Torque effects on takeoff

[Kaz]

I know that torque effects will be increasing in AH2 for those planes that experienced it with everything functioning properly.

Basically now in AH we can jam the throttle to full power and use a bit of rudder and maybe a little aileron to stay straight until takeoff.

But I remember reading somewhere that the P-51D on takeoff used 1/3 to 1/2 throttle. Anymore throttle and the torque would be too much to counteract.

I'm guessing that this applied to more planes and not just the Mustang.

So will this aspect of power/prop related torque be modelled in AH2 to be as close to the real thing as possible?

And if so then how much would this affect the amount of runway used for takeoff?

Just some questions from a not - in - the - know WW2 flight novice.

[Swoop]

Originally posted by Kaz
I know that torque effects will be increasing in AH2  

How do you know this?  Source?

[Karnak]

Swoop,

Pyro said that (IIRC) the P factor was impacting too far out on the wings in the current model and would be fixed in the new model.  

The end effect is that the apparent "torque" would be greater.

[Swoop]

Ah right.  Cool.  

Damn I wish we had all this in a FAQ somewhere so peeps like me didn't miss it.  hint hint HT.

[Puck]

Originally posted by Swoop
Ah right.  Cool.  

Damn I wish we had all this in a FAQ somewhere so peeps like me didn't miss it.  hint hint HT.

*snort*

I don't advise holding your breath.

[Waffle]

I believe they fixed this torque issue with "auto take-off"

[F4UDOA]

I hope HTC doesn't overdue the torque model as so many wish.

Do not forget that these A/C had trim tabs that were very effective in dealing with takeoff torque.

Also many of the A/C that are currently modeled with combat trim in AH did not have the ability to use trim in flight IRL.

For instance the Me109 and FW190 had no cockpit adjustable elavator or rudder trim in the cockpit. This makes life very easy in AH but was not the case as this capabilty did not exist.

I beleive the La-7 had the same lack of trim wheels.

[ccvi]

Originally posted by Karnak
Pyro said that (IIRC) the P factor was impacting too far out on the wings in the current model and would be fixed in the new model.

I don't think Pyro said that. P-factor is called P-factor because it's an effect of the prop. Wings don't have anything to do with it.

What is going to be changed are the effects of prop wash on the wings (and probably other parts of the aircraft). Those contribute almost everything to the bad behaviour of the plane. P-factor doesn't, especially at slow speeds, e.g. at take off.

[N8DOG]

I don't think Pyro said that. P-factor is called P-factor because it's an effect of the prop. Wings don't have anything to do with it.

that is correct. In MOST, airplanes there are 4 forces that cause an airplane to turn left. #1 Torque (motor) #2 P-Factor, 1 prop blade gets more bite out of the air than the other one (most noticable in a climb) #3 Gyroscopic Precession (reacts 90* ahead of where pressure is applied) #4 Spiraling slipstream  (air from the prop striking the vertical stabilizer)

[Kaz]

The spitfire MKXIV was another fighter that used about half throttle on takeoff to lessen torque.

[jodgi]

I REALLY have trouble believing that any WWII planes didn't have elevator trim wheels or handles in the cockpit. But I haven't checked this myself. The aerodynamical forces change a lot from slowflight to full speed.  The strain on the pilot flying a WWII bird without elevator trim would be pretty much intolerable and unnecessary.

Is it for real F4UDOA?

[metronom]

I REALLY have trouble believing that any WWII planes didn't have elevator trim wheels or handles in the cockpit

The Polikarpov I-15 and I-16 havn't got no trim wheels.

Sailor

[Wmaker]

Originally posted by F4UDOA
For instance the Me109 and FW190 had no cockpit adjustable elavator or rudder trim in the cockpit.B]

Both of these planes definately had an adjustable elevator trim.

[NHawk]

Originally posted by N8DOG
that is correct. In MOST, airplanes there are 4 forces that cause an airplane to turn left. #1 Torque (motor) #2 P-Factor, 1 prop blade gets more bite out of the air than the other one (most noticable in a climb) #3 Gyroscopic Precession (reacts 90* ahead of where pressure is applied) #4 Spiraling slipstream  (air from the prop striking the vertical stabilizer)

At last someone who understands flight.

Except, gyroscopic precession affects any plane without a nose wheel during takeoff. So, with most of the planes in AH it kicks in  (or should kick in) just as the tail wheel comes up off the ground.

And, just as a side note. Anyone using ailerons to "steer" a plane without a nose wheel is looking for disaster. These planes should be "guided" with rudder and brakes only.

[MRPLUTO]

I thought the Bf-109 had no rudder trim, requiring the pilot to keep his feet on the rudders applying some pressure at all times.

Bf-109s did have elevator trim.   I read that pilots would trim their 109s to be nose light so that the planes were more responsive (less mushy) in combat.  This required the pilot to keep his hands on the stick to fly level, but it was a choice.

  MRPLUTO VMF-323 ~Death Rattlers~ MAG-33