A SMALL PLANE — A GREAT OPPORTUNITY

The aircraft we design and build do not have booths in them, and the pilot’s seat. Yes, and they do not need aircraft with a five-meter wingspan and three-kilogram payload. “But then it’s not a plane, but only a model,” you say. I do not agree. Coming out of the walls of our body SLE-manned planes and helicopters — are real, and the tasks before them are very serious.

 

Remotely piloted vehicle (RPV), which we want to tell, is intended for the resettlement of beneficial insects — Trichogramma. Importantly, what we sought in the design of the RPV, — ensuring high performance. To this end, we designed a mechanism for spreading flight 2 thousand capsules at the same time in three directions: right, left and down. This was to ensure a wide enough grip. Directly behind the screw mounted air intake, which catch part of the cast from the screw thread. Air jet spinning a small turbine, and that drives the machine. He seized from the bunker capsules, prick them and sent deadly to insect pests “bomb” in a tubular wing spars. There were also part of the flow of intake air. The result is achieved that, for example, the boys at shooting ash out of the tube: “bombs” rapidly flew from the spars and specified by the program mechanism, which was formed on the treated field.

 

The layout of the fuselage was determined by placing in it a container for capsules and the spreader. The aircraft is a strut-braced low wing with a high aspect ratio. The fuselage RPV — type “monocoque”, with working fiberglass shell with variable thickness — 0.5 mm on the tail boom and about 2 mm in the nasal and Central parts. The bulkhead in the fuselage is only one, he drank from a material D16T and glued to the Central part of the nacelle. The frames are mounted almost all the mechanisms of RPV — engine, spreader, main landing gear and wing struts.

A container for capsules formed by the front top of the fuselage. It is a kind of hood; leaning back forward, he provides access to the entire

 

the “stuffing” of the aircraft. The container is loaded through a hatch in the top of the fuselage.

 

Directly behind the bulkhead is the air channel in which you installed the turbine drive manure spreader. From the same channel are selected of air necessary to eject the capsule through the channels in the wing.

 

 

 

Engine mount with the engine a working volume of 10.0 cm³ is fixed to the frame using shock absorbers. The fuel tank is located under the engine. As the level of fuel is below the hole in the nozzle on the engine mounted fuel pump.

 

For two-bladed propeller, Ø 320 mm with pitch of 120 mm is the intake air channel.

 

Chassis RPV — three-point, the main pillar — spring type, front swivel — controlled synchronously with the rudder, a Track chassis Ø 90 mm with a width of 30 mm; they are filled with foam rubber tires. Spring main chassis is made of steel rod with a thickness of 5 mm.

 

Wing, stabilizer and fin are foam, after treatment of their surface is covered with Mylar film. The PLANO-convex wing profile, the relative thickness of 15%, the profile of the stabilizer is symmetric, take” the relative thickness of 12%.

The wing is cut on two metal templates, profiles, and then facilitated, and at the front there is mounted a tubular titanium spar (Т18Х0,5 mm). In addition to its primary function — to serve as the wing beam — side member is a channel through which the ejected capsules.