Zane wrote:
The CH series is neat but the little wheel is in a weird spot.
Easy enough to fix. The 701 and Savannah both have had several tailwheel versions built. The 750 can have that too, you just need to do it a little more cleverly than the Zenair factory did (by wrongly using the stock main gear moved forward).
The problem is that the CH STOL airplanes are designed to get hauled off the ground at an extremely high AOA and deck angle. Far more than a Super Cub or Maule or 180. That's the reason the rear fuselage slopes upward so harshly. So to get the same STOL capability out of a taildragger CH conversion, you would have to be able to match thae nosewheel version's huge nose-up deck angle with the taildragger version in the 3 point attitude.
Which in short means you need a very tall main landing gear, because the front fuselage slopes up fast too. Look at the CH 701 website and you will see their drawings and the difference between nosegear and tailgear versions. Take their sketch of the tailgear version and raise the nose so it is at the same place as the nosewheel version on takeoff. It is very enlightening.
I've looked at this a lot, and came up with a few possibilities. You can use a steel rod gear like the RV airplanes, mounted on the engine mount. These would be simple and elegant, but you would have very very long steel rods due to the shape of the fuselage. You could use a leaf spring flat gear like the stock CH, but made out of carbon and literally three times taller than the stock one. Or you could build a welded tube long-stroke gear like the Fieseler Storch or the Pilatus Porter.
The flat carbon spring will be easiest to do because you can use the CH mounting bracket system. The RV style will be the lowest drag and zero maintenance as well, but it is a system tied in to the engine mount. The Fieseler/Pilatus system will allow you to have the very best rough field and "Navy Arrival" STOL performance and be the lightest, but it will require more design and fabrication.