View Full Version : ME 262 throttle woe

11-30-2005, 05:23 AM
I've been playing the excellent Schwalbe campaign by HotSpace and have been having some hellish bother with engine flame-out, especially on landing approach.
I read in another thread that this may be related to joystick throttle vagaries and it's actually safer to control the throttle effectively using the keyboard. I've tried to disable the throttle on my Wingman, but got had no joy http://forums.ubi.com/groupee_common/emoticons/icon_confused.gif. Can anyone help with this, or tips to avoid flame-outs at low rpms?

11-30-2005, 05:25 AM
throotle early jet must be much carful increase decrease slow. if do to quick engine blow up/catch fire

11-30-2005, 05:36 AM
I have been throttling extremely gently. For instance, I'll reduce throttle to 25% on approach, and after a minute, with NO further input on the throttle, one of the engines will flame.

I'm wondering if the throttle needs a clean..

11-30-2005, 05:43 AM
if your joystick caused changes in the throttle level, that would appear on screen. If you say you have 25% throttle and one of the engines flames, the only reasonable explanation is that you decreased the throttle to 25% for only the one of the two. You may have pressed toggle or select for one of the engines.

11-30-2005, 05:49 AM
Nope, I definitely have all engines selected. The fluctuations in the throttle level is only in the order of +-2% at the most, which I wouldn't have thought could cause flame-out.
I find myself having to cut the engines entirely and glide in, which isn't ideal!

11-30-2005, 05:53 AM
throttle change by self + 2 - when just leave if so sound joystick problem. maybe try throotle less sensitive in joystick option?

11-30-2005, 06:02 AM
How can I change my throttle sensitivity?

11-30-2005, 11:43 AM
Originally posted by rawheid_rex:
I've been playing the excellent Schwalbe campaign by HotSpace ...

Glad you like it... http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif

I have not had any issues with flame-out on approach. I usually reduce the throttle to about 10% and after the speed drops with gear out & flaps down, I increase it to about 35% for the final leg in case I need to go around.

I usually chop the throttle completely after crossing the runway threshold as there is not enough thrust to take off again anyway. Landing the 262 is pretty much a 100% commitment. http://forums.ubi.com/images/smilies/59.gif

11-30-2005, 12:56 PM
To un-assign throttle, assign your elevator input to throttle then re-assign it to elevator.

Before you do that, grap FoolTrottel's IL2Sticks utility (link under my signature picture) and use it to apply maximum filtering to your throttle axis and see if that helps. It should smooth out the irregularities in the axis input.

Also be aware that you must move your throttle VERY slowly in the 262. After initial spool up for take off, I've always gone with the principal of 5% change, 5 second wait, 5% change, 5 second wait. In flight, I set to about 80% and leave it there the whole time.

11-30-2005, 01:01 PM
I generally don't increase or decrease the throttle more than 15% or 20% at a time. At the freakin most. http://forums.ubi.com/images/smilies/16x16_smiley-indifferent.gif From idle on the ground you can hit about 30% or so straight away but these engines aren't FADEC operated, they're completely manual and fuel control and airflow have to remain within relative tolerance. Keep experimenting till you find what works for you (much like the actual pilots who flew these things http://forums.ubi.com/images/smilies/16x16_smiley-very-happy.gif).

11-30-2005, 01:29 PM
Above about 50% "Power" you can jam the throttle as you like, but that is only for the high end. Don't do that below 50%. Its really easy, in fact I think its the in-cockpit RPM guage that you need to watch. If I recall, the RPMs should be quite decent before you jam the throttles. Otherwise move throttle very slowly. What happened in real life I think fuel gets spilled inside the jet and catches fire. For YP-80 things are even harder. Changing throttle at any point can cause flameout (but thankfully not fire) although you can restart the jet engine. For the -80, just leave the jet on max and fly. I saw it posted that was a correct procedure for that plane at that early time of development, possibly.

11-30-2005, 01:47 PM
As others have said move the throttle very slowly.
Your problem is probably your joystick.
Logitech sticks are notorious for being unreliable after relatively short time frames.I would try another stick, borrow one would be the best idea, then you would know for sure.
Cheers, Ibis.


11-30-2005, 02:08 PM
Thanks for all the input, guys http://forums.ubi.com/images/smilies/16x16_smiley-happy.gif
I took my joystick apart and replaced the throttle pot, which improved things slightly, but I then noticed that movements of the stick, however slight, would cause fluctuations of the throttle as much as 30% http://forums.ubi.com/images/smilies/16x16_smiley-surprised.gif

Looks like time to buy another stick!

Anyone have any suggestions around the 30-40 GBP mark?

11-30-2005, 02:13 PM
Saitek or Thrustmaster in that price range, CH Products if you can afford more.

11-30-2005, 02:13 PM

11-30-2005, 06:58 PM
on my saitek i found that on start up if you open the throttle fully THEN press the starter button, it accelerates up to 100% on its own without bursting into flames http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

11-30-2005, 07:58 PM
Somewhere I read 262 pilots landed with the engines turned off on final approach.
When I'm landing, I shut off the engines just before I touch down.Landing speed being 250KPH just before I touch down and shut her down. Works great http://forums.ubi.com/images/smilies/16x16_smiley-wink.gif


11-30-2005, 08:22 PM
Originally posted by Taylortony:
on my saitek i found that on start up if you open the throttle fully THEN press the starter button, it accelerates up to 100% on its own without bursting into flames http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif TaylorTony the blabber . . . . .

11-30-2005, 08:28 PM
It could be that your final approach speed is insufficient to cool the jets? If so thats a very nice little touch, i'm off to try it actually