Would not the learning time and license cost be reduced if the configuration of the helicopter was symmetrical, such as the intermeshing synchropter?
The symmetry of the two counter-rotating rotor disks eliminates the need for a tail rotor. This reduces the demands on the pilot in coordinating the cyclic, collective and pedal. The yaw function should be similar to that of a plane.
In 1948 the symmetrical Kaman K-125 was flown by a housewife with only 2 hours of ground instruction and 36 minutes of dual instruction.
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