BumblerBee
lvl.4
Flight distance : 639764 ft
Norway
Offline
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I just received my set of blades today and did an idle-run comparison. Started Mavic's engines. Let them run idle without taking off. Pushed the left stick left, then idle, then right. Then pushed right stick left - idle - right - idle - up - down.
Mavic would apply differential to the engine output in the idle mode, so it's possible to hear how the old and the new blades performed in these modes.
Overall - the amplitude (loudness) was the same, but the pitch was different, lower on the new ones. Noting the RPM readings, the new blades resulted in 10-15 lower RPM (readings x10):
Idle old: 190
Idle new: 175
Yaw left old: 219
Yaw left new: 207
Yaw right old: 219
Yaw left new: 207
Bank left old: 195
Bank left new: 180
Bank right old: 195
Bank right new: 180
Pitch forward old: 200
Pitch forward new: 189
Pitch backward old: 180
Pitch backward new: 165
Backward differential resulted by far the quietest operation.
If weather allows, will be taking the bird for a flight this week-end. |
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