When my son was little, I made him a car so he rode and mastered driving skills — in fact all the controls on it, like in a real car. The body of the car — carrying. The frame is made of wooden bars and covered with plywood bakelizirovannoj bottom, and sides — hardboard (MDF) Read more…
Unfortunately, experience manufacturing propellers for the Amateur designs with rare exceptions not worth repeating. And perhaps the main cause of failures in the inconsistency of the parameters of the propeller with the engine performance. Often Amateur designers create too “heavy” in the wind against the propellers, causing the engine not developing full power and thrust is insufficient.
The proposed design is a four-section, three-man boat with load capacity of 320 kg In tourist trips she, being dragged to the Bank, turns in a fairly spacious “tent”, especially if you throw on top of a piece of plastic film. The boat is so simple that it can make even a person unfamiliar with shipbuilding and have only basic skills working with wood. To manufacture do not need special equipment and space, the whole boat is going in the room of a city apartment. It is made from widely available materials that can be Purchased in stores construction And household goods. The cost is Approximately 20-30 rubles (in passing it should be noted that for the registration of boats is necessary to keep all checks and receipts).
When my grandson Grisha began to grow and stopped paying attention to previously favorite toys-rattles, the home began to notice that he started to show interest in different instruments and even mechanisms. Then I decided to make him a little electromobility-Quad, where in good weather you can ride on the street, and bad — Yves room. And not only that the child received pleasure from riding — mastering the driving skills he was introduced to technology, getting acquainted with its device.
In the “M-K” have already talked about manual cultivator with fibronogen developed by members of the glee club VOIR (see “M-K”, 1976, No. 12). Further development of this design, in which muscular effort is minimized, was the tiller.
Letters a lot. One of them is to “brand” the forms of various enterprises and institutions, others on pieces of paper torn from a student notebook. But the questions are all about the same: the readers are interested in where, when and how you can get comprehensive information about gliders and hang gliding. We started in 1968 talking about a new kind of motorless flying has generated huge interest and gained the scope is truly inclusive. This, in our opinion, quite natural and not surprising: the level of technical training of young people is now high enough that even at home to build their own full-fledged glider. A shortage of necessary materials also does not stop enthusiasts of hang gliding. Difficulties in other: there is good, detailed and accurate drawings, which could produce details of the glider and the lack of experience and technological skills very often negates the attempt to make a dome (the sail). Reach extremes. In a letter to the seventh-grader Vladimir Nikitin of Sumy region photography barefoot boys. He flies with a small hill on a hang glider, made of spruce and covered with pieces of old red slogan.
Rigging centerboard yacht “salute” consists of two sails (mainsail and headsail), mast, standing and running rigging. Mast are called wooden parts of weapons (“Salute” sail type “Guara” is the mast, boom and gaff). Standing rigging — forestay and shrouds, running — Director the jaw-Gardel (tackle for lifting Hafele), boom-mainsheet and the jib sheets (the ends that serve to control the sails). They are made usually of hemp rope (tight entourage or the special weave) thickness 10— 12 mm. Drawings of parts of the mast and their sizes are shown in figure 1.
“Fly higher, farther, faster!” This aircraft is the slogan became the motto of hang gliders. In our picture the glider master of sports M. B. Gokhberg. The front part of the dome is raised above the spar and forms a profile line, which significantly improves the aerodynamic efficiency of the machine. This glider Hochberg flew competition gliders Moscow area and became the absolute champion of the sum of three exercises.
Diverse and numerous family water bikes, but they all have a major flaw: transport them by land very difficult. Another thing – “ampipe”, on land he feels as confident as on the water. The secret to this versatility in the propeller – crankshaft with propeller wheels when traveling on the roads is the leading “front axle”.
The age of the members in the club of young technicians “planet” in the city of Izhevsk with a range from primary school students to graduates. And if the seniors are more interested in serious equipment (tillers, snowmobiles, ATVs, etc.), for the younger most attractive lightweight motorcycles, it was possible to start to ride. Therefore, the technical creativity of each new generation of young inventors usually begins with the development of mini-mokik. One of these machines has been described in the publication “Gasoline is not necessary” at No. 9 in 1997, “Model construction”. In it they talked about the design on the base frame and running gear from the Riga mini-mokik with motor drive MD-1 serial excitation. Unfortunately, this idea has not received development, as it was not possible to find a more lightweight, but powerful battery is a heavy car, which had to use in this design. Therefore, in the future to drive mokikov used traditional petrol engines type D-6, D-8.
