Participants and guests of the all-Union review-competition of self-made ATVs in Arkhangelsk were surprised to find that in the city there is a whole Amateur “industry” for the manufacture of such machines on the low-pressure tires. And the scale of it so large that it can only be explained by a rare combination of factors such as the availability of the industrial base, proximity to nature with its roadless spaces and a large number of enthusiasts. Characteristically, acquire pneumatic-tired machines and townspeople, and villagers: for travel on fishing, hunting, mushrooms and berries. Consider also that for some it is the only vehicle suitable to local conditions.
29.09.2012 G. has a new plane the boat under the designation L-31 and “New Faith.” Now the aircraft has been tested in acquitting all the calculations and hopes. Manufactured flying boat in the Samara aviation sportunterricht club under the direction of G. Annenkovo. L-31 means: the triple boat with a single engine (Rotах-912).
AIRPLANE FOR TWO. Most of aircraft fans, began his career in aviation with the construction of a single aircraft in the end come to the conclusion that such machines are extremely limited – to fly them only in calm weather; two-stroke engine is reliable, that does not allow the pilot to depart from the aerodrome; any significant cargo on such aircraft can’t be transported, and for learning single aircraft is not suitable.
Speed sailing boards is such that it can compete even with well-known for its rapidity “tea clippers”. This is achieved thanks to perfect hydrodynamics easy float-casing. Contours it is designed to blend with dignity as semi-displacement and planing vessels.
What is to be the new model? This question with relentless regularity occurs before each athlete, the venerable and the very young, immediately after the end of the season. The stage selection scheme of another apparatus is extremely “delicious” for any designer-Modeler, but also time-consuming and responsible. It is here laid the foundations of sporting success at future competitions.
Analysis of the number of participants in youth competitions of aeromodellers in the expense of building a traditional school clearly indicates a much higher availability of gliders compared to rezinomotornaya. This is understandable: because in the end, the last is the same as the gliders, but are equipped by Moto installations, bringing the sharp complexity of not only manufacturing, but, more importantly, adjust Svobodnaya.
Operation model glow motors has always presented difficulties for most modelers. Due to the high toxicity of alcohol — the main component of fuel for “calloc” — this type of engine was fully closed for the young. And adult athletes at any level of supply of methanol, the eternal stumbling block.
Historians say that the sail appeared on land about four thousand years ago! Fiction? No, the reality is — there is documentary evidence.
This is a hovercraft I built for several years. Engine – from VAZ-2108 with a capacity of 74 HP, Case – fiberglass, fiberglass epoxy resin, is made of the type “sandwich” with the Styrofoam plates. The structure weight was about 370 kg. propeller – propelling three-bladed, with a diameter of sweeping the surface 1700 mm and variable in place of step. There are still two the blower for pressurization of the airbag. Skirt the cushions are made from French awning waterproof material with a density of 600 g/m2.
We offer young athletes like high-speed cord combines the experience gained in this kind of automodelisme in recent years. Sorpresa design is logical from the point of view the sole purpose of achieving the highest speeds, that is, turning the aircar “Frank” sportsread. But if to argue from the point of view of an engineer, simplicity is the evidence of correctness of the choice of scheme design and, if it reaches the desired result.