ROCKET FROM BIYSK

Raketoplana this scheme, the athletes received the name “Moscow” in the building today, everywhere that speaks about its high aerodynamic qualities and reliability. However, each rocketmodeler trying to bring in design and something different, getting this sometimes with interesting results. It was developed a model athlete from the Altai city of Biisk Alexander Puzikov. Based on the “Moscow” scheme, he increased the wingspan rocket glider and the length of its fuselage. And, as shown starts at the Russian Championship of 1996 for model rockets, the innovation has justified itself.

Let me remind you briefly about the technology of this rocket plane. However, it is well-known veteran athletes, however, the young “rocket scientists” telling won’t hurt.

 

The fuselage of the model — tapered beams, laminated of composite material on the mandrel, which is a truncated cone with a length of 527 mm, with the diameters of 5 and 8 mm. on the First mandrel is wound a layer of carbon fabric with a thickness of 0.07 mm on the resin K-153, and then two layers of fiberglass with a thickness of 0.025 mm on the resin ED-20. After curing of the binder the finished I-beam vyskazyvat (this is best done on a lathe) and butt, according to the specified drawing dimensions.

 

Inside the beam, at the distance of 171 mm from the front (thicker) end, glued the balsa boss and install the fixing unit, and rotation of the wing, consisting of a duralumin Cup and the MOH screw with a head diameter of 6 mm.

To the front of the beam (bottom) glue the pylon — shaped balsa plate section 5,5×13 mm and a length of 47 mm. In front of the pylon of the drill hole with a diameter of 3 mm, it is designed for mounting thread machine forced landing. The left (lateral) side of the pylon, where is the fuse machine, paste over with a foil to prevent burn-out of balsa.

 

The container model rocket engine (MRD) is a fiberglass tube with an inner diameter of 11 mm and a length of 57 mm. In the front portion thereof affixed thin-walled dural sleeve with eight radial holes for release of gases when triggered, expelling charge, and fairing of lime.

 

 

 

 

Wing rocket plane — zelenoborskoe consisting of a center section and consoles. The angle V of the consoles is equal to 16°. The wing profile is convex-concave with a maximum thickness 3.5 mm. the Center section (its dimensions — 388×75 mm) balsa laminated of four plates of different hardness: the front and rear edges, respectively, of width 5 and 6 mm (hard balsa) and two Central, less rigid, plates. About the same are made and the console (“ears”) of the wing.

 

Console to the center section is hung using a nylon cloth glued on the bottom of the joint. On top, at a distance of 25 mm from the line joining the center section and consoles set hooks for rubber threads, is designed for the disclosure of consoles.

 

Along the axis of the center section, at a distance of 34 mm from its leading edge, provides increased celluloid pickguard hole with a diameter of 3 mm under the screw that secures the wing to the fuselage. To the bottom of the center section glued the pylon balsa plate of variable thickness with a width of 9 mm and a length of 75 mm. the Difference in the thickness of the front and rear is about 2.5 mm — this provides the optimum installation angle of the wing. On the lateral surface of the pylon (left) is the focus of duralumin with a thickness of 1 mm.

 

The stabilizer and fin of the rocket plane — balsa plates with a thickness of 1,5 mm. On the fuselage they are fixed with resin K-153, previously covered it with nitro lacquer.

 

The starting mass of the model is about 30 g.

Automatic forced landing operates on the principle of changing the center of gravity of the model. It should be noted that these machines were very popular with foreign rocketmodeler a few years ago, but then the interest in them for some strange reason declined. Nevertheless, the rocket puzikova the device operates absolutely reliably.

 

The design of this machine is quite simple. In the tail part of the fuselage beams glued the hook to which is tied the thread determinator. At the other end of the thread rubber thread is fixed and the weight — a piece of lead weighing 3 g.

 

Model to run is prepared as follows. The wing is bent down so that they lay on the bottom surface of the center section. Further, all the lead wing in the starting position, turning it 90° counter-clockwise and locking it with a thread passing through the holes in the coupling sleeve and through the hook (on the right side of center). The rotation limiter of the wing is glued into the pylon dural blank. To the free end of the thread of determinator attach the wick, light it and by passing it through the hole in the pole, tie the thread.

 

Launch of the model produced from the launcher a “Cap” After you fulfill MRD, lifting charge amount of the fixing thread, the wing unfolds, and the model begins to plan.

 

After the required flight time now the wick burns through the front end of the filament determinator, and suspended weight is deflected downwards, while respecting the alignment models, it becomes prohibitively rear, at which the glider switches to mode kupirovaniya or parachuting. Latest for rocketmodel is preferable, and this can be achieved by selection of the mass of the balance weights.

 

V. ROZHKOV, master of sports