STAIRS+LADDER=LADDER

STAIRS+STAIRS=LADDER

Before you know it — even autumn comes, harvest time. Collect what ugly earth in the garden, no problems. Harder to harvest with fruit trees, especially if they are old and tall. Have each grower tricky to get high fruits and berries. Who loves all kinds of plodosemniki Panah-rods who mobile platforms.I’m convinced that the most convenient option — a lightweight ladder that can be quickly repositioned and freely installed under any crown. I’m not doing it specially, and use the existing stairs.Ideally, of course, if the stairs two to take out of them Stremyanny nothing is bound only verhushki. But one is enough if you additionally manufactures the auxiliary support, replacing the second staircase. To make it quite easy. This would require approximately the same tanji zagotovki as main stairs (for lack of they are quite suitable for such “substitutes”, Kang poles, poles).

Read more

THE GLIDER IS A NEW TYPE

GLIDER

This unusual radio controlled model glider designed in an unconventional scheme: on the one hand, the idea of carrying the fuselage (or “inhabited wing”), the other — hard power structure, constructed as “Rama”. The technology of making a model is the light-tight foam of the rigid elements of the bearing lining. The most loaded zones are enhanced with pine slats. This applies primarily to longeron nodes and edges, as well as composing, not having the foam “cores”, rudders and ailerons with a soft covering.

“DOLPHIN” IS AIRED ON THE CHANNEL

Dreams everyone has their own. Who about what, and Sergey Rudenko, an employee of city station of young technicians, in Slutsk, Minsk region, dreams of a children’s technology Park. And not only cherishes this dream, but slowly takes it. Top aides to him in this—the children, all the surrounding kids. Together they create the basis for future Park equipment. At the teen club Amateur designers “Original”, which Sergey Dmitrievich runs on a voluntary basis, already built about a dozen unusual machines: from moped to hydrometallation. The purpose of all machines the same: to serve children’s interests. So the young craftsmen design themselves, build themselves, themselves and ride. It all started with aquapad “Dolphin”, which S. D. Rudenko came up to summer at the lake the boys had fun.

Read more

GIANT FROM ITALY

GIANT OF ITALYRC model airplane, provided in this publication, it is highly unusual for the national school of design. First of all it is established in accordance with more and more of the fashion for Maxi models (it is appropriate to recall that the rules of competitions of the International Federation of air sports is not the first year there is a subclass supermystery models). In addition, its overall design matches popular today modelers orientation on the old стиль1 when models are more like genuine planes 30 years, rather than a pure sports “shells”.

Read more

ONCE AGAIN, THE “PISTONE”

ONCE MORE ABOUT THE

Article V. Minakova, “Secrets of the new “piston”, published in the “Modeller-designer”, No. 12 1994, aroused great interest among rocketmodeler. It is available for the first time in a popular form expounded basic principles of development and manufacture of gas-dynamic starting unit (GDU).Today we can offer the attention of randomdevice the research summary starts with DGG athletes from the Chelyabinsk region. This report contains calculations of the dynamics of the acceleration of model rockets weighing 230-290 g engines with a total impulse of 20 to 40 N – S. the Authors first examine the effect of parameters where the speed of descent of the model. And the practical value of this material is that the results of the lengthy calculations are given in easy-to-use form.