Author Topic: G-loading discrepancy?  (Read 586 times)

Offline Charge

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G-loading discrepancy?
« on: April 17, 2012, 03:36:18 AM »
Is it just me or has anybody else ever noticed a strange behavior in G-loading in turns? 

E.g. if you fly a high wingloading plane and get into tail of lower wingloaded plane in relatively high speed and the LWL plane goes into a high load break turn and as you follow with a lag turn you still completely black out. As you ease up on turn and regain vision you notice that you have lagged significantly outside of his turn arc AND in the process are you also lagging behind in distance!

So how the heck is it possible for that LWL plane to pull that kind of G without outright killing the pilot in the process or at lest putting him in a sustained G-lock state? If the starting speed for the planes are nearly the same and you almost instantly hit 6Gs on turn and tunnel vision so any turn tighter than that has to generate more Gs than your 6Gs? And if it doesn't how come you will lag behind even after the turn? I thought that in high speed the pilot G tolerance is the deciding factor and that is conveniently the same for all in AH.

Or is it just incorrect assessment of initial situation or explanable by turn geometry? I do not recall having any good film of such situation but I recall that it does not really help because G loading effects are not shown in films.

-C+
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Offline Chilli

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Re: G-loading discrepancy?
« Reply #1 on: April 17, 2012, 04:19:30 AM »
I am sure there is some accurate formula somewhere that shows the HTC has it right, but it sure seems like what you say is true and almost certainly tied to certain aircraft.

It appears that the decision to choose certain aircraft, also trains your pilot / upgrades pilot G suit.  :huh 


What I have noticed and can replicate very easily:

Once a pilot has blacked out and regains consciousness, he is more likely to black out again with even less G forces at work.   :headscratch:  Anyone want to debate that?

Offline FLS

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Re: G-loading discrepancy?
« Reply #2 on: April 17, 2012, 07:18:43 AM »
Charge without film there are too many possible variables. Geometry explains being further back since you lagged and flew a greater distance in the same time. A presumably slower max speed LWL aircraft would likely slow down faster also from the same high initial speed.

Offline --)SF----

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Re: G-loading discrepancy?
« Reply #3 on: April 17, 2012, 07:23:09 AM »
Is it just me or has anybody else ever noticed a strange behavior in G-loading in turns? 

E.g. if you fly a high wingloading plane and get into tail of lower wingloaded plane in relatively high speed and the LWL plane goes into a high load break turn and as you follow with a lag turn you still completely black out. As you ease up on turn and regain vision you notice that you have lagged significantly outside of his turn arc AND in the process are you also lagging behind in distance!

So how the heck is it possible for that LWL plane to pull that kind of G without outright killing the pilot in the process or at lest putting him in a sustained G-lock state? If the starting speed for the planes are nearly the same and you almost instantly hit 6Gs on turn and tunnel vision so any turn tighter than that has to generate more Gs than your 6Gs? And if it doesn't how come you will lag behind even after the turn? I thought that in high speed the pilot G tolerance is the deciding factor and that is conveniently the same for all in AH.

Or is it just incorrect assessment of initial situation or explanable by turn geometry? I do not recall having any good film of such situation but I recall that it does not really help because G loading effects are not shown in films.

-C+


He chopped throttle, went into a high break turn to shed speed, and significantly cut into to your circle while you maintained speed and blacked out.

Offline FLS

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Re: G-loading discrepancy?
« Reply #4 on: April 17, 2012, 10:53:56 AM »
He chopped throttle, went into a high break turn to shed speed, and significantly cut into to your circle while you maintained speed and blacked out.

That is possible SF but chopping throttle is not required for that outcome. If it's not a descending turn you won't stay at 6G and the LWL aircraft will likely have better turn performance as the speed drops.

Offline icepac

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Re: G-loading discrepancy?
« Reply #5 on: April 17, 2012, 11:03:56 AM »
The film viewer needs to add the G data to the track next to the speed data in the display.

I once sent in a film to WB describing exactly what happened and they were able to find out from data on the track that he had blackouts disabled.

While it was correct, I will assume that 96% of accusations of this type would be squashed before they were lodged if we could have the g data show up in films.

Offline Trukk

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Re: G-loading discrepancy?
« Reply #6 on: April 17, 2012, 11:31:41 AM »
@ Charge:  It's all about speed, flim it and I bet you are going faster than the bandit. More speed = more G's and it doesn't take much to make a significant difference.

@ Chilli: I believe you are right and that would be by design as in real life you become fatigued and your G tolerance diminishes.

Offline hitech

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Re: G-loading discrepancy?
« Reply #7 on: April 17, 2012, 11:43:46 AM »
Charge: Film your fights and watch the film. Also remember if you hit G loc, you controls when to center while you recovered.

HiTech

Offline Murdr

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Re: G-loading discrepancy?
« Reply #8 on: April 17, 2012, 11:46:53 AM »
I came to the same conclusions as FLS before I read his replies.  A combination of geometry and relative E bleed in a max turn could make it appear as you describe.