Rahul's RC Aircraft and other designs

This is the build of a large coro delta It is made out of 3mm and 2mm coro..  Wing Span - 1200mm Root Cord- 765mm Tip Cord-250mm Sweep -485mm Dry weight - 1020gms Motor ;3630 1100kv, 40 amps, 3S 2200mah, 2 x 12gms servos CG -280mm from nose tip (at 15%) With a total wing area of 609000 sq mm and a AUW of 1200 gms the wing loading is at 6.4 oz/sqfeet, which is in the region of slowflyers.. this combined with a not too small Reynolds number for the avg cord, translates to  good stall characteristics. It is quite a big aircraft. The underside is 3mm coro and the topside is 2mm coro..  The spar is a  tapering XPS foam wrapped in fiberglass. This makes the spar very strong.. in fact this spar is the only load bearing structure in the whole aircraft. For gluing coro to coro, fevicol SR (a rubber based solution) was used and epoxy was used for foam to foam or foam to coro or wood.  The TE was also taped up after gluing. The controls are through full l...

    LARGE POWERED SPAD   A large aircraft made completely out of  coro and PVC pipe ·           72” span, coro wing, Jedelsky airfoil, wooden spar, detachable wings, no dihedral ·           PVC pipe fuse, wing and tail section mounting plates ·           750KV, 12X4 prop, 3S ·           Aileron, elevator, rudder, throttle This large plane is made completely out of coro and PVC pipe. The wings were two piece and has plug-in aluminum joiners. The tail unit (horizontal and vertical) is one piece which can be bolted on to fuse by four nuts. The whole thing can be assembled in field very quickly. It can fly slow. Turns are tight and controlled. The jedelsky  airfoil  did provide high amounts of lift.. and also lot of drag.. that is my son Abhiroop holding th...