Nice!
its really deceiving, cause its so smooth and quiet,
but once leaning near to get a tach read, i found myself frozen for a moment,,, suddenly realizing where my hands were,,, you could see no sign of a prop! guess it was spinning so fast lol
my no load (prop-disc) is basically a failure, it just sucks current.
and since my optical tach is only marginally reliable (indoors) anyway,
i'll be discontinuing it and relying solely on the Eagletree for rpm.
Note: ive still no Rm measuring device.
im annoyed, but... all this testing was largely for fun anyway so,
also, i didnt record any Io without the disc attached this round, so
all i really have is the 3s/gws8040 data from my gear.
aside from Rm, accurate Io, and my scale reads (which ive long suspected to be an oz. or so off) i'd say we're in the same ballpark.
Im gonna Have to build sumthin fer diz baby!
gws8040D 3s610 20C Rhino (wattmeter/globee/scale)
8.8A, 10.4v, 9960rpm ? 459g/17.901 oz.
8.3A, 10.1v, (rpm n/a) 407g/15.873 oz.
EagletreeV3 recorder file transcription
(3s610 w/gws8040)
02:25.00 10.28v, 8.90A, 10302rpm
02:28.00 10.18v, 8.71A, 10204rpm
02:32.00 10.08v, 8.53A, 10013rpm
02:35.00 10.00v, 8.40A, 10107rpm
02:39.00 9.95v, 8.40A, 10013rpm
02:43.00 9.90v, 8.34A, 9920rpm
02:48.00 9.88v, 8.28A, 9920rpm
02:48.00 9.88v, 8.28A, 9920rpm
Daves data
Tgy 2730 13T 24g dLRK Wye (V2)
Kv 1434 (17212r/12.08v) Io = 0.49 Rm = 0.168
Kv 1441 (11701r/8.12v) Io = 0.36 Rm = 0.168
GWS 8040 HD Hex 620 3S
10311 rpm @ 10.31v/8.42a 544 grams 19.2 oz/thrust 80.8% Efficient
GWS 8040 HD Hex 1050 3S
11290 rpm @ 11.76v/10.06a 656 grams 23.1 oz/thrust 78.6% Efficient