Rahul's RC Aircraft and other designs

 This is a build log of  vacuum bagging Here the vertical fins of a swept  flying wing are being vacuum bagged.. The same technique can be used for any part.. (just that this is the one I documented) Of the different methods, this one uses a thin PET sheet as the finishing surface. This is different from using a peel ply. materials:- thin PET sheet, mold release wax, vacuum bag/ polyethylene sheet, vacuum bag sealing tape, some plastic pipe, vacuum pump/ brake bleeding pump. The foam blanks are readied.. making sure that surface finish is good and smooth and the surfaces are cleaned .. it needs to be understood that ANY surface imperfections more than the thickness of the FG cloth will be visible after glassing.. therefore though this step may seem trivial, it is quite important The pet sheet is cut in the shape of the part to be glassed, one for each side. At this stage it is not important for it to be absolutely accurate, I keep  around 1cm excess all around......

 Javelin is a high aspect ratio swept flying wing. It is designed for high performance  and uses modern airfoil and construction techniques.  The planform of the wing is as above with inboard flaps and outboard elevons. It has a fuselage pod and wing tip vertical fins,  Span : 1700 mm Root and Tip cord : 175 mm Sweep : 22.5 degrees or 353mm Flaps : length 240 mm, cord 30 mm, starting 25 mm from root at the TE Elevon : length 340 mm, cord 30 mm, starting 3 mm from tip Airfoil : HS 522 standard thickness and camber. It is low drag , low Re airfoil . The details and the .dat file can be found here  https://www.aerodesign.de/english/profile/profile_s.htm#hs522 Twist : 4 degrees AUW : 840 gms  Electronics : 2212 1400kv motor, 30A esc, 9X4.8 prop, 4 x 9gm MG servos, 3s 2200mah bty. (the electronics used are more from what I have, rather than the most suited) Wing Area : 297500 sq mm, 461.13 Wing loading : 9.36 oz/sq ft, and Wing cubic loading : 5.2 CG ...