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Optimal Propeller Calculator
Designed for RC Aircraft Models
The engine's maximum performance. Horsepower:
The RPM from which the torque is good and the engine can produce the given performance:
The engine's maximum RPM. Not the possible, but the safest maximum:
Important Information »»»
After manually modifying the entered data, hit the Calculate button  »»»
Optimal Propeller Configurations
Diameter Pitch RPM Perimeter Speed Thrust kg Thrust pound Thrust oz Fly speed km/h Fly speed mph Fly speed knots
14 4 9858 RPM 183 m/s 4.54 kg 10.01 pound 160.15 oz 60.1 km/h 37.3 mph 32.4 knots
13 7 9030 RPM 156 m/s 2.83 kg 6.24 pound 99.90 oz 96.3 km/h 59.9 mph 52.0 knots
13 6 9506 RPM 164 m/s 3.14 kg 6.92 pound 110.72 oz 86.9 km/h 54.0 mph 46.9 knots
12 9 9239 RPM 147 m/s 2.15 kg 4.75 pound 75.94 oz 126.7 km/h 78.7 mph 68.4 knots
12 8 9609 RPM 153 m/s 2.33 kg 5.13 pound 82.14 oz 117.2 km/h 72.8 mph 63.3 knots
11 12 9427 RPM 138 m/s 1.58 kg 3.49 pound 55.82 oz 172.4 km/h 107.1 mph 93.1 knots
11 11 9705 RPM 142 m/s 1.68 kg 3.70 pound 59.15 oz 162.7 km/h 101.1 mph 87.8 knots

OPC - Version 2.3 - Engineered by Szabolcs Füzesi and programmed by László Kapczy
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Hungarian version: Kattintson ide a magyar változathoz.