Can't keep LaGG-3 straight on runway

[mikeglaz]

I'm trying the Take-off and landing, calm mission.  Even though it was much more difficult to keep the plane straight during take-off with the Simplified Controls turned off I was able to do it.  However, when I turn off Engine Auto Control and Radiator Assist I am unable to keep the plane straight down the runway.  I push all the way to the left on the yaw as well as left on the roll.  The only thing I'm not able to do is adjust the prop pitch for some reason.

[6./ZG26_5tuka]

Sounds strange. Can you test it under EXPERT difficulty? Did you check your controll mapping? Did you check your trim? (Lagg-3 has trim for all controll surfaces, ie elevator, rudder and aileroun).

 

Takeoff in Lagg-3 should be pretty much straight forward literally.

[Bando]

Prop pitch should be fully forward. Why can't you adjust that?

I think this (prop pitch) is the problem.

[TP_Jacko]

Since the recent patch I get the feeling the torq is stronger. I don,t know what engine control does. But you need to

Steadily increase the power and be using the rudder to keep the nose straight. If you slam the throttle to 100% you will have problems as the LaGG has no tail lock.

[andyw248]

Yes, prop pitch is the key here. Check in the key mappings that prop pitch really works, and then set it to high RPM before taking off. The only other reason I can think of is that your rudder isn't centered when in neutral; you may want to check that as well (or select auto rudder).

[Weegie]

As well as aforementioned prop pitch if the LaaG is anything like the LA 5 then its also worth checking all the trim settings and trying at neutral initially.

 

I could not get the LA5 off the deck with the same problem, however, the default trims were all over the place.

 

Once the trims were all set to neutral she was much better behaved.

 

Still a bit of a handful but controllable with gentle throttle opening until she had gathered some speed.

 

I haven't check LaaG trim but its worth a shot

[mikeglaz]

I keep spinning out in circles if I increase the throttle.  I set the prop pitch key mappings but they don't do anything. I steadily increase the throttle and once I get to about 55% I can no longer stop the plane from veering to the right.

Edited December 12, 2015 by mikeglaz

[TP_Jacko]

Mikeglaz what are you using to control the rudder.

[mikeglaz]

I figured out the problem.  I had my RPM's at 0% the entire time.  I did not realize RPMs were controlled separately from the throttle - I thought they were one and the same.  Kinda like in a car...

[LukeFF]

With the Russian fighters, it is best to just keep the prop RPM at 100% all the time. Interviews with veterans from the war confirm that is exactly what they also did.

[Libel]

So people know: 

Throttle controls the manifold pressure, which is the amount of air entering the engine. Higher pressure results in better power.

RPM is the speed the crankshaft is rotating, which is controlled by gears in a car. Prop pitch in an aircraft is much like the gearbox, except you have analogue control rather than a fixed number of gear 'positions'.

So, much like a car, you will damage the engine of most aircraft by running it at both high manifold pressure and RPM.

[=FI=Blue2]

Don't see anybody mentioning it yet here, but the LaGG also has a lockable tail wheel.

Prop pitch 100% and gradually increasing power will do the job, but it's also simplified with the wheel locked.

Along with left rudder pressure, hold some back pressure on the stick for the early part of your roll, to hold the tail wheel down & keep her straight.

Then once you have some speed, let off both gradually.  Takes some practice to get a feel for it all, but you'll get it down soon.

[LukeFF]

 

 

Don't see anybody mentioning it yet here, but the LaGG also has a lockable tail wheel.

 

Nobody's mentioned it, because it doesn't have one. 

[Trooper117]

lol!