Quote:
Originally Posted by spaceflightmeow
Holy cow, FL-mike, you win the thread. Excellent data. What is the significance of most of the energy being at the prop frequency? My guess is that it prop noise would be acoustic noise, penetrating through the drum-head firewall and also beating down on the canopy.
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The blade pulses on the windscreen and exhaust pulses on the floorboards?
I think each cylinder fires every 180 degrees, so that is the same as a two blade prop blade frequency. 2*2700/60
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Mike W
Venice, FL
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS, L3 Lynx NGT-9000
N164WM
N184WM reserved (RV-8)....finishing kit in progress. Titan IOX-370
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