The Gyrocopter can, of course, fly.

Gyrocopters always end their move hovering at very low altitude, and may be charged by enemy troops in the same way as flying creatures. If the Gyrocopter can't fly for any reason, it can't move. If a Gyrocopter has to flee when it cannot fly, it will be removed and counts as destroyed (but won't crash). Note that the Gyrocopter does nor suffer the -1 penalty to its pursuit and flee moves and so will travel the full 3D6 inches.