Rahul's RC Aircraft and other designs

 This is a small and simple Prandtl glider Span- 890mm, Root cord = 115mm, Tip Cord = 30mm, Sweep = 24 degree Will try out as a chuck, DLG and tow line It is a fairly simple contraction. The camber drops to 0 degree at 70% of span, and at the tip the camber is 0 and the washout is 9 degrees The topside.  The underside The fuselage is a just a stick to enable a small weight to be put way forward to get the CG right A side view. Notice the washout in the closer tip, the camber at the root  

  A 1500mm size thermal ePowered plank wing. Composite construction Medium AR, low WL .. Elevons moved outboard to enable inboard wing generate max lift during slow thermalling.    Dimension Sketch Airfoil BW050209 Wing area 39.43 sq dm CG @ 10% SM = 100 mm, @ 15% SM = 87 The wing was hotwired out of high density EPS (thermocole). Built-up full length CF spar. Tow width on top 18mm, bottom 24mm. The spar has a 5 x 3 mm vertical balsa compression webbing buried below the CF tow (full length).. The built-up spart is at 33% of cord. The routed 5mm groove for the vertical compression webbing visible. Also you can see the shallow trough which has been sanded for the CF tow cap of the spar. A picture of the wing core with the CF tow for the spar caps. A view of the laid out built-up spar This one shows the vertical webbing Built up spar ..all elements in position and weighed down …. awaiting for the epoxy to cure the wing with the spars in place.. is is...