Request: Long duration audio files of all aircraft engine sounds

[Sky_Wolf]

Anybody know of long duration audio files for IL2 aircraft engine sounds? Anybody willing to record ~20 minutes worth of a P-39 cruising with occasional switches in RPM? How about a Bf-109F? I have no access to IL2 for the near-/mid-future and would really appreciate being able to hear the sounds of IL2 birds in the background while working. Willing to pay.  

[DBFlyguy]

50 minutes of uninterrupted real sounds:

 

https://www.youtube.com/watch?v=L3ZXAw9ijo0

[Sky_Wolf]

Not bad but that's too discontinuous for me. I need to hear the engine up close for a long period of time, i.e. external camera recording of a cruising Bf-109 in-game for 20 minutes.