continental O 200 constant speed prop [electric]
- Thread starter dynoluc
- Start date
Alaska_Rallyer
Registered User
Guys use the Aero-Matic. Not a controllable constant speed but close. Check the cessna 120-140 forum. Some of those guys are using them if i remember right.
Whoops, typo. That's www.aeromatic.com
I will retrieve my speed data from hangar today and post tonight. I had a mac7147 cruise prop before the aeromatic. My TC specifies max length of 73" for the aeromatic and i bought a F200-73 from Tarver Propellers. As i recall the cruise speeds are about the same but now the RPM's, out of the shoot, are 2620 instead of the 2390 that i got with the mac and that was what i was after because at gross wt. on an 85 degree day the 95hp needs all the boost it can get.
aeromatic prop
engine continental o 200 zenith 701 on floats
macc 71/ 46 2300 rpm 402 lbs of trust
macc 71 42 2460 rpm 439 lbs of trust
warp drive 70'' 3 blade 6 degrees at tip 2480 rpm 461 lbs of trust
all test were done same day with a digital tack and a digital scale
macc 71/46 prop is 70''
macc 71/42 prop is 71'' 1/4
macc 71/42 is 10 ++ mph faster then the warp drive at that pitch setting
macc 71/ 42 rates of climb is 450 ft per Minuit at 45 mph
warp drive 3 blade 70'' rates of climb 700 ++ ft per Minuit at 45 mph
engine continental o 200 zenith 701 on floats
macc 71/ 46 2300 rpm 402 lbs of trust
macc 71 42 2460 rpm 439 lbs of trust
warp drive 70'' 3 blade 6 degrees at tip 2480 rpm 461 lbs of trust
all test were done same day with a digital tack and a digital scale
macc 71/46 prop is 70''
macc 71/42 prop is 71'' 1/4
macc 71/42 is 10 ++ mph faster then the warp drive at that pitch setting
macc 71/ 42 rates of climb is 450 ft per Minuit at 45 mph
warp drive 3 blade 70'' rates of climb 700 ++ ft per Minuit at 45 mph
