The Dynaflite Bobcat is a 78" (2 Meter) sailplane with a turbulated wing fitted in the high-wing position, and a "Tee" tail. It is an Aileron/Elevator ship, with an optional rudder (which I did incorporate into the completed model) that is supposed to fly well in low wind conditions due to the turbulators on the wing, and general light-weight construction. The aircraft is supposed to be fitted with a tow-hook (removable) for winch or bungee launching, and is obviously intended to be useable for thermal flight. The tow-hook won't be incorporated into the finished model. At least, not to start with. I have always wanted a glider to fly at the cliff when lift conditions were light, and this might be it. For high-lift days I'll have to switch to something else, or perhaps add a chunk of lead on the CoG of this glider!
The wing is in three panels -- a 30" central panel which sits horizontal, and two outer panels at 24" each, with less than two degrees of dihedral per panel. Ailerons are fitted to these outer panels, and I did investigating the possibility of incorporating flaps in the inner panel, but decided not to do so in the end.
As designed, the ailerons are controlled with a single servo mounted amidships, and actuated by two long, flexible pushrods that reach out into the outer panels of the wing. I replaced this with two small strong servos, one in each outer wing panel.
One area of concern is the rear of the fuselage. It looks very weak and in combination with the T-tail design may be a point of failure. I glassed the bottom of the fuse (very inexpertly), and incorporated CF tow as part of a fin-strake in the effort to strengthen this area. This resulted in a heavier-than-designed tail, so I had to compensate with a large lump of lead in the nose. Good thing I wasn't planning to look for any thermals!
