Parachute Failure

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BlueZed
Airman
Posts: 15
Joined: 09 Jul 2012, 03:21
Location: Canberra, Australia

Parachute Failure

Post by BlueZed »

Hi All,

I am late to this fantastic simulation but enjoying it immensely.

Is there a variable somewhere to reduce the odds that my parachute will fail to open? In the last four bail outs ... only one proper parachute deployment. In my readings of the actual Battle, I don't recall that this happened 75% of the time. :)

Cheers

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stickman
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Joined: 05 Nov 2004, 13:17
Location: Oahu, Hawai'i

Re: Parachute Failure

Post by stickman »

Not by users. I am pretty sure this is coded somewhere. Buddye might be able to code more realistic chances.

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PV
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Posts: 5188
Joined: 13 Nov 2004, 08:21
Location: Lost in the tundra, Canada

Re: Parachute Failure

Post by PV »

There is a coded limit, according to the 2.10 release notes, that chutes will
not open if baling below 400 feet, to compensate for the almost instant
inflation of the silk in the sim.

Furthermore, we researched the stats on RAF fighters hit in Aug 1940, though
we were discussing two different things - the number of AI bale outs, and
the survival rate of player bale outs. With the former, I think we more or less
disregarded those riding down their aircraft to ditch, and of the ~25% of
pilots who survived according to the stats, we were shooting for at least that
many to bale, with some subsequent fraction of chute failures. But as Buddye
observed:
"The pilot bail out numbers are so very random. Sometime very low sometime
in the 50% range as it is layers of random outcomes that get involved. Direct
tuning is very hard and almost impossible to get a wanted percentage."

I cannot remember what was settled on for the latter, and I can't find it right
now. I 'm sure, though that we didn't settle on a 75% failure rate, so I would
guess you were just unlucky. Anyway, here is a section of the discussion:
"Combining the numbers (not percentages) for bomber and fighter downing,
we get 26/101 surviving, or 26%.

"The stats don't reveal how many pilots might have baled but not survived, nor
how many survived by ditching, so we're still somewhat in the dark. I believe it
is correct that those surviving by ditching is non-zero, but with these numbers
the percentage of those who attempted baling and did not survive could easily
exceed those who did."

"It appears that someone with lots of time and ambition might be able to dig out
the exact fate of many of the 115 losses in August at this site
http://www.the-battle-of-britain.co.uk/Diary/August.htm
and tally the ditchings, crash landings and bale outs. A quick survey of a few days
reveals survivors doing some of each. Also several mentions of surviving a bale out
but with severe injuries, or subsequent drowning, but "baled out but failed to survive"
doesn't reveal if it was burns or chute failure or a bad landing."

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BlueZed
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Joined: 09 Jul 2012, 03:21
Location: Canberra, Australia

Re: Parachute Failure

Post by BlueZed »

Thanks very much for the swift and detailed response.

Yes I was unlucky and a sample size of four is not really valid either. I just thought "oh not again!" :) I was playing an instant action mission tonight and was limping home damaged. I thought twice about bailing out and decided the odds were better if I tried to land.

Thanks again.

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Buddye
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Joined: 30 Jul 2005, 12:59
Location: South East Texas, USA

Re: Parachute Failure

Post by Buddye »

The chances for the chute opening is random controlled by a the selection of random numbers.

Are you trying to bail out at 400 feet or below? Chute will not open at 400 feet or below.

You have just hit on a failed chute by the luck of the draw.

I would estimate the failure would be a bit less than 25% given a large enough sample.

As I test, I just flew 10 missions in Instant Action Lone Bomber and Lone fighter at 5000 feet. I bailed out each time at the beginning of the mission and the results was:

Chute opened -- 10
Chute Failed ---- 0
Buddye

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Trumper
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Joined: 17 Feb 2006, 18:06

Re: Parachute Failure

Post by Trumper »

:) Does aircraft damage/pilot damage trigger a failure of the parachute.If you had been in combat maybe damage to the chute could be a gamble.

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