Why do I think a gyroplane-tractor should have a tail wheel chassis?
I think so:
1. The force of the pulling propeller is a stabilizing factor during the take-off run. The instability of such a chassis scheme manifests itself mainly during the run during landing.
The gyroplane, unlike the plane, should not land with run. His "trick" - landing "to the point."
2. The autogyro does not need to change the fuselage angle during take-off, like an airplane, because the angle of attack of the rotor disk does not depend on this.
You can also make a larger angle of removal for the struts of the main chassis, in contrast to the aircraft.
This will allow you not to be afraid of "tipping over".
In this case, the gyroplane will take off from three wheels at once.
3. If the gyroplane will take off from three wheels at once, the propeller can be as large as possible.
It is not limited to the top by tilting the rotor disk and changing the fuselage pitch on the take-off run from below.
4. The three-wheeled scheme with one wheel located at the rear is more stable than the three-wheeled scheme with one wheel located at the front, this was further understood by the designers of three-wheeled vehicles.
5. The location of the fuselage in the parking lot at an angle to the horizon reduces the height of the cockpit threshold, which simplifies the landing of the crew.
You do not need a “landing step", which is an accessory of gyros with a high profile.
I made such conclusions when I thought about the chassis designs of Sierva S-30 gyroplanes and other gyroplanes of that time.