After the signing of the Washington Treaty, appeared so uncomfortable and unwelcome for all parties involved, except that of the United States, the Japanese decided to close the infringement in the linear ships, number and tonnage of which was strictly determined by a ratio of 5:5:3 in favor of the United States and England, at the expense of cruisers. “Minimum” fleet’s new policy, developed in 1923, included no less than forty cruisers of the maximum allowed size — 10 thousand tons! They had to form 10 divisions of four ships and become, essentially, the backbone of a fleet. It is clear that such a full swing in its implementation would cost a huge amount, hardly inferior to the cost of those superliners, the construction of which had to be abandoned in accordance with the agreement.
Read more
World war II had just ended, and yesterday’s allies very quickly began to turn into bitter enemies. The coming era of atomic weapons and of high-speed means of delivery have forced American commanders to take a fresh look at air defense of the country. In August 1945, the United States was a competition for the creation of a supersonic interceptor capable of speed up to 1260 km/h and altitude of 15 km in 4 minutes. Agree requirements for those years — fantastic! Probably this request was based on the characteristics of the Me-163.
With the beginning of the era of jet aircraft on the agenda was a question about a Russian military jet flying boat. Therefore, in may 1947, the OKB G. M. Beriev at the beginning of the initiative the development of jet seaplane Maritime reconnaissance P-1 with two jet engines VC-1. In November 1951, the first prototype of the R-1 was completed and submitted to perform the factory flight test and test pilot I. M. Sukhomlin started on it first run. At first there were no signs of trouble. Usually the plane was released after the first flight runs at speeds of up to 70% of the runway. In this speed range R-1 behaved normally, but when I decided to make a run at 80% of takeoff speed (over 165 km/h), started the longitudinal oscillations of such force that the aircraft were thrown out of the water. One time the car almost stood on his tail and only the instant reaction of the pilot prevented a disaster.
In No. 6 1981 “M-K” talked about how the members of the design circle agricultural modeling of Chernigov obsut after the tour on the kolkhoz apiary has designed the installation for thermal tick treatment bees. Having built her, the guys undertake the following tasks. In the same collective farm apiary they watched as the beekeeper awl pierces holes in Ulevich the framework under wire to consolidate the honeycombs. The awl is the awl: some plank was cracked, the other hole was tightened and the wire did not protectives through them.
The unusual design of bearing areas — that is the main distinguishing feature of the proposed model glider. Their advantage in ease of manufacture. The absence of cut from the sheet material of the ribs removes one of the major obstacles that usually stand in front of budding aeromodellers. Not once, not twice inexperienced hands of guys spoil tutu scarce mm plywood until it become satisfactory in quality ribs. And propilivanie grooves under the rail spars, stringers and edges too rarely at first. And the quality of the execution of this work depends on the strength, stiffness, and aerodynamic characteristics of the future model.
The naturalists and the growers, this set is for you! If before you were with him in the greenhouse a whole bunch of different instruments, but now they are all unified and United in a package that will fit in one hand. Each of the tools can be selected from the expanded fan package and used independently from the rest. What is included in it?
…From the hold model is extracted something like a spoon with fixed candle candle. He lights the match, the wick flares up with a bright flame, and “spoon” is lowered into the hold of the boat. The model is carefully placed on the water. The moment you hear the first click, followed by the second… a few More seconds, with rhythmic roar, resembling the sound of an internal combustion engine, “torpedo boat” slowly floats on the water surface.
Unfortunately, not all premises are equipped with fire detectors. Especially dangerous in this respect, workshops and warehouses, areas with hay or fuel and lubricants. Offer the design of fire alarm is simple device that does not require for the manufacture of scarce materials.