SMALL SPOOL, BUT PRECIOUS! Among multipurpose internal combustion engines, created by our readers, still have not found structures with the spool naturally. Meanwhile, this scheme has proven itself quite well and is often used in power installations of various applications. Under this scheme, for example, in the prewar years in the USSR mass-produced outboard motors LM-7 “Rubinar” and LM-6, which enjoyed great popularity. Known successful attempts of application of the valve timing in the engines of sports motorcycles and model the micro-engines of various applications.
(the End. The beginning see in # 9-11)
A simple design of the airframe suggested that the German model airplanes G. Jung and C. Rosa (Fig. 1). The model has good performance and can be built athletes having small practical experience.
A conversation with the Secretary of Donetsk regional Committee of the Komsomol failed: Mikhail Bondarenko was enthusiastic technical creativity of youth in his native mining region. Easy, to remember names, events, and even interesting design.
Informing about the occurrence of an event, people often use sound signals. Usually they have the character of a continuous sound “one note” annoying “beep-beep” or howling siren with a periodically varying frequency. Generators of electric vibrations, producing these signals is also straightforward. They are based on one-two multivibrators, which makes the structure very simple, accessible to even beginners repetition hams.
To reduce the ripple in the filter of the rectifier sometimes try to put the capacitor as much as possible capacity. However, this is not always safe for the semiconductor valves.
Furniture with doors are not always easy to use. For example, music is better to have in the cupboard, and an open rack with shelves. This facilitates access to both the instrument and its accessories. Not accidentally there are many options of this furniture. For example, as shown here.
Anyone who has been in Yalta, remember, of course, the town’s waterfront, a huge concrete boulders, piled in the sea in front of her, furious roar of the waves in them in stormy weather: the man protected the shore from erosion by such “pyramids” that have no wave to move. But what kind of giant they have raised, brought down to this place? Even dvadtsatipyatiletnih truck compared to one with such a stone — a child’s toy.
Ask any kid, building the first schematic model of what he wants Almost certainly he will answer — about copy. And it is clear. It’s no wonder it is believed that the replica model is one of the most interesting and complex classes of aircraft modeling. Order copies, model airplanes acquainted with the technical achievements of aviation, possess the perfect use of the tool.