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-   -   Lakenheath F-15's in Airprox with parachutists. (https://www.pprune.org/military-aviation/625446-lakenheath-f-15s-airprox-parachutists.html)

Treble one 12th Sep 2019 11:14

Lakenheath F-15's in Airprox with parachutists.
 
Link from the BBC. Airprox report linked in the text.

Cheers
TO

https://www.bbc.co.uk/news/uk-englan...shire-49664560

Fly Aiprt 12th Sep 2019 12:44


Col Will Marshall, 48th Fighter Wing commander, said UK airspace was "incredibly complex and often congested"
Looks like a lame excuse...

blind pew 12th Sep 2019 13:58

Apparently report states that the parachutists
 
Could have opened their chutes to slow their decent.
get real air prox

pr00ne 12th Sep 2019 15:53


Originally Posted by Fly Aiprt (Post 10568243)
Looks like a lame excuse...

And some US airspace is THE most incredibly complex and most congested on the planet.


wanderinwilco 13th Sep 2019 07:06

I was once underflown by a flight of F16s while I was below 800 feet on finals to Marathon, in the Florida Keys. Air traffic acknowledged their presence only after I had reported them.

As an Vet I have worked with the US Military on many occasions and they are the only people who have ever frightened me.

Bob Viking 13th Sep 2019 07:21

I could be wrong, but...
 
There appears to be a subtext, from the posts so far, that the USAF crews were clowns and should have known better.

I will stick my hand up as a fellow FJ aviator and say it looks like an honest mistake in what really is very cluttered airspace.

They were under IFR and receiving a service so, despite local knowledge, I think they can be excused for the error. I think ATC, despite mitigating circumstances, are equally culpable.

We don’t always have to jumpy on Johnny Foreigner and make out we are so much better than them. Besides, have any British crews ever gone overseas and made mistakes due to inadequate local knowledge?

I suggest this Airprox is a timely wake up call and not really a major story. No harm, no foul.

BV

BEagle 13th Sep 2019 09:50

For full report see: https://www.airproxboard.org.uk/uplo...%202019077.pdf

Not quite as bad as one of our RAFC QFIs who, in his brief time on Buccs, was startled to see an object dropping out of the sky in front of his formation. "F... me, what's that?" he thought - whereupon said object sprouted a parachute and revealed itself to be a Land Rover, shortly followed by various other bits of pongo kit on parachutes!

just another jocky 13th Sep 2019 09:58

I applaud the proactive attitude of the folk at Chatteris, informing those other units around them of their activities. Such a shame others do not follow the same procedures.

Just This Once... 13th Sep 2019 10:44

The "incredibly complex" statement needs to be seen and understood in the context of international airspace regulations and practices. Taking the UK-blinkers off for a moment you have to question the wisdom of what has become routine and why the Board failed to mention some basic fundamentals - and yes, I have been a Board member.

Class G airspace is defined by ICAO. Fundamentally it is uncontrolled airspace, with shared usage, no requirement for ATC or, when flown VFR, no requirement for a radio to even be fitted. The 'see and avoid' principle reigns supreme with encouragement to use an ATC traffic service where available and appropriate. The F-15 crews met or exceeded all requirements.

The "incredibly complex and congested" part of UK airspace is that you can be happily flying at medium level in open airspace and have groups of people ballistically descending through your flightpath. These people-shaped objects are quite heavy, are sometimes strapped together, have no radios, transponder, TCAS, lights or any meaningful ability to alter their flight path.

The Board, correctly in my view, has formally acknowledged that the pilots were unlikely to see ballistic people and take avoiding action. This is quite a change from Boards that I have sat on who often opined that see-and-avoid was possible and that aircraft should therefore give-way to parachutists.

So the big in-your-face question mark is the regulatory wisdom of allowing uncontrolled objects/people to ballistically descend through unprotected airspace. The tone of the Airprox Board is that aircrew should avoid such areas. Well, guess what, aircrew do just that when the activity is surrounded by protected airspace. But this activity was not taking place within protected / restricted airspace.

Buried in the AIP somewhere is a statement to the effect that the mere listing of a drop zone does not imply any right to a parachutist to use that DZ. Military Free Fall parachuting takes the view that NOTAM'ed restricted airspace or operations in dedicated danger areas are more appropriate methods of achieving safe separation. Civilian parachuting cloaks itself in the hope that pilots will avoid bits of otherwise open airspace that may or may not have parachutists zipping through it.

Nothing here is new. Over 20 years ago I was part of a pair recovering to Marham, operating intermittent IMC at around FL110 under Radar Advisory when we nearly hit 2 men, one of which was dressed as a clown. What is new is that there has been a massive growth in sports parachuting in the UK, operating in Class G airspace, yet unable to comply with the rules of the air. Covering the UK charts with an overlapping blanket of advisories and potential aviation activity information provides no meaningful measure of safety.

This soap-box is slippy, so stepping off now.

hoss183 13th Sep 2019 11:09

I'd love to see the video, it must be out there somewhere....

Momoe 13th Sep 2019 17:49

In reply to Justthisonce, active sites GA/parachuting/gliding are marked as such on aviation maps, generally the military avoid them because A) they are aware and logistically it makes no sense for introduce potential conflict and B) A FJ doing 300 knots in non-advisory, Vfr mode is unlikely to visually acquire a thermalling glider as it transitions from head-on to side in the turn in time to take avoiding action.
I've been on both sides of the coin having unwittingly flown through Sibson whilst it was active, my bad, I assumed that the low cloudbase and wind would have precluded parachuting. I got a call from a third party, rang Sibson and apologised, no harm, no foul but my bad.
I've also just come off the winch at 800ft at the Mynd and found myself in albeit brief formation with 4 or 5 hawks, again call to Valley, error acknowledged and very apologetic. Suspect this was a Navex that went slightly astray, all I saw was Hawks suddenly going vertical and disappearing into cloud. Winch operator was more concerned than I as he saw them briefly and thought they were below me, i.e. potential tow cable conflict.

I'm not disagreeing that UK airspace is busy but F-15's have enough autonomous guidance that this should have alerted the pilots (assuming their software is correctly updated). As a GA pilot, I wouldn't dream of pottering down the mach loop because of the potential conflict.
I've got to disagree with the board's decision, yes they couldn't have seen them and be expected to take avoiding action, however prevention is better than cure and they should not have been in that airspace period. IMO, there is enough non-restricted airspace that the FJ's could have avoided this without compromising their mission.
We've had enough mid-air's where it was just wrong place, wrong time without multiplying the factors by flying through known active sites.

Just This Once... 13th Sep 2019 22:27

'' should not have been in that airspace period"
- That will be the Class G airspace you speak of. Please see above.

These parachutists are leaping through airspace that is not reserved for their personal use. The aviation charts are littered with advisory information about potential activity and in the southern part of the UK at typical FJ speeds you are never more than a minute or so from one or more of them.

I have dangled under silk, operated GA, gliders, FJ and ME aircraft (plus rotary in the test world) and sat on the Airprox Board. I remain uncomfortable that there are no effective barriers to prevent an aircraft at medium level striking people committed to a ballistic path. If the next incident happens to be an collision with say a 737, can we really sit back and say we didn't foresee the risk?



Momoe 14th Sep 2019 09:45

Accepted that class G airspace isn't exclusive, however I still believe it would have been prudent to avoid that area.

I accept that operating an FJ at 300kts in relatively congested airspace creates it's own problems, I agree with your last statement entirely, there is a clear risk and I see no easy way of mitigating that without impacting GA.

I would say that Class G airspace is a lottery with no winners, it's ridiculous that I could be thermalling, potentially in cloud with no transponder and sharing the same airspace with a FJ doing 500ft a second. I was constantly on the radio on Mynd frequency advising my (approx.) location and height so that other gliders know it's a stuffed cloud and I always believed that was sufficient, I was reassured listening to other gliders advising that they were in the same thermal albeit at a different height, if I got uncomfortable I advised that I was taking a constant heading at x altitude, got visual again and looked for another opportunity, it wasn't worth the risk.

That doesn't work with FJ's, it isn't worth the risk because as you say it will happen because the odds are lowering as sport aviation is on the increase.

just another jocky 14th Sep 2019 10:15


Originally Posted by Momoe (Post 10569729)
Accepted that class G airspace isn't exclusive, however I still believe it would have been prudent to avoid that area.

I accept that operating an FJ at 300kts in relatively congested airspace creates it's own problems, I agree with your last statement entirely, there is a clear risk and I see no easy way of mitigating that without impacting GA.

I would say that Class G airspace is a lottery with no winners, it's ridiculous that I could be thermalling, potentially in cloud with no transponder and sharing the same airspace with a FJ doing 500ft a second. I was constantly on the radio on Mynd frequency advising my (approx.) location and height so that other gliders know it's a stuffed cloud and I always believed that was sufficient, I was reassured listening to other gliders advising that they were in the same thermal albeit at a different height, if I got uncomfortable I advised that I was taking a constant heading at x altitude, got visual again and looked for another opportunity, it wasn't worth the risk.

That doesn't work with FJ's, it isn't worth the risk because as you say it will happen because the odds are lowering as sport aviation is on the increase.

​​​​​​ Not sure how many FJ fly around as slow as 300kts. We certainly didn't, unless we were on the tanker or climbing.

Agree with everything JTO says. Far too many think they can do what and when they like with no care about other users. In the military we practice Airmanship - there are too many out there who seem to be unaware of this concept. Similarly, 100+ gliders flooding an area, on one occasion recently with no notice when they changed their competition route just before launch and didn't bother updating anyone. I'm not sure these sites would be all that impressed with a few dozen aircraft from elsewhere hanging around in their overhead effectively denying them or anyone else access to the airspace.

If you regularly para drop somewhere, why not apply to obtain exclusive airspace rather than it remain open but one is advised not to fly there, which is nonsense to me.

Ewan Whosearmy 14th Sep 2019 13:16


Originally Posted by just another jocky (Post 10569761)
​​​​​​ In the military we practice Airmanship - there are too many out there who seem to be unaware of this concept.

Just not the kind of airmanship that involves not flying through parachute and gliding sites that are clearly marked on the map? Copy.

​​​​​​

just another jocky 14th Sep 2019 14:46


Originally Posted by Ewan Whosearmy (Post 10569862)
Just not the kind of airmanship that involves not flying through parachute and gliding sites that are clearly marked on the map? Copy.

​​​​​​

I make no excuses for foreign forces.

​​​​​​Copy?!? Where are you from?

Ewan Whosearmy 14th Sep 2019 14:51


Originally Posted by just another jocky (Post 10569901)
I make no excuses for foreign forces.

​​​​​​Copy?!? Where are you from?

Oh, so you mean in the *British* military? No other aviation community in the world knows what airmanship is, or practices it?

Forget about what I sound like or where I'm from.Try listening to yourself for a minute or two.

Bing 14th Sep 2019 15:13


Originally Posted by Ewan Whosearmy (Post 10569862)
Just not the kind of airmanship that involves not flying through parachute and gliding sites that are clearly marked on the map? Copy.

​​​​​​

If everyone tries to apply airmanship there's less likely to be an accident when someone makes a mistake. If you're safety strategy is to rely on someone else's airmanship you've only got one layer of cheese and you don't have any control over it.

Stitchbitch 14th Sep 2019 16:34

I seem to remember a Hawk vs Paraglider near miss that happened fairly recently?

just another jocky 14th Sep 2019 19:03


Originally Posted by Ewan Whosearmy (Post 10569905)
Oh, so you mean in the *British* military? No other aviation community in the world knows what airmanship is, or practices it?

Forget about what I sound like or where I'm from.Try listening to yourself for a minute or two.

All I said was..... The rest is you.

just another jocky 14th Sep 2019 19:07


Originally Posted by Stitchbitch (Post 10569943)
I seem to remember a Hawk vs Paraglider near miss that happened fairly recently?

It's like trying to hold a conversation with children.

Of course there have been occasions like the one you quote, but you missed my point completely. Whilst I cannot comment on foreign forces, British military are taught from day 1 to always apply good Airmanship. It does not seen the same applies throughout the civilian world when it's absolutely ok to send 100+ gliders through the overhead of a busy military airfield with no warning or R/T contact. And it keeps on happening.

Just This Once... 14th Sep 2019 21:30


Originally Posted by Momoe (Post 10569729)
I would say that Class G airspace is a lottery with no winners, it's ridiculous that I could be thermalling, potentially in cloud with no transponder and sharing the same airspace with a FJ doing 500ft a second.


Originally Posted by just another jocky (Post 10570004)
It's like trying to hold a conversation with children.

Indeed - the though of operating in cloud without a procedural clearance or a radar service is abhorrent to professional aviators. Yet some in the glider community think it is fine to gamble with their live and those of others just to have fun.

There are far too many glider pilots who like to hunt through rules, regulations and laws and any time they find the word 'glider' missing they take as approval to do what they like.

If you cannot maintain safe separation from other aircraft then you are operating illegally. There is zero point learning the rules of the air and who has right of way if you cannot see where you are going and not receiving an appropriate radar service.

just another jocky 15th Sep 2019 08:21


Originally Posted by Just This Once... (Post 10570085)
Indeed - the though of operating in cloud without a procedural clearance or a radar service is abhorrent to professional aviators. Yet some in the glider community think it is fine to gamble with their live and those of others just to have fun.

There are far too many glider pilots who like to hunt through rules, regulations and laws and any time they find the word 'glider' missing they take as approval to do what they like.

If you cannot maintain safe separation from other aircraft then you are operating illegally. There is zero point learning the rules of the air and who has right of way if you cannot see where you are going and not receiving an appropriate radar service.

Indeed m8. Meant to acknowledge your points regarding freefall parachuting but it got left out.

To add to the list; at a local airspace meeting a glider pilot representing one of the local sites acknowledged that many of their pilots will turn OFF their FLARM if they find a good thermal to prevent other glider pilots from using it to find the good thermals. It's utter madness.

Momoe 15th Sep 2019 10:46

In reply to justanotherjockey.

Please advise what the speed limitation is below10,000ft according to EASA ATS AIRSPACE CLASSES – SERVICES PROVIDED AND FLIGHT REQUIREMENTS.
Noted that you stated that you generally flew >300kts and 'practiced good airmanship'

Over to you

Fly Aiprt 15th Sep 2019 10:56


Originally Posted by Momoe (Post 10570373)
In reply to justanotherjockey.

Noted that you stated that you generally flew >300kts and 'practiced good airmanship'

Might be that military airmanship is to airmanship, what military music is to music ;-)


just another jocky 15th Sep 2019 11:11


Originally Posted by Momoe (Post 10570373)
In reply to justanotherjockey.

Please advise what the speed limitation is below10,000ft according to EASA ATS AIRSPACE CLASSES – SERVICES PROVIDED AND FLIGHT REQUIREMENTS.
Noted that you stated that you generally flew >300kts and 'practiced good airmanship'

Over to you

I suspect you are more than capable of answering your own questions.

Whilst there is an awful lot of GA traffic <10000ft, there is an awful lot of mil traffic above it. 0-10000ft is usually reserved for visual/radar circuit work (usually working a Traffic or Deconfliction Service), the lower part of ACT (many hours spent at max AoA at base height :{) in protected airspace and descending/climbing. It is usually just the training world that spends a lot of time 0-10000ft and we are all mandated to be in receipt of Traffic Service where possible. It's probably a good job most GA pilots don't ask for Traffic Service as the radar frequencies would be blocked out.

To your last point, indeed I did. You seem to be making the assumption that going fast(er) displays poorer airmanship.

Fly Aiprt 15th Sep 2019 11:24


Originally Posted by just another jocky (Post 10570390)
To your last point, indeed I did. You seem to be making the assumption that going fast(er) displays poorer airmanship.

Generally speaking, adhering to the airspace rules is considered an important part of airmanship.


Momoe 15th Sep 2019 11:26

Fair comment in that I do know the answer, as do you. My point is that I was in compliance and flying at >250kts below 10,000 isn't. (Whether the rules are robust enough for Class G is another matter entirely),

Accepted that military and GA work to different standards and yes, I fully accept that you would be better trained and have a greater skillset.

This doesn't alter the fact that we can both be compliant and and in conflict,

I'm not commenting further as I believe we both have genuine concerns about safety albeit from different ends of the spectrum.

Easy Street 15th Sep 2019 12:37


Originally Posted by Fly Aiprt
Generally speaking, adhering to the airspace rules is considered an important part of airmanship.

Generally speaking, knowing the rules is considered an important part of making snide comments about others’ adherence to the rules. Article 22 of the ANO specifically excludes military aircraft from the scope of all but a tiny proportion of the legislation (including the Rules of the Air). The military equivalent to the Rules is RA2307, which even has a note specifying visibility requirements for flight above 250kts below 10,000ft in Class G (and other classes; note 3 on page 5). You’re welcome.

just another jocky 15th Sep 2019 18:38


Originally Posted by Easy Street (Post 10570433)


Generally speaking, knowing the rules is considered an important part of making snide comments about others’ adherence to the rules. Article 22 of the ANO specifically excludes military aircraft from the scope of all but a tiny proportion of the legislation (including the Rules of the Air). The military equivalent to the Rules is RA2307, which even has a note specifying visibility requirements for flight above 250kts below 10,000ft in Class G (and other classes; note 3 on page 5). You’re welcome.

Damn, beaten to it.

Just This Once... 15th Sep 2019 19:34


Originally Posted by Momoe (Post 10570394)
in compliance and flying at >250kts below 10,000 isn't..

Somewhat predictably the Professional Pilots Rumour Network has the odd professional pilot / aircrew amongst its numbers. Strangely enough the Mil Aviation bit has a few military dudes dotted about too.

If you remained VFR perhaps you could avoid your repeated foot vs mouth collisions.

Military flying is highly regulated, studiously supervised and rigorously debriefed for each and every tactical sortie, usually with an electronic replay or 2. So yes, military fast jets do indeed operate at fast speeds. Legally and professionally.


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