ASP FS91AR .90 Four Stroke Glow Engine

Товар http://www.rcfair.com/en/product/8984/

Although the CNC was far from perfect, it did carry out its job. I made the formers from a 4mm birch plywood sheet and the stringers – from a 5x5 spruce rail. At delicate stringer-former intersection points I drilled 1mm holes and inserted pieces of steel wire in them. That may have been useless, but at that moment the idea sounded good to me. Then I glued the whole thing with cyanoacrylate. The result was this very structure, which is proudly termed as ‘fuselage’:Next came the ribs:Because the wings were meant to be removable, I made attaching ribs of a piece of plywood. The rest of the ribs are made from a 3mm balsa sheet. I decided not to make spars except upper and lower shelves from the same 5x5 spruce rail. To reinforce the biplane cell I had planned to use bracing trusses. Definitely, placing spars at wingtips, near the strut, would be a great idea. It was later that I concluded so, and now I was fighting for proper weight:)))When I went about the wings (the upper and the lower wings are of the same size), I started with the wing center section.I covered the leading edge with a 1mm piece of balsa. The CNC turned the assembly process into a pleasure, since everything would fit smoothly and evenly. I glued it with cyanoacrylate. It smelled pretty bad, but parts, especially balsa ones, would stick right away.The front part of the fuselage was covered with 2mm balsa, and there are control panels in the cockpit. I drew instruments in a graphic design utility and printed them out. I used transparent plastic circles, wire insulation, and here is the result:And the flight power switch, which is moved by the throttle lever located near the second pilot’s seat.The wheels have just the right diameter and are very lightweight. I borrowed them from a toy stroller, painted them and later put on motorbike tube rubber bands. The gear legs and wing struts are ready, so I could assemble the whole structure just for test.These are the tail fin, the removable balsa stabilizer, the rudder and 1mm aluminum aileron horns.The plywood skid is backed by a rubber shock, just like in the prototype. A steel heel is attached to it at the bottom side (so far there is no photo).The lower ailerons are driven by ropes (see picture below). The lower ailerons and connected to the upper ones by vertical arms.Now - the toughest (for me!) part of the business – covering and painting it. I covered the fuselage with organza and cellulose varnish (there was no dope) and painted the plane with VIKA aerosol car paint.I covered the wings and the stabilizer (please, don’t laugh to hard!) with a pantyhose. It stuck ideally to wing surfaces and wing tips. I put two layers of varnish on the wings and painted them. Honest, the surface got too weak to withstand an impact from a little thing like a grass blade.The bottom was painted blue, the top – khaki. Control sticks, pedals and pilot seats are made of aluminum wire. The control sticks are synched with the rudder and the elevator.Rudder and elevator are pulled by control cables, which I made of a piece of hooklink material purchased at a local bait shop.Finally, I got to the engine. I fixed four hard-foam fake cylinders, 6mm rods, a shampoo bottle as a crankcase – its color was just right for the engine.I moved the muffler onto the motor frame and connected it to the engine with a silicon pipe, which I had to replace several times because it would burn through. I was not thrifty on weight, since the front is short anyway. The 13x8 wooden prop Turnigy Gas Wood Propeller 13 x 8

Товар http://www.rcfair.com/ru/product/1128114/ was painted the same as the rest of the plane.Finally, there should be a pilot to fly a plane, shouldn’t there? One of my doll characters made a good pilot! He put on a leather helmet, aviator goggles, put his hands in the right place, and there he is! He moves his hand and turns his head!Well, looks like we are ready for our first takeoff. Now, let’s go to the airdrome!I tried not to be in a hurry when assembling it. The wings took eight self-tappers, the stabilizer – four and the rudder – one. Plus there were bracing trusses and stuff like that. It took about 15-20 minutes – no wonder, that was a biplane. Now ready! The chugging of the engine sounded like a sweet birdsong to me. That was my first four-stroke engine, and I liked it very much! Like any first-time endeavor, it gave me a little tremor. I knew there was no turning back, so I pushed on the throttle and off it went gaining speed.The takeoff was surprisingly smooth and light. I’d thought 4.5kg was way beyond admissible… Negative! I didn’t have to do much trimming. After a few circles I went for a little aerobatics. The loops were not bad at all. The barrel-rolls were a little stretched out, but it was not an aerobatic plane, was it!The five minutes slipped by, and it was landing time. It took two passes for it to land, and the landing speed was low, as had been the flight speed. Quite true to life!Later a few jazz-ups followed: I crafted a cowl and sundries. I flew it again, yes, I did. This is the Heavanly Slug I made.I should say that the unprecedentedly beautiful header photo was shot by the new owner of the plane, my special thanks to him for that!Characteristics:Upper wingspan: 185smWeight: 4.5 кгEngine: