Go Back  PPRuNe Forums > Non-Airline Forums > Private Flying
Reload this Page >

Aeros, with or without ?

Wikiposts
Search
Private Flying LAA/BMAA/BGA/BPA The sheer pleasure of flight.

Aeros, with or without ?

Thread Tools
 
Search this Thread
 
Old 8th Mar 2017, 15:05
  #1 (permalink)  
Thread Starter
 
Join Date: Oct 2002
Location: Job Centre
Age: 74
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Aeros, with or without ?

Assuming my Class 2 medical renewal goes OK, I'll be continuing aero instruction at my local school.

Now CAA strongly advise aeros to be committed with parachute attached to person. And of course all gliding is carried out with parachute - the courses I took at Lasham a few years ago got me intimate with wearing the things.

I have already had a couple of aero sessions, however, I have never seen the VERY experienced and capable instructor at my local school troubling himself with a parachute - indeed I have never seen one on the entire airfield (been going there for more than 20 years).

Without getting too specific, the aircraft they use is a lovely, very capable and reasonably new, high wing, tandem monoplane and I suppose you could argue that by the time any ageing pilots have extricated themselves it would all be over.

So - parachutes for aeros?
I'm inclined to raise the topic with them - but what's a good strategy?
sunday driver is offline  
Old 8th Mar 2017, 21:38
  #2 (permalink)  
 
Join Date: Jun 2002
Location: Wor Yerm
Age: 68
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Safety equipment has to be usable to justify its presence. Wearing parachutes in an aircraft that is near enough impossible to get out of is pointless. But wearing one in an aircraft you can get out makes sense. But again, this comes with caveats. When it comes time to hit the silk you will almost certainly be leaving your aircraft in anything other than a normal attitude, with an abnormal airflow, a high rate of descent and quite likely with rotation about more than one axis. Once free you will have to find and pull the ripcord. Easier written than performed.

And the question you have to ask, is why are you are having to jump? Broken aircraft, mid-air collision or disorientation? The reason I ask it that if you think about these things beforehand it makes it easier to make the decision to jump. When you do jump, there is no lower limit. Make sure you can get out quickly by practicing before every flight. Do not wait for canopies to come off. Release them by all means but always release your SEAT harness immediately after. Once out you will need to find the ripcord as fast as possible. A good technique is to curl up into a ball, look for it and with both hands pull. The rest is luck although you can get training.

How you raise the subject, not a clue I'm afraid. How about asking outright?
Piltdown Man is offline  
Old 8th Mar 2017, 23:47
  #3 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 14,573
Received 422 Likes on 222 Posts
It was mandatory for RAF Bulldog crews to wear parachutes for all flights. During a real aircraft abandonment after a UAS QFI couldn't recover from a high rotational spin, he ordered his student to "Jump, jump, jump!"

The student forgot to jettison the canopy iaw the emergency drills and instead opened it by sliding it back, as for a normal egress. After he jumped the aircraft promptly came out of the spin. The QFI watched him land in a field then flew back to base!
ShyTorque is offline  
Old 9th Mar 2017, 05:47
  #4 (permalink)  
 
Join Date: Feb 2003
Location: Oxford
Posts: 2,042
Likes: 0
Received 0 Likes on 0 Posts
Interesting point about not waiting for the canopy to go as that's not what cadets are taught for the Tutor - instead it's a sequence of actions designed to get the canopy to go, THEN release the harness.
tmmorris is offline  
Old 9th Mar 2017, 07:24
  #5 (permalink)  
 
Join Date: Jun 2002
Location: Wor Yerm
Age: 68
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
But the question is, have they actually jumped from an aircraft?
Piltdown Man is offline  
Old 9th Mar 2017, 08:05
  #6 (permalink)  
 
Join Date: Feb 2017
Location: Away from it all
Posts: 62
Likes: 0
Received 0 Likes on 0 Posts
For aeros practice at altitude - parachute yes
For serious work overhead an airfield or in competition, you will probably be too low for a parachute, but then, you should not be getting into serious trouble at such low heights - those snags are sorted at altitude..
For structural failures, the same applies.
Philoctetes is offline  
Old 9th Mar 2017, 08:06
  #7 (permalink)  
 
Join Date: Nov 2006
Location: Down south
Age: 69
Posts: 363
Likes: 0
Received 0 Likes on 0 Posts
When **** hits the fan, even without skydiving experience many pilots managed to bail out of, aerobatic a/c with quick jettison canopies. All but one i am aware of saved their lives, one of them unfortunately hit the tail. I would never fly an aerobatic machine without parachutes. Bailing out is far better than land a tailwheel on rough ground, high approaching speeds around 80 kts, and the almost certainty of tipping over is very riski business, when tipping over the neck is likely to be exposed and then fire cannot be ruled out....In the likelyhood of a possible major malfunction in the air, be prepared to sacrifice the aircraft to save your life, and please do practice regularly idle engine emergency landings over airfield...
markkal is offline  
Old 9th Mar 2017, 15:10
  #8 (permalink)  
 
Join Date: Jan 2005
Location: Kent
Age: 61
Posts: 523
Likes: 0
Received 0 Likes on 0 Posts
Modern, emergency, parachutes deploy really quickly - see: https://youtu.be/2oJngucEac4
In the interview afterwards Rob says he made the decision to bail at ~500'.

Glider pilots wear them for 2 reasons:
- There is a significant risk of collision when many gliders are crowding into one thermal
- The seats are bl***ing uncomfortable without them
OpenCirrus619 is offline  
Old 9th Mar 2017, 15:46
  #9 (permalink)  
 
Join Date: Dec 2001
Location: GA, USA
Posts: 3,206
Likes: 0
Received 23 Likes on 10 Posts
Maybe you shouldn't fly aeros in a plane you cant get out of.....
B2N2 is offline  
Old 10th Mar 2017, 04:03
  #10 (permalink)  
 
Join Date: Jan 2004
Location: Canada
Age: 63
Posts: 5,202
Received 133 Likes on 60 Posts
I always have a parachute when I do aeros. More importantly I rehearse the bail out drill before every flight. It is that practiced muscle memory when everything is going to shyte that will save you, otherwise the parachute is just an expensive seat cushion.
Big Pistons Forever is online now  
Old 10th Mar 2017, 18:46
  #11 (permalink)  
 
Join Date: May 2002
Location: Melbourne, Australia
Posts: 1,165
Received 16 Likes on 12 Posts
Originally Posted by sunday driver
Without getting too specific, the aircraft they use is a lovely, very capable and reasonably new, high wing, tandem monoplane and I suppose you could argue that by the time any ageing pilots have extricated themselves it would all be over. ..... SD
Something like a Super Decathlon, I guess. I'm aware of two incidents where chutes were successfully used, unfortunately only one person in each case and both had 2 pob.
I was involved with a flying school that considered chutes but it wasn't practical for two reasons. Allowing time for the student to eject the door then get out followed by the instructor resulted in a quite high minimum altitude for our operations. Secondly, the chutes ate too much into the useful load.

As someone said, no use it being an expensive cushion - must have the discipline to plan to use it.

Flying low level aeros solo for a competition or display in a Pitts etc I'd wear a chute.
djpil is offline  
Old 10th Mar 2017, 18:58
  #12 (permalink)  
 
Join Date: Jun 2014
Location: ask me tomorrow
Posts: 119
Likes: 0
Received 0 Likes on 0 Posts
I always wore one in a Super D and even a Citabria. I know of glider pilot that had a mid-air with a Hawker, and was able to bail out successfully. The Hawker also limped to an @ss puckering but successful landing at the closest airfield. So, I'd fall back on the old adage- "it's better to have one and not need one, than need one and not have one".
Geosync is offline  
Old 10th Mar 2017, 19:07
  #13 (permalink)  
 
Join Date: Aug 2008
Location: La Rochelle.
Age: 48
Posts: 542
Likes: 0
Received 11 Likes on 6 Posts
As a pilot and an ex-skydiving instructor with 1500+ jumps, no hesitation in saying wear one. BUT..know how to use it and don't rely on being able to...
clareprop is offline  
Old 10th Mar 2017, 19:33
  #14 (permalink)  
 
Join Date: Jun 2006
Location: Canada
Posts: 1,306
Likes: 0
Received 0 Likes on 0 Posts
WITH!, {I'm talking from experience, but not going to tell you about it!}
clunckdriver is offline  
Old 10th Mar 2017, 20:41
  #15 (permalink)  

Avoid imitations
 
Join Date: Nov 2000
Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 14,573
Received 422 Likes on 222 Posts
I always have a parachute when I do aeros. More importantly I rehearse the bail out drill before every flight. It is that practiced muscle memory when everything is going to shyte that will save you, otherwise the parachute is just an expensive seat cushion.
I totally agree.

During my time as a QFI a new order was published, mandating that due to excessive wear of the covers of parachutes caused by climbing in and out of the aircraft (Bulldog), pilots were henceforth to unstrap from the 'chute before exiting the airframe on the ground, then carefully lift the chute out. We were then required to carry out an emergency egress drill once a month, IIRC (when we were allowed to keep the 'chute on, obviously).

I refused to comply, knowing that regularly unstrapping from the seat and the 'chute was building a scenario where someone might possibly unstrap from the 'chute in the air in the heat of an emergency and exit without it. I continued to exit with my 'chute ON.

A QFI of another unit was later lost in a tragic LOC accident when he abandoned his aircraft and fell out of his 'chute when it opened. The accident report concluded that he had inadvertently unlocked the QRB at some stage in the proceedings.
ShyTorque is offline  
Old 14th Mar 2017, 13:08
  #16 (permalink)  
Thread Starter
 
Join Date: Oct 2002
Location: Job Centre
Age: 74
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Thanks all for the opinions and experience - particularly about pre-flight mental and actual rehearsal.
sunday driver is offline  
Old 14th Mar 2017, 19:33
  #17 (permalink)  
 
Join Date: Jan 2017
Location: Warwick
Posts: 197
Likes: 0
Received 0 Likes on 0 Posts
Interestingly, it is not mandatory to wear a parachute in a glider, passengers who are large and heavy are quite often flown for weight/space reasons without a 'chute. However, even though the cost and maintenence of them is high most flights are taken with a parachute, the risk of collision is higher especially on a cross country flight because any glider thermaling attracts others and you don't see them all.
A low wing aircraft with a decent canopy jettison should be easy to exit but a high wing aircraft that is out of control would be more challenging, all of that is assuming you have enough height for the canopy to open.
Deltasierra010 is offline  
Old 15th Mar 2017, 07:34
  #18 (permalink)  
 
Join Date: Sep 2004
Location: Down at the sharp pointy end, where all the weather is made.
Age: 74
Posts: 1,684
Likes: 0
Received 3 Likes on 3 Posts
The alternative is a secondary restraint system, as fitted sometimes to the Cessna Aerobat. As structural failure in this type is very unlikely and egress from the door, even with the quick-release hinges, is problematic, you're probably better staying with the aircraft for a forced landing. If you lose control at sufficient height in a C152 to be able to bale out, then LET GO and the a/c should recover. If you're too low for it to recover, then you're not going to get out anyway.
TheOddOne is offline  
Old 16th Mar 2017, 12:32
  #19 (permalink)  
 
Join Date: Oct 1999
Location: Den Haag
Age: 57
Posts: 6,251
Received 332 Likes on 185 Posts
A QFI of another unit was later lost in a tragic LOC accident when he abandoned his aircraft and fell out of his 'chute when it opened. The accident report concluded that he had inadvertently unlocked the QRB at some stage in the proceedings.
Yes, and then we went back to exiting whilst wearing it again.

...with parachute attached to person
They're generally more effective that way
212man is online now  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.