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Engine Start and Ambient Temperature


Nybble
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Last night I had a shot at starting the P51 in a simulated 'hot day', where the ambient temperature was quite high, using one of the summer templates. I found that in these conditions, I was unable to get the engine started.

 

So I figured it would be a good chance to ask on what to do, as well as giving others an opportunity to share their knowledge regarding the P51D and different environmental conditions.

 

So fire away!

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Last night I had a shot at starting the P51 in a simulated 'hot day', where the ambient temperature was quite high, using one of the summer templates. I found that in these conditions, I was unable to get the engine started.

 

So I figured it would be a good chance to ask on what to do, as well as giving others an opportunity to share their knowledge regarding the P51D and different environmental conditions.

 

So fire away!

 

I love starting the P51, I've started it from -20*C to +36*C but above 36 celsius things get really, really tough. I asked this question in the P51 startup thread and got this answer from Yo-Yo:

http://forums.eagle.ru/showpost.php?p=1575710&postcount=19

 

Essentialy, he has magic fingers and can start the engine at 40*C. I'm having a lot of fun with the engine in this thing, the complexity of it is mindblowing.

<VAAF>

Virtual Australian Air-Force :thumbup::joystick::pilotfly:

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Thanks for the reply!

 

I'll be sure to give it another go using Yo-Yo's method.

 

Another thing, I am struggling to find information regarding the warm air / cold air leavers, and when you would change them. Currently I always leave them at full, and changing them in a hot / cold environment didn't seem to effect things.

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Thanks for the reply!

 

I'll be sure to give it another go using Yo-Yo's method.

 

Another thing, I am struggling to find information regarding the warm air / cold air leavers, and when you would change them. Currently I always leave them at full, and changing them in a hot / cold environment didn't seem to effect things.

 

I did it! Ran the engine off primer alone to keep mixture low, the engine almost completely started (it was running quite smooth!) on primer alone, I increased the throttle and then switched mixture to run to match the demand.

<VAAF>

Virtual Australian Air-Force :thumbup::joystick::pilotfly:

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