Here is more sound of prop then of engine really, especially with High RPM.
But thanks for the sample

Yes, we have it. but also with the drawn samples :)

Sure, with high RPM and right mixture.

Oleg,

In terms of the initial startup flames I think you have the perfect colour already, no more red required.

I attach comparison shots from the previously posted P-51 Old Crow startup against the flames in your video. You have them spot on I think.

Once the engine is running it looks like red/blue is the expected colour though. I haven't seen any yellow flames from a running engine yet and the colour chart previously posted only mentions yellow flames when the spark plugs are defective.

Would be nice to occasionally see the large lazy flames caused by an overpriming stack fire too.

Thanks:grin:

Lets not get too carried away... PLEASE -Watch the whole vid to see what happens as engine revs are increased and decreased.

http://www.youtube.com/watch?v=Xs_qt4GCj4A

Very nice find!

And a good point. It is important to note the engine RPM changes. When they occur, it affects how the fuel is burning in the engine. Variable and constant RPM's are two completely different processes happening inside the cylinder. In other words - when on constant RPM (provided we have the ideal mixture) the engine is burning fuel just like it should have, while with variable (changing) RPM the mixture and overall fuel burning process is far from ideal.

i. e. - for the very same reason there are two different fuel consumption figures in cars: one for driving in a city where throttle changes are frequent and fuel consumption is higher, and another for highway driving where fuel consumption is much lower.

Yea, a bit or red and blue would make it more realistic

Excellent find FG28_Kodiak:grin:

Oleg&Team, thanks for the update. Completely OT but a very interesting document for the future:

http://www.cockpitinstrumente.de/arc...0Air%20War.pdf

and another one:

http://www.cockpitinstrumente.de/arc...%20WW%20II.pdf