to Build a simple ship models — hobby many guys. With the onset of warm days on the water bodies appear whole flotilla of tiny boats, catamarans, yachts, rafts. But the trouble is that many of them can “walk” independently. Want an easy economical engine.COME ON, CATCH ME!
to Build a simple ship models — hobby many guys. With the onset of warm days on the water bodies appear whole flotilla of tiny boats, catamarans, yachts, rafts. But the trouble is that many of them can “walk” independently. Want an easy economical engine.

Built a similar machine I used. But this is considered the most successful. Layout scheme it is similar to a tractor “Belarus”. The engine of the motorcycle “Ural”. Electrical sectiontwo, but modified Instead of the standard ignition circuit breaker has two—one for each cylinder. Ignition coils B-110 also became two.
In mechanical engineering, and especially in the construction of the pipe installation is often associated with the need to weld them to the flanges or rings. To maintain precise perpendicularity them to the tube axis is not less important than to achieve high quality weld.

Readers familiar in № 4’2006 a tractor trailer Muscovite V. Wheels, interested and yourself mini-tractor for this Amateur designer. Today we publish the description of technology of manufacture of this tractor and schematic of its main components.
The Yak-130 is designed for replacement of the main UTS of the Russian air force L-39. First flight on a double Yak-130D (“Demonstrator”) with two engines RD-35 took place on 25 April 1996. In the production of Yak-130 established new engines AI-222-25 with a thrust of 2500 kg and designed and implemented a fully digital “Board”. The Yak-130 is equipped with an integrated digital-wire control system allowing, for training purposes, to change its characteristics of stability and controllability, depending on the type of the simulated aircraft.


How diverse is pressed in units of parts so numerous and adaptations for wheel — pullers. However, the majority of them operates on the principle of ejection. Well, if the part is pressed into a blind hole? How to extract, for example, the sleeve or the bearing? The original puller for these cases, constructed by the innovator A.V. Yakimenko with the Odessa plant “Stroget-replica”. The principle of it is somewhat reminiscent of some designs of household tailspin.
