MODEL CONSTRUCTION

COAXIAL ROTOR CHAMPION

17.07.201812.05.2018World of models

General interest participants and experts of the past championship of Russia for sport flying showed to the model of the winner in the class of rotochutes (S9A) Mr. Voronenko. I must admit that in my many years of practice in the rocket modeling coaxial rotocut is an extraordinary event. I believe that this information will be of interest to readers of the journal “modelist-Konstruktor”.

KATATSYA LOVE…

17.07.201812.05.2018Own hands

The sleigh is, of course, perfect! But what to do with baby clothes when the child returned from the street after riding on all these sleds? Dry, you say, and you’re right. But the question is, how?

BOARD AND SAIL

17.07.201812.05.2018Design

THE WIND IN THE CONTEXT OF

The sail of the windsurfer is not the only element that produces thrust, but “the wheel” for manoeuvring. The air flow at the surface and water has a lower speed than the wind at a height of, say, three meters. Therefore, the load on the sail (corresponding speed) are proportional to the height from the water level and each overlying section of the sail will receive a certain twist in relation to the underlying (Fig. 1A).

RESCUE ROPE

17.07.201812.05.2018Good recommendations

There are situations when an urgent need to move light but large-size material: chipboard, sheet glass, hardboard or plywood, and at this time there. In this case, the rescue of suitable length cut “endless” rope (with tied ends). The sheet material should be placed on the longest edge and under the edges to make a Read more…

THE SUPERCAPACITOR IN YOUR POCKET

17.07.201812.05.2018Himself an electrician

We offer a simple pocket radio with low voltage power from the supercapacitor. The receiver is fully on transistors, because the low voltage does not allow to use the existing chips (e.g., 174ХА10). Receiver of direct amplification, which provides sufficient volume to broadcast stations in the medium waveband and working in a range of supply voltages from 2 to 0.9 V.

BOARD AND SAIL

17.07.201812.05.2018Design

MANUFACTURER GUCHKOV

Gucci rider is two arcs, glued wooden slats and the United front a metal band, framed with a soft rubber bumper. Shkotovo (rear) ends Guchkov have holes through which the sheet (rear) corner of the sail go to the ends of the nylon stoppers — sheets. The stopper is placed on each gig in a convenient pull-up or weakening of the Scots place — it allows on-the-go to increase or decrease “belly” of the sail.

AQUAPAD

17.07.201812.05.2018Design

That move through the water can be sitting for the PA log, and water starting from the first available under the hand with a stick, has been known for many thousands of years. For such a considerable historical period inventive humanity thought of a hollow log in the recess and that the horses of the stick to shape in the form of a paddle. In our time as a technique and the means of rowing remain approximately the same as in the days of the pharaohs.

DRILL IS THIN AND LONG

17.07.201812.05.2018Good recommendations

To drill the axial bore of small diameter into a long cylindrical part is not so easy even on the machine — drill was almost certainly “will lead”. To gain maybe a simple jig made from a block of aluminium, plastic or solid wood thickness of 15 — 20mm Through hole of the desired diameter Read more…

T-MOLDINGS

17.07.201812.05.2018Good recommendations

The gaps between the doors or door leaf and the jamb cover strip, typically of the rack, attaching it with the overlap to the free edge of the door. If the rail is narrow, it is poorly kept. If wide, it looks ugly. Head fasteners too difficult to hide. Better batten to make moldings, t-section Read more…

HOME AUTOMATION

17.07.201812.05.2018Own hands

Started summer vacations, exciting travel, tourist trips. Among a variety of troubles, not the least is care leave for home plants or inhabitants of the aquarium. Some need daily watering, others — feeding. And you never know happens in the house other animals that require daily care.