CATAMARAN FOR FOUR

CATAMARAN FOR FOUR

For water hikes inflatable catamaran has a number of advantages over the kayak. It is high reliability, great stability, with satisfactory maneuverability, increased permeability of the rapids sections, low weight, comfort, and convenience for boarding and alighting. In the end, the benefits outweigh the known disadvantages of a catamaran — high windage hull with the crew and low speed when driving on the oars. Propose a simple design of a catamaran, which used available materials.

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RECUMBENT: LET’S HIT THE ROAD!

RECUMBENT: IT'S TIME TO GO!In the late 70-ies in the press, especially in the journal “modelist-Konstruktor”, wrote a lot about velomobiles. Was presented designs of various authors. Some argued that a new form of transport, which in the future will press not only a bike but a car. However, nothing happened. Why? A simple answer to this question is difficult. Will only Express some thoughts.

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CHANGE ROUND TO OVAL

CHANGE ROUND TO OVAL

A letter from our reader V. Zasyadko prompted the idea to go back to the old idea of replacing the round sprocket of the bike Ellipso, which leads to the alignment torque generated by the efforts of the cyclist when pedaling. According to cyclists, the idea deserves attention, and the embodiment of her life — not too time consuming even at home. The recommendations V. Zasyadko calculation ellipse-tion of stars and of its manufacturing technology.

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WITH A PROPELLER IN THE WATER…

WITH A PROPELLER IN THE WATER...The propeller, or, as at the dawn of aviation, the propeller is experiencing a rebirth. The reason is the emergence of daltelecom and motor paragliders with very advanced rotor settings. The pilots quickly learned that they can be used in ground form.

It should be noted that the power units deltalyo power, reliability and efficiency are ideal for creating aerovision, since the parameters of the motor with propeller is not worse than the traditional powertrain with the propeller. Moreover, the boat with aredigital not afraid of shallow water, reeds, sedges and algae. Besides the engine, the glider releases the exhaust is not in the water, like an outboard or stationary power unit for any boat (from the point of view of environmentalists, this method of muffling the exhaust note is not tenable!), and in the air.

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AND THROUGH THE SWAMP, AND SNOW

AND THROUGH THE SWAMP, AND SNOWATVs on tires of low pressure are becoming more comfortable. If ten years ago, enthusiasts of all-terrain vehicles created mainly of three-, four – and six-wheeled vehicle, devoid of even a hint of the cockpit, today Amateur designers send in edition the pictures they made on their ATVs with a comfortable and warm cabins designed for long journeys in conditions of low temperatures. Here is one of such machines is a comfortable tricycle “Mini-200”.

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“ANT” BODY FORWARD

First of all, I thank the editor of “Model construction” for the promotion of ingenuity, intelligence and talent of ordinary people, for the opportunity to use his rich creative experience, focused in the magazine. Keep up the good work!
For my part, I would like to offer our readers a description of the very practical mini-truck. Practical in the sense that it is simple in structure, easy to operate and inexpensive to operate.

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STRENGTH – THE HUB

THE STRENGTH OF THE HUBMore than two decades of operation legkomotornyh and sports bikes with an analysis of the ongoing failures has allowed us to develop a number of practical recommendations that may be of interest to readers-cyclists. Established, for example, the rear wheel goes down more often than the front. So, the front wheel of my “vsepogodnymi” has successfully passed about 100,000 km It still “feels good”.

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ASYMMETRICAL TRAILER

ASYMMETRICAL TRAILERThe owners of a motorcycle with a sidecar often wonder about how to increase its capacity? The original solution to this question offered a reader of our magazine A. Tatarnikov in his article “Compliant trailer”, published in the “Modeller-designer” №12 for 1992. The design of its motorized with asymmetrical location of the node coupling and gauge coincides with the track of the tractor, has become quite popular among motorcyclists. Over the years, there are many versions of the famous trailer. Today is one of the latest and most interesting.

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ON SAILING

SAILINGThose who live near the water, the boat is as necessary as for other bike or car. Of course, experienced shipbuilders-fans are unlikely to descend to the boat, we want to bring to your attention, but for beginners shipbuilders design of this boat is what you need. It is simple, technological, besides allows on the basis of one case to build a row boat, and a sailboat.Before you start building housing on a large sheet of plywood it is necessary to draw Plaz — at least, to portray the theoretical section of the housing.

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PNEUMATIC TRANSFORMER

PNEUMATIC-TRANSFORMEROnce television was a popular program “you can”, where the craftsmen talked about their designs. Perhaps it first appeared the information about the pneumatic-tired machines. A publication in the journal “modelist-Konstruktor” has prompted many enthusiasts, including our own, Angarskaya (mostly fishermen) to manufacture such machines with their own hands. Pneumatic bribed his external simplicity, which promises a good performance.

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