tree top height and walked away... looks to be an excellent selling point to me...:cool:





.

[Ultralights]

Did they sell many after that?

actually, they are selling very well, quite a few in the USofTrump. and very capable aircraft as well.

tough long travel landing gear helped.

[Cloud Basher]

I watched this happen at the Hunter Airshow at maitland last year. He was coming in doing what these STOL blokes do, on the backside of the curve with power with very little margin above the stall, trying to land as short as possible.

It was a fairly windy day with some gusts around. I am no accident investigator so this is only speculation, but it seemed to me not enough margin above the stall, hit a gust, wing dropped and down she came. Regardless of the cause of the stall, a stall it was. Unforgiving with power on at that altitude.

It was a fairly "soft" crash and a pretty good advertisement for the aircraft I think. Those big shock absorber struts certainly absorbed the impact well. The speed he was flying certainly helped with minimum energy to dissapte. Bugger all forward velocity.

As an aside, this aircraft will crap all over a Supercub in a STOL contest (this landing example notwithstanding!). Great little aircraft. It is back flying again.

Cheers
CB

[RubberDogPoop]

actually, they are selling very well, quite a few in the USofTrump. and very capable aircraft as well.

tough long travel landing gear helped.
Sorry, couldn't find the "canned laughter" audio file, nor the "tongue in cheek" emoticon - I'll be more careful next time....

[Flying Binghi]

...As an aside, this aircraft will crap all over a Supercub in a STOL contest...

But are you comparing apples to apples. :)

Trails rider told me he could climb three metre vertical walls with his bike. I said my 1000RR can do two hundred miles an hour.....

Mission profile - 200 miles out, land on a tight field, load up, fly back, all on the one tank full...;)





.

[Cloud Basher]

But are you comparing apples to apples. :)

Trails rider told me he could climb three metre vertical walls with his bike. I said my 1000RR can do two hundred miles an hour.....

Mission profile - 200 miles out, land on a tight field, load up, fly back, all on the one tank full...;)





.

FB,
Use whatever apples you like. It was posted that if you want to land short use a Supercub. This lands well shorter and takes off shorter. That is all I was saying. :ok:

Cheers
CB

[Pinky the pilot]

Was taught 1.3 Vs by Mike Valentine

Mike was one of my Lecturers/Instructors way back when I did an Assistant Instructors rating for Gliders.

A good Man! It was somewhat distressing to hear of his passing, now quite a few years ago.:{

[flywatcher]

FB,
Use whatever apples you like. It was posted that if you want to land short use a Supercub. This lands well shorter and takes off shorter. That is all I was saying. http://cdn.pprune.org/images/smilies/thumbs.gif

Cheers


CB It does not appear to have the same good manners that a Supercub has.

[Andy_RR]

I don't think a Supercub would be flying at that speed or AoA.

[Tankengine]

I would check the rigging of that aircraft pretty carefully.

Rigging is pretty stuffed now! ;)

[flywatcher]

I don't think a Supercub would be flying at that speed or AoA.

Andy RR, a Supercub may not fly at quite that speed and AoA but if properly rigged and with one POB it would not drop a wing and dive into the ground. It would reach a very high rate of sink but would recover from a semi stalled situation with a bit of power. Hence my comment previously on airframe rigging. It is pretty standard in the bush in a Supercub to get into a short strip over the trees to hold the stick back until airframe buffet and recover the resulting high sink rate with a large application of power then close throttle and land. Does take a bit of practice first.

[djpil]

I haven't dome much in a Cub so I'll keep my comments to the Husky which was based on the Cub so some similarities. Book landing approach speed is 70 mph which the POH notes is 1.3Vs. Book Vs is 53 mph with full flap.
70 mph is too hard to achieve, 65 or so is much easier - that's 1.2Vs.
Today we were doing steep approaches in a 30 deg banked turn/sideslip between 60 and 65 (my student needs to work on being more precise), crossing the fence at 55.
Stalls in these situations/configuration are a non-event - there are others where it will get quite aggressive.

(I wouldn't do that in my usual Decathlon, per my prior post.)