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Im doing Something wrong with the PE2 on takeoff.


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Posted

Hello there

 

On takeoff, i'm having real difficulties in keeping the plane straight.

 

Even with full Left Rudder im veering to the right so matter how i seem to maneuver my throttle and the one time I managed to keep her straight I couldn't achieve any airspeed for take off.

 

Full fuel/rockets/gunner blister.

 

Full CEM

 

Any tips?

 

I thought It had the same management as the Yak 1?

 

Rgds

 

LoK

71st_AH_Mastiff
Posted

is your rpms 100%? prop...

  • Upvote 1
216th_Jordan
Posted

If your in the older Pe-2 you need to put your rpm to 100% manually with key-bindings.

  • Upvote 1
Posted (edited)

I always use a bit more right-engine throttle on the initial part of my takeoff roll, until the rudders are more effective. Also, in the series 87, I have to cycle both prop pitch controls through their entire range so that they both read 100% in technochat before I start taxiing.

Edited by JimTM
  • Upvote 1
=ARTOA=Bombenleger
Posted (edited)

Yeah Peshkas turning to the side uncontrollably on takeoff can 100% be traced back to RPM not being at 100%.
On the older peshka you need a different key binding, since you dont increase RPM directly but prop pitch, and yes it takes ages to achieve 100% RPM in the old Peshka. :D

Edited by =ARTOA=Bombenleger
  • Upvote 1
Posted

It could be caused by the way the prop levers work in the Pe-2. I have made the following observations during a typical startup sequence with my setup (I have six levers - two for throttles, two for prop, and two for mixture) while starting a quick mission with the engines off:

  • Hit "0" (zero), to switch to dual controls
  • Move all six levers - observe they all work correctly
  • Hit "RCtrl 1" to start the left engine
  • When left engine runs:
    • adjust power with left throttle lever
    • adjust mixture with left mixture lever
    • and now the interesting part: move the left RPM lever and observe that during the engine startup sequence it had reset itself to inverted mode. By moving it now to full RPM, I will fix this and get the left RPM ready for takeoff
  • Do the same steps for the right engine (start the engine with "RCtrl 2", of course), and you will be all set

If you correct the highlighted issue you should be able to take off straight.

  • Upvote 1
Posted

Excellent, I'll take all your views and advice on board, I knew it was the nut behind the wheel that was causing the issue.

 

I'll try again :)

 

L

Posted (edited)

Update.

 

Ive managed to get in the air with full rpm an 20pc flaps....just.

 

I still feel im missing something compared to the AI, but once im up im really enjoying her, in VR she's great.

 

Bugger all fire power though.

 

Id love a allied heavy fighter (other than the il2)

 

I love the cockpit space.

 

I just cant bring myself to go axis!

Edited by OrLoK
ShamrockOneFive
Posted

The Russians didn't really have a heavy fighter ... beyond the Pe-2/Pe-3 anyways. Not like the Bf110 or the P-38 anyways. The prototype for the Pe-2 was probably the closest thing and then they turned it into more of a fast bomber/dive bomber which is very much in keeping with Russian aviation doctrine of the time.

 

The strike firepower is good with a pretty decent bombload considering the size/speed of the aircraft. The forward guns are, as I understand it, mostly for defensive purposes and a lighter weight and less draggy option than having a forward turret.

=TBAS=Sshadow14
Posted

you are supposed to taxi with props on min rpm/pitch Same as in 111,88,pe's & most planes with prop control

Set props to 0-10% for taxi then @ runway set to 100%

Posted

Orlok I don'use flaps for takeoff with pe2, but 20% left yaw and 30% right aileron trim are useful, besides 100% rpm

  • Upvote 1
=TBAS=Sshadow14
Posted

should not need aileron trim unless you got a crosswind. 
just rudder trim plsu lots of actual rudder.

AND USE DIFFERENTIAL BRAKES to help keep it straight under 150kph

Posted (edited)

you are supposed to taxi with props on min rpm/pitch Same as in 111,88,pe's & most planes with prop control

 

Set props to 0-10% for taxi then @ runway set to 100%

The trouble is with the older PE2 (35 I think off the top of my head) it takes forever to increase the rpm,therefore I wouldnt recommend increasing rpm at the runway threshold with the earlier model. I always wait the 2 min after starting to increase the rpm before I taxi out.

 

Regards

Edited by Haza
Posted (edited)

The trouble is with the older PE2 (35 I think off the top of my head) it takes forever to increase the rpm,therefore I wouldnt recommend increasing rpm at the runway threshold with the earlier model. I always wait the 2 min after starting to increase the rpm before I taxi out.

 

Regards

 

I always use 100% prop (high RPM, fine pitch) to taxi on either model Pe-2. Some people find it easier to taxi with low prop values (low RPM, coarse pitch) though. I think that in real life, taxiing with coarse pitch is hard on the engine.

Edited by JimTM
Inkophile
Posted

I always use 100% prop (high RPM, fine pitch) to taxi on either model Pe-2. Some people find it easier to taxi with low prop values (low RPM, coarse pitch) though. I think that in real life, taxiing with coarse pitch is hard on the engine.

 

Not to mention that it causes more torque, less thrust, and less airflow over the airfame thus reducing rudder effectiveness.

JG1_Vonrd
Posted

Yeah Peshkas turning to the side uncontrollably on takeoff can 100% be traced back to RPM not being at 100%.

On the older peshka you need a different key binding, since you dont increase RPM directly but prop pitch, and yes it takes ages to achieve 100% RPM in the old Peshka. :D

 

Had the same problem. I had prop pitch mapped to an axis in my stick but it didn't work on the early PE2. Have to map buttons or use the keypad. Also, it seems the Bf-110 and the PE2 pitch are opposite. I had the 110 button forward for increase RPM and the PE2 was opposite... gets confusing.

 

The controls setup for this game needs improvement. ROF was / is MUCH better. You can set up DETAILED curves for EACH plane. BOS, I set my sensitivities (all you can do... a generic curve) to FW190 and I screw up what I would like for I-16 and other planes.

 

Why have different mappings for what is, essentially and practically, the same thing..i.e. pitch trim. Why have separate maps for "horiz stab" and pitch trim?

 

Can ROF control mapping be implemented into BOS? 

Posted

 

 

Why have different mappings for what is, essentially and practically, the same thing..i.e. pitch trim. Why have separate maps for "horiz stab" and pitch trim?

 

Because different planes have different types of trim/stab, with different times for actuation, and so on. But I do agree that the controls menu could have a little love, and having a exclusive curve for each plane is also a great idea.

Posted

Set RPM to 100% and problem solved!

Inkophile
Posted

Had the same problem. I had prop pitch mapped to an axis in my stick but it didn't work on the early PE2. Have to map buttons or use the keypad. Also, it seems the Bf-110 and the PE2 pitch are opposite. I had the 110 button forward for increase RPM and the PE2 was opposite... gets confusing.

 

The difference is that on the Pe-2 you don't set the blade pitch, but the engine RPM. Higher RPM = finer (less) pitch.

 

On the Bf 110 however you have disconnected the constant-speed governor when you manually set the pitch, that means you aren't setting any target engine RPM. Instead you directly control the blade pitch, where 0% is as fine pitch as possible (higher RPM, higher thrust), and 100% is as coarse pitch as possible (lower RPM, less thrust).

 

Might feel a bit confusing, but that is why it is different.

  • Upvote 2
=TBAS=Sshadow14
Posted

As above not all planes are same prop systems
i would have said something earlier but i dont have any evidence :dry:

Boaty-McBoatface
Posted

The difference is that on the Pe-2 you don't set the blade pitch, but the engine RPM. Higher RPM = finer (less) pitch.

 

On the Bf 110 however you have disconnected the constant-speed governor when you manually set the pitch, that means you aren't setting any target engine RPM. Instead you directly control the blade pitch, where 0% is as fine pitch as possible (higher RPM, higher thrust), and 100% is as coarse pitch as possible (lower RPM, less thrust).

 

Might feel a bit confusing, but that is why it is different.

Great explanation - never knew this.

71st_AH_Mastiff
Posted (edited)

Trim 20, flaps 15, rpm prop 100, pull yolk back. Ease throttle forward keeping rudder control.

Edited by 71st_AH_Mastiff
Posted

so much contradictory advice :) eeep!

 

On coconuts server i just span and span, im going to test all of your advice.

 

ill report back.

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