Great idea Sani!! But I think needs a little more fine tuning. From what I understand, the smoke only appeared when the mixture was rich, a situation that occured near maximum boost. I don't think this was an issue for early to mid-war 109s but as the engine became more powerful for sure. Not only did the operating altitude increase (therefore air density decreased) but with power came increased fuel flow. Therefore at higher altitudes (in which many of the 109s and 110s were operating) and at full throttle (possibly with MW-50 or GM-1 boost) the aircraft were running at a richer mixture producing the smoke trails. The issue was related to the DB605 engines specifically but I am not surprised that at this stage of the war such fine tuning of engine performance was overlooked in the quest of raw performance.
Also note that many of these reports (by Luft and USAAF pilots) of these trails are from 44 onwards. I haven't read a report from prior to this period (correct me if I am wrong) but this would link into the idea that they only appeared as power and altitude increased.
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Topic: 109 & 110 exhaust smoke (Read 12749 times)
