#### Jean Claude

##### Junior Member

- Joined
- Jan 2, 2009

- Messages
- 2,409

- Location
- Centre FRANCE

- Aircraft
- I piloted gliders C800, Bijave, C 310, airplanes Piper J3 , PA 28, Jodel D117, DR 220, Cessna 150, C

- Total Flight Time
- About 500 h (FW + ultra light)

Here is my simulation of the Rrpm increasing and forward speed at sea level for a 100 hp gyrocopter with a total weight of 450 kg. Rotor 8.3 x 0.22 m pre-launched at 220 rpm. With no wind.

You can see that it claims

(With coef of rolling of the wheels estimated of 4% and initial thrust of the propeller estimated of 420 lbs)

It takes 12 seconds, thus it is possible to calculate roughly for a headwind of 10 KTs (5 m/s) the rolling distance would be decreased by 5 * 12 = 60 m

You can see that it claims

**150 m**(With coef of rolling of the wheels estimated of 4% and initial thrust of the propeller estimated of 420 lbs)

It takes 12 seconds, thus it is possible to calculate roughly for a headwind of 10 KTs (5 m/s) the rolling distance would be decreased by 5 * 12 = 60 m

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