Rahul's RC Aircraft and other designs

 This is a meter span flying wing designed for fast and aerobatic flying.. and it lives up to it The wing is hotwired out of high density EPS. The airfoil is PW51 at the root and PW51 at 120% thickness at the tip. There is no washout incorporated in the wing tip while cutting .. though there is a overall washout in the tip which we talk about latter The dimensions for foam cutting are It has one full length CF spar (4x1 mm) embedded on the top surface. The two halfs are but joined and the joint area has a 3 inch wide FG reinforcement. The motor mount is a ply and balsa embedded into the foam The elevons are 3 mm balsa. Cord 10mm near the root and 40mm at tip. This gives a natural washout at the tips The wing is covered with monokote .. (new technique) The pod top cover is made out  Electronics : 2 x 9 gm servos, 2207 2300kv motor (quad), 5x5x3 prop, 30A esc. I fly it on 3S Molicell Li-ion CG is at 190mm from LE apex She is FAAAAST .. very agile .. great flyer Flight video...

 Based on Loki.. and offsprings are bigger and better 😀 It is hotwired EPS foam vacuum bagged with fiberglass, CF .. It has a 16mm UD CF tape laid on top and bottom surface acting as a built-up spar. Dimensions   Airfoil :- TL16 110% thickness Initial CG (@7% SM) is at 20cm from LE apex Highlights 1. It has a 3x1mm CF strip slotted and epoxied into the LE...  prevent dinks 2. The bottom hinged elevons also have a top mylar gap seal ...  reduce drag  3. The servos, servo horn and push rods are embedded and completely enclosed within the wing. The  push rods run through tunnels with the wing, and come out just near the TE ..... reduce drag. 4. The battery and electronics are aligned longitudinally in the center of the fuselage top. It is just a 5cm strip.... keeping maximum surface of the wing clean for lift .. and reduces drag. 5. The vertical fins are 2mm balsa , carbon fiber, fiber glass composite . They are strong/rigid, light, and thin...... less d...

 This is a 1 m combat wing. It is hot wired out of EPS foam (thermocole.. high density).  Dimensions Airfoil is TL56, thickned to 120% It has one 1x5 mm CF strip embedded vertically in the underside to act as a spar.  The two wing halfs are butt joined and the motor mount is also a cross beam joining the two halfs  The elevons are 3 mm balsa covered with monokote The end plates made out of coro , and the flutes are vertically aligned A strong fishing line has been glued along the whole LE to prevent dings ..  The whole aircraft is lightly misted with 3M77 spray and then covered with tape (colored tape).  Servos are mounted on slots on slots cut on the top surface, keeping in mind bind free linkage geometry and as close to the RC as possible.  Electronics (electronics , powertrain, battery choices are greatly governed by what is available with me.. sometimes may not be optimum) Power train - 2206 2400kv Quad motor, 40A ESC,  driving a 5x5 tri blade...

A swept flying e-powered wing.. this is loosely based on the "Sparian" with changes to the wing and fuselage .. and with e-power. The dimensions : Wing area = 26.85 dm sq, 416 in sq AUW = 650 gms  CG @10% SM = at 148 mm  of RC from LE Wing loading at 650 gms AUW = 7.93 oz/sq ft, WCL = 4.66,  stall speed =  22.2 kmph The wing is hotwired out of XPS (Blucore) and skinned with 80gsm fiberglass (one layer). It has a 10mm wide CF built-up cap spar on top and bottom, across the whole span. It is reinforced with a 30mm wide CF built-up spar to upto 230 mm from root, both top and bottom Fuselage is a simple box made out of coro with bamboo skewers inserted into  the flutes at certain areas for strength.  The wing is mated to the fuselage by two 8mm nylon bolts and then the edges are hotglued. This makes secured seating and at the same time can be disassembled, in case required.  Also vortex generators have been added. 5 sets of VG,s 70mm apart, extending, in t...

Flying wing DLG  The details are : The airfoil is HS130 Span : 870 mm Root Cord : 196mm Tip Cord : 147 AUW : 125 gms The wing area is 149205 sq mm which translates to       wing loading of 2.74 oz/sq ft, and a wing cubic loading of 2.17,  The templates for hotwiring the wing.  The hotwired wing . Note the fuselage is a 4mm CF rod passing through the root. There is a 3mm balsa root which is in the center of the two wing halves and the CF fuselage rod also goes through it.  The faint line at 30% cord is where the a 3x1mm CF strip will be embedded to act as a spar A view of the wing tip. It gives you a perspective of the airfoil shape.... the foam tore of at the extreme tip trailing edge during handling The tail is made out of 3mm depron stuck onto the CF fuselage spine Also the 3x1mm CF strip which acts as a spar is visible The fuselage with a piece of scrap EPP foam attached tp the CF fuselage spine. This helps in holding the RX and the battery The...

 This is a build log for a large plank flying wing. I named it "Pelican".. loosely based on the Pelican mentioned in nestofdragons The basic dimensions and calculations are as below..  The airfoil is phoenix The central section and each of the outer section are meter each. The outer sections have a dihedral.   It would has a central elevator and two outboard elevons/ailerons.. synchronized through TX mixing  The wings are hotwired out of EPS (closed cell polystyrene- thermocole) . It has a 1.25 inch top and bottom unidirectional carbon fiber cap spar and a 3 mm ply compression web across the whole wing. The whole wing is laminated one layer of 100 gsm fiber glass (unfortunately that was the lightest FG I could lay my hands on).. with the LE having a extra layer to form a Dbox The  wing is in 3 pieces (each of one meter), The outer panels are joined to the central portion by  rectangular aluminum bars and also locked with 4 x 3mm bolts   All t...