With the beginning of the era of jet aircraft on the agenda was a question about a Russian military jet flying boat. Therefore, in may 1947, the OKB G. M. Beriev at the beginning of the initiative the development of jet seaplane Maritime reconnaissance P-1 with two jet engines VC-1. In November 1951, the first prototype of the R-1 was completed and submitted to perform the factory flight test and test pilot I. M. Sukhomlin started on it first run. At first there were no signs of trouble. Usually the plane was released after the first flight runs at speeds of up to 70% of the runway. In this speed range R-1 behaved normally, but when I decided to make a run at 80% of takeoff speed (over 165 km/h), started the longitudinal oscillations of such force that the aircraft were thrown out of the water. One time the car almost stood on his tail and only the instant reaction of the pilot prevented a disaster.
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The word “cultivator” has entered our lexicon relatively recently. In principle it is the same tractor only built on the basis of single-axle chassis and designed to actuate a replaceable mounted and trailed agricultural implements, and controlled by the levers behind the operator. In some cases, when the walk-behind articulated to the truck, he becomes the vehicle and the operator does not go and goes.
It would seem, are incompatible. However, wound in a spiral wire can be very useful in the power system. Soft hose connecting the jet engine to the tank, sometimes become a reason for stopping the motor in flight. The root of all evil, it turns out, in that the fuel tube, the bending under the action of centrifugal forces acting on the cord model. You can, of course, apply and a rigid tube, but it is inconvenient because of the difficulties of installation. And so very quickly she “gets used” to inserted into her nipple, starting to pass the fuel through the connection.
When early man left the caves and moved into the valleys and forests, the primitive housing steel construction with roof canopy, constructed from branches and animal skins. Centuries have passed, people have perfected not only the buildings but also the roof. A Scandinavian proverb says: “the Roof is the fifth facade”. Modern technology and a wide selection of construction materials allow us to make this element of a house is not only reliable, but also beautiful and easy. 
The model, which will be discussed, applies to the class of high-speed RC models with electric motor total weight of over 1 kg (F1-E>1kg). According to the world Association of ship modeling and ship modeling sport (NAVIGATION.) it belongs to the class of radio controlled. This is the most numerous class of models denoted by the letter F and a numeric index. For model class F1 (F1-V2,5; F1-V5; F1-V15; F1-E>1kg) the basic requirement to perform a “flight” in minimum time: the winner of the race, which I sudomodel showed the least course time.
The fuselage is laminated entirely of fiberglass, applying resin To Tina-153. The bow compartment to the first frame filled with foam PS-1, which cut the slots for placing the battery and receiver on-Board equipment. Top compartment closed, except the lantern, the cap, providing protection elements of the radio from getting fuel. Servos are installed between the first and second, easier, more frames. Access them from the top when removing the wing from a hatch close to the same cover. Under the wing fairing is made powerful, providing a broad area of attachment of the wing. At the same time the keel is laminated from the aft fuselage. The lantern is made of organic glass with a thickness of 1,5 mm, is in the left side of the oval hole in it glued fiberglass curved pipe to the muffler. Reload the model is carried out using ballast attached under the steering servos.
World war II had just ended, and yesterday’s allies very quickly began to turn into bitter enemies. The coming era of atomic weapons and of high-speed means of delivery have forced American commanders to take a fresh look at air defense of the country. In August 1945, the United States was a competition for the creation of a supersonic interceptor capable of speed up to 1260 km/h and altitude of 15 km in 4 minutes. Agree requirements for those years — fantastic! Probably this request was based on the characteristics of the Me-163.
In No. 6 1981 “M-K” talked about how the members of the design circle agricultural modeling of Chernigov obsut after the tour on the kolkhoz apiary has designed the installation for thermal tick treatment bees. Having built her, the guys undertake the following tasks. In the same collective farm apiary they watched as the beekeeper awl pierces holes in Ulevich the framework under wire to consolidate the honeycombs. The awl is the awl: some plank was cracked, the other hole was tightened and the wire did not protectives through them.
The unusual design of bearing areas — that is the main distinguishing feature of the proposed model glider. Their advantage in ease of manufacture. The absence of cut from the sheet material of the ribs removes one of the major obstacles that usually stand in front of budding aeromodellers. Not once, not twice inexperienced hands of guys spoil tutu scarce mm plywood until it become satisfactory in quality ribs. And propilivanie grooves under the rail spars, stringers and edges too rarely at first. And the quality of the execution of this work depends on the strength, stiffness, and aerodynamic characteristics of the future model.