SHORT-FIELD TAKEOFF
Short-field takeoff and climb procedures may be required when the usable takeoff surface is short, or when it is restricted by obstructions, such as trees, powerlines, or buildings, at the departure end. The technique is identical to the normal takeoff, with performance being optimized during each phase. Using the help from wind and propwash, the maximum rotor
r.p.m. should be attained from the prerotator and full power applied as soon as appreciable lift is felt. VX climb speed should be maintained until the obstruction is cleared. Familiarity with the rotor acceleration characteristics and proper technique are essential for optimum short-field performance.
If the prerotator is capable of spinning the rotor in excess of normal flight r.p.m., the stored energy may be used to enhance short-field performance. Once maximum rotor r.p.m. is attained, disengage the rotor drive, release the brakes, and apply power. As airspeed and rotor r.p.m. increase, apply additional power until full power is achieved. While remaining on the ground, accelerate the gyroplane to a speed just prior to VX. At that point, tilt the disk aft and increase the blade pitch to the normal in-flight setting. The climb should be at a speed just under VX until rotor r.p.m. has dropped to normal flight r.p.m. or the obstruction has been cleared. When the obstruction is no longer a factor, increase the airspeed to VY.
COMMON ERRORS
1 Failure to position gyroplane for maximum utilization of available takeoff area.
2 Failure to check rotor for proper operation, track, and r.p.m. prior to takeoff.
3 Improper initial positioning of flight controls.
4 Improper application of power.