During Takeoff, The Gyroplane Pitched Up And When The Pilot Attempted To Arrest The Motion, The Backstick Forces On The Control Stick Were Greater Than Expected Analysis: The pilot was performing a post inspection test flight of the gyroplane. Prior to the flight, the pilot noticed the control stick pressures were greater than he had experienced with other gyroplanes he had previously flown. The gyroplane’s owner and a mechanic explained the gyroplane’s trim system to the pilot who then adjusted the trim to a setting he assumed would be sufficient to maintain control when the gyroplane was airborne. During takeoff, the gyroplane pitched up and when the pilot attempted to arrest the motion, the backstick forces on the control stick were greater than expected.