Rahul's RC Aircraft and other designs

A fast composite aircraft  Span : 48" Root Cord : 14" Tip Cord : 7 & 3/4" Sweep : 3/4" AUW = 74 oz This build stared much earlier but had stalled after the wings were made.. finally after delay of around 6 months the work on the fuselage was resumed.  This was also a my experimentation with different aerodynamics and materials  and construction techniques... From an aerodynamic perspective, choice of airfoil, multiple control surfaces in each wing and their inter-relatedness in the control of the aircraft, factoring the fuselage for CG considerations .. From construction, materials, use of  composite uni Carbon fiber tape as the wing spar. Kevlar hinges, refinement of my fiber glassing technique, Undercarriage mounting, thin fiberglass cowl molding There were many learnings, specially how the weight went much higher than expected due to wrong decisions and construction techniques, and how to avoid damaging kevlar hinges,  The airfoil preparation for hotwire ...

This is a build log for a 54" flying wing with a blended fuselage  Made out of Styrofoam and hotwired Wing Span -  54" Airfoil - MH 64 Root chord - 14" Tip chord - 7" The wings were hotwired out of styrofoam based on a MH 64 airfoil. The spar was a strip of 1X3 carbon fiber glued in a shallow groove on the top and bottom surface of the wing. The two strips of CF act like a I beam with the foam in between, and being very strong in tension, makes a very rigid wing. There was a central section 6.5" wide fuselage, which was blended with the wings. This would help by having more space for power train & electronics  The CFs extended into the central section , which gave more rigidity and strength and intregrated the wings and fuselage better The LE was covered with very thin fiber glass to reinforce it against dents A view of the wings and fuselage joined together.. note the space being cut for electronics and battery.. . this would lat...