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View Full Version : BF109 and FW190 engine bug?



XyZspineZyX
07-13-2003, 04:22 PM
when i try to fly these online (every model) in some
servers,
they always overheat just as i
lift the ground and then the engine dies,

and this when having max open radiator
and 90-100% in throttle

has anyone else had this exsperiens

<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-13-2003, 04:22 PM
when i try to fly these online (every model) in some
servers,
they always overheat just as i
lift the ground and then the engine dies,

and this when having max open radiator
and 90-100% in throttle

has anyone else had this exsperiens

<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-13-2003, 04:24 PM
It sounds like your not adjusting the prop pitch, and your overreving the engine.

Da Buzz
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<center>
http://www.elknet.pl/acestory/foto1/anderson3.jpg

XyZspineZyX
07-13-2003, 04:46 PM
I agree with BuzzU


+ tip dont turn on the WEP when on full power ...put it 50% or less and then engage WEP ...OR engine is dead

by

XyZspineZyX
07-13-2003, 04:46 PM
dont the Bfs have atomatick pitch control?
and this problem occures after about 10 seconds
of 90-100% as i accelerate the plane and lift!
I dont experience this on all servers.

what pitch do u use on take off?

<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-13-2003, 04:47 PM
kcicmir wrote:
- I agree with BuzzU
-
-
- + tip dont turn on the WEP when on full power
- ...put it 50% or less and then engage WEP ...OR
- engine is dead
-
- by
-
i dont use WEP



<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-13-2003, 04:51 PM
I havent flown the Bfs that mutch since il2
where I just flew the Bfs most of the time.
But maybe their engines have gotten more sencitive
in FB

because if i get it up in the air (70% throttle) and away it always
over heat almost directly when I give 100% throttle
(no WEP open radiator) in dogfight and using prop pitch (not to overreving engine)

please give me some tips on how to operate it
to get the best performance out of it


<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

Message Edited on 07/13/0304:00PM by fjuff79

XyZspineZyX
07-13-2003, 04:56 PM
The only thing that can blow an engine that fast, is overreving it. Watch the tach on the 109. If it goes up past 3000 rpm. It's about to blow. Keep it at 2500 rpm.

Da Buzz
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<center>
http://www.elknet.pl/acestory/foto1/anderson3.jpg

XyZspineZyX
07-13-2003, 04:59 PM
IMO take off without manual prop pitch is rather slow and dangerous,cuz prop pitch isn`t managed correctly.

You need manual pp for taking off.

While on runway set pp to 100%(really should be 0%).Take off with open radiator and 100% throttle(mix 120%).

Like you said the engine is gaining RPMs fast after reaching some alt.

If the RPMs are too high,engine makes a sound as if it is suffocating at the moment(very high tone/i/smilies/16x16_smiley-tongue.gif ).Anyway you should always know it by observing the gauge(30 is enough).You should reduce prop pitch(around 80%) to keep the engine below 3000RPM(30 on the gauge).

Cruising RPM:2100.

Oh and at about 2000m set mix to 40%(60-70% in winter).

"degustibus non disputandum"

<center>http://carguy.w.interia.pl/tracki/sig23d.jpg

<center>"Weder Tod noch Teufel!"</font>[/B]</center> (http://www.jzg23.de>[B]<font)

XyZspineZyX
07-13-2003, 05:15 PM
carguy_ wrote:
- IMO take off without manual prop pitch is rather
- slow and dangerous,cuz prop pitch isn`t managed
- correctly.
-
- You need manual pp for taking off.
-
- While on runway set pp to 100%(really should be
- 0%).Take off with open radiator and 100%
- throttle

(mix 120%).doesnt it just go to 100%?
-
- Like you said the engine is gaining RPMs fast after
- reaching some alt.
-
- If the RPMs are too high,engine makes a sound as if
- it is suffocating at the moment(very high tone/i/smilies/16x16_smiley-tongue.gif ).Anyway you should always know
- it by observing the gauge

(30 is enough)?

.You should
- reduce prop pitch(around 80%) to keep the engine
- below 3000RPM(30 on the gauge).
-
- Cruising RPM:2100.
-
- Oh and at about 2000m set mix to 40%(60-70% in
- winter).
-
fuel?


and I thought the Bfs handeled the most CEM automatically


by the way is this for all Bfs (except E) and FW190Ds



Message Edited on 07/13/0304:19PM by fjuff79

XyZspineZyX
07-13-2003, 05:22 PM
Yo!

Keep the prop pitch at 100%, but don't give it FULL throddle. You can forget about the mixture settings on the 109's as the Luftwaffe Pilots never used it anyway. I have used the 109 exclusively in FB and it makes no difference. Once you are in the air, switch to automatic pitch (if in the F - G Series), or manually switch it to 90, 80, and then down to 50/60 once a decent speed a acheived.

http://ca.geocities.com/mikiebactor/myme.jpg

XyZspineZyX
07-13-2003, 05:22 PM
30 is 3000 rpm. Are you going past this?

Fuel is fuel mixture.

Da Buzz
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<center>
http://www.elknet.pl/acestory/foto1/anderson3.jpg

XyZspineZyX
07-13-2003, 05:43 PM
ptefuller wrote:
- Yo!
-
- Keep the prop pitch at 100%, but don't give it FULL
- throddle. You can forget about the mixture settings
- on the 109's as the Luftwaffe Pilots never used it
- anyway. I have used the 109 exclusively in FB and it
- makes no difference. Once you are in the air, switch
- to automatic pitch (if in the F - G Series), or
- manually switch it to 90, 80, and then down to 50/60
- once a decent speed a acheived.



Maybe it was all auto in RL but here manual pp gives much better results.Even if CEM isn`t finished right now,mixture control does matter.Set mix to 0% and see what heppens. I`ve flown VOW from the start and it is obvious to me,that I won`t return home if I`ll keep the mix at 80%.Only in F series it`s not a problem(very long range).

"degustibus non disputandum"

<center>http://carguy.w.interia.pl/tracki/sig23d.jpg

<center>"Weder Tod noch Teufel!"</font>[/B]</center> (http://www.jzg23.de>[B]<font)

XyZspineZyX
07-13-2003, 06:41 PM
ptefuller wrote:
- Yo!
-
- Keep the prop pitch at 100%, but don't give it FULL
- throddle. You can forget about the mixture settings
- on the 109's as the Luftwaffe Pilots never used it
- anyway. I have used the 109 exclusively in FB and it
- makes no difference. Once you are in the air, switch
- to automatic pitch (if in the F - G Series)

isnt 100% what u should switch to when wanting automatic pitch in Bfs?
or can u chose it as a specified button?


what about the 109K how does it work?



- manually switch it to 90, 80, and then down to 50/60
- once a decent speed a acheived.
-


thanks for the tips /i/smilies/16x16_smiley-happy.gif

<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-13-2003, 06:52 PM
use Shift+0 (zero) to change between manual and auto.


edit..Be careful when you go from auto to manual, because it starts at 100%. Make sure you have throttle pulled back, or the motor will blow in your flying level. The only time you want 100% on manual is for takeoff/landing, and making a very steep climb.

Da Buzz
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<center>
http://www.elknet.pl/acestory/foto1/anderson3.jpg


Message Edited on 07/13/0310:55AM by BuzzU

XyZspineZyX
07-13-2003, 11:51 PM
fjuff79 wrote:
- when i try to fly these online (every model) in some
- servers,
- they always overheat just as i
- lift the ground and then the engine dies,
-
- and this when having max open radiator
- and 90-100% in throttle
-
- has anyone else had this exsperiens

I think you're gunning the throttle upon takeoff, pushing from idle to 100% in a very short period of time. By gunning the throttle, you're creating too much waste heat for very little acceleration. I don't have problems with my procedure with gradually pushing the throttle as I accelerate the plane down the runway. I have my prop pitch at 100% and with a closed radiator and a heavy bomb load, I don't have overheating problems.



Message Edited on 07/13/0310:52PM by ColoradoBBQ

XyZspineZyX
07-14-2003, 12:48 AM
Several possible problems with the 109's


Emil ... the 109E has no auto prop pitch so if you takeoff with pitch at 100% it will over rev and blow


Emil .. E7 .. the boost on the E7 can not be engaged below 6000 metres without blowing the engine


Later 109's with MW50 boost. The boost on these 109's cannot be engaged or disengaged with throttle open without blowing the engine. On these aircraft always shut throttle before engagining or disengaging the MW50.

XyZspineZyX
07-14-2003, 06:33 AM
I had no idea you had to be THAT carefull with the Bfs engine, I thought they had automatic CEM control (except Es)
and the only thing u had to touch was the throttle on these planes.

Its time to get to know these planes.


thanks for the tips /i/smilies/16x16_smiley-happy.gif

<center>http://mysite.freeserve.com/Endodontics/sigs/SigFS.jpg?0.6257472972436022 </center>

XyZspineZyX
07-14-2003, 12:32 PM
Couldn`t it be that you are taking off too quickly, before warming up your engine a bit? That can very well damage any engine, because of the sudden heat... at least the use of open radiators suggest this.

Warm up you engine to 50-60 celsius at least before taking off. Try to use auto rad, with open rads you might overcool the engine.

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