The article “Acupuncture for metal”, published in the journal “modelist-Konstruktor” No. 2, 1974, provoked numerous responses, not only individual readers, but also many businesses and organizations. Editorial Board, ENEA USSR and VNIIST continue to receive letters and inquiries on the subject.
Public Design Bureau
FOR ALL ELEMENTS
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.
PROPORTIONAL ACES
the (the End. The beginning see in # 9-11)
SERVOS
In the “Radiopop” is applied to the DC motors with independent excitation (permanent magnet) type DP-1-26, DP-1-13 with modified brushes and DP-1-26 *rewound to the working voltage of 4.5—5 V. replace the carbon brushes on metal, made of thin wires, gives the opportunity to improve the performance of engines to reduce static moment of resistance, to IMPROVE efficiency, etc. the Electric circuit actuating mechanism — figure 1.
RESERVES FREE FLIGHT
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.
GEAR UP!
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.
MACHINE FOR MY SON
The car was conceived and executed as a valid simulator for the novice driver — my 15-year-old son Maxim that he could get it driving skills, and also to assemble-disassemble and repair the machine, mastering the technical “ABC”.
LEARN TO COUNT
THE DEVELOPMENT OF COMMON TECHNICAL REQUIREMENTS
The need for the development of a lot of technical devices are always dictated by any particular need, and ultimately aimed at improving the productivity and quality of work in production and efficiency of scientific researches or educational process.
INVENTING… THE WHEEL
At this stage of the work, outline the design of the actuator, which provides translational movement of the model. Let’s start with the analysis of the already known mechanisms, which are used in a large technique (Fig. 1). Under the terms of our problem, the most acceptable is the idea of using the wheel.
ROVER-CLIMBER
Every time lugging bulky geophysical equipment on mountain glaciers, I wanted a jeep. Finally it was received. And here we tracked the car-amphibians against snow-capped mountains… revved the motor and the machine, lost in the snow at the cabin, moved slowly. Ahead was the forehead of the glacier. Pretty flat for Hiking standards: degree fifteen. But the driver knew that the snow he did not take, and took the car sideways. In the middle of the forehead jumped out the caterpillar.
VALVE OF THE ENGINE FOR THE MAP
Since the invention of engineer D. Zimmerman of the GDR flat disk of the spool to control the inlet of the working mixture in two-stroke engines, slide valve gas distribution has found wide application in racing engines for many leading companies.