109 elevator trim

[BGs_Ricky]

And what about the g-forces the pilot and structure would suffer when going to full up nose trim very quickly in a high speed dive?

I spoke with a Typhoon pilot (Sqn. Leader D.L Stevenson) who told me that he often had to trim nose up quick to recover from high speed dives when attacking with rockets, and that made him nearly black out every time.

There's also a passage in Clostermann's The Big Show when he had to apply a lot of nose-up trim while diving like crazy from high alt chasing a 109, he lost consciousness immediately and when he came back to his senses he had a nosebleed and his radio was useless from the high g's. After landing he saw taht his plane was quite warped...

So I guess that in game whe can quicky apply full trim at high speed we shoild also feel quite some effect on the pilot and airframe.

Surely pilots would adjust trim even in a fight, but generally you apply trim in small amounts, you rarely put full trim at once except if your live is really depending on it, when pulling out of a dive for example...

[robtek]

Ok, i have to admit, 4 quarter turns a second is a bit optimistic , but then, the video did show a really relaxed handling of 1 quarter a second.

A pilot, knowing its ride, would knew exactly how much trim to feed for the expected result and could move the wheel at least 2 to three quarters a second.

He would also exactly know how much to use and stay in a fighting condition.

[SlipBall]

Originally Posted by robtek

Ok, i have to admit, 4 quarter turns a second is a bit optimistic , but then, the video did show a really relaxed handling of 1 quarter a second.

A pilot, knowing its ride, would knew exactly how much trim to feed for the expected result and could move the wheel at least 2 to three quarters a second.

He would also exactly know how much to use and stay in a fighting condition.

I think that's very true, maybe in time I will as well. It's a bit touchy right now for me, seems to require micro adjustments. The times that I have used it was for take off, and landing approach I have not used it in combat yet

[Al Schlageter]

Rounding off the numbers given to 12 degrees (11. of trim and 6 turns (5.75) of the wheel, one gets 2 degrees of trim for every revolution of the wheel.

It takes ~4 seconds to make a full revolution of the wheel. Don't believe me, try it. Each grab is a 1001, 1002, 1003, 1004. If the pilot is in a hurry he might get 3 seconds per revolution of the wheel.

[robtek]

Yes, we are missing the physical feedback, lucky us!!

[Crumpp]

A trim wheel set up like the Bf-109 or Spitfires is generally very intuitive and precise.

For some reason cranks, like the P47 series are the exact opposite. Every aircraft I have flown with a crank style trim feels mushy and takes longer to get in trim.

[Robo.]

Originally Posted by BGs_Ricky

So I guess that in game whe can quicky apply full trim at high speed we shoild also feel quite some effect on the pilot and airframe.

Surely pilots would adjust trim even in a fight, but generally you apply trim in small amounts, you rarely put full trim at once except if your live is really depending on it, when pulling out of a dive for example...

I agree completely, BGs_Ricky. This is part of a bigger issue that is leading to virtual pilots doing things that were not possible to real life guys - no black out for the pilot, no structural damage for the aircraft etc. And that is certainly not 'right' in a simulator I guess.

There is some 109-related information on this page:

http://www.virtualpilots.fi/feature/articles/109myths/

Search for 'trim' as a keyword, quite interesting in many aspects.