Pulling with a Honda CRF150R with optimized prop and ReDrive

[Shepherd Thiel]

My numbers are all based on factory stock engine specs, redrive calculations and prop thrust calc.

Factors 5% power loss due to ReDrive + 15lbs (Should be less than 3%)

58"/28" 3 Blade: 3.01hp@1000rpm=43.95lb/[email protected](Stall) *Also engine idle speed*
14.8hp@1700rpm=131.06lb/thrust@45mph
27.9hp@2100rpm=193.85lb/thrust@55mph
36.7hp@2300rpm=224.71lb/thrust@61mph(Calibrated Max MPH)
66.2hp@2800rpm=333lb/thrust@74mph
81.4hp@3000rpm=395.61lb/thrust@79mph
85.5hp@3050rpm=408.91lb/thrust@80mph(Engine@Full Load@12706rpm)
121hp@3432rpm=517.75lb/thrust@89mph(Engine Redline)

Honda CRF150R: 9.73lb-ft@9800rpm 21.61hp@12500rpm Redline 14300rpm (50lb Engine Weight)

X 4.166 ReDrive=85.52hp@3000rpm(Includes 5% loss)
Redline/ReDrive@Hub=3432rpm

Aircraft weight is 500lb/gross.

 

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