Svobodnaya model helicopter. As they say, is new — is well forgotten old. Not so long ago we introduced readers model airplanes from the simplest Svobodnaya model helicopter — judging by the responses, a mini helicopter like you, our readers, Some even took the model for something contraption, missing in the article is the observation that these helicopters modelers created and launched in the early 50-ies of the last century.
Motorists know how important it is for diesel internal combustion engines proper installation of the moment of ignition — the ignition spark of the spark fuel in the cylinder before the end of the compression stroke. In theory it should occur exactly at the end of this cycle. In practice, use a small spark advance below the maximum dissipation was carried out at the beginning of the next measure — extension. Otherwise you will not get far: the motor is getting “greedy”, but “pulls” very bad.
OR “15 HORSES”, WHICH WEIGH 12 POUNDS. In the range of domestic internal combustion engines which can be guided to create all-terrain vehicles Amateur designers, there are still no models working volume of 125 cm3, with sufficient specific capacity and acceptable specific weight (about 0.8—0.9 kg per horsepower). Attempts to adapt motorcycle engines — the M1A and the like — associated with a time consuming job to remove the gearbox and rework the ignition system to more easy and reliable. But if you have a good engine class 125 cm3 would increase immeasurably the possibility of creating light planes, ekranolyot and gliders.
On the shore of the sea of Okhotsk, far from the regional center — the city of Magadan, located North of the village of Evensk. There are still no good roads, just on the outskirts of the tundra, hills. The main vehicle here ATVs, helicopters and planes.
The boat standing at the dock, nothing attracted attention. Except that instead of a outboard motor on it was a propulsion system with a propeller of relatively small diameter at the gliders it is usually much more. Engine, who worked on small gas gained momentum, howled, n suddenly the plane screw threw himself from a dense foggy cloud. The glider, dramatically picking up speed, reached the redan, and after a couple of minutes disappeared from view, leaving behind a trail of slowly falling.
Photo these aeroamphibious — archive edition. They, along with some technical characteristics of the machines, sent some time ago, Vladimir Pichugin from Kizel, Perm region.
Before proceeding to the description of the snowmobile “Turtle-2”, will tell about the history of his birth. And it happened thanks to the ATV — the predecessor of the same name, only with index “1”.
Each constructor of RC models knows how many times spent the time to draw a wiring diagram. In a hurry is not always possible to sustain the necessary proportions between the individual elements, thoroughly implement the conventions. And then this scheme is not only messy, unsightly, but it often creep annoying bugs and inaccuracies. What to do in this case? To help here you can the cliches. More precisely, a set of moulds from which to select the desired image of the scheme. There are only about twenty: resistor, capacitor, diode, transistor, transformer, etc.
River passenger ships — a very numerous class of vessels. Small flights of ships to last several hours. Passengers are protected from the weather and can relax in the soft comfortable chair. Large vessels are often built specifically for multi-day journeys and equipped with comfortable sleeping cabins. Small have a small draught and a displacement of up to 80 tonnes, that allows to operate them even in the rivers. A model of such “microlayer” is very beautiful and has good driving characteristics.
At competitions of the Moscow schoolchildren model pupil of the 55th school Igor Svistunov in adverse weather conditions (wind of 6-10 m / s) scored 501 points. Only breaking model at the start of one of the tours did not allow Igor to achieve absolute victory outcome in all five rounds.