The first flight of fighter I-301 with motor liquid cooling M-105P, created under the leadership of S. A. Lavochkin, V. P. Gorbunov and M. I. Gudkov and became the prototype of the LaGG-3 was held on 19 March 1940, Good armament (20mm cannon and 12.7 mm machine gun) together with a high speed (605 km/h) prototype machine contributed to the rapid introduction And 301 for six aircraft factories. The first production aircraft took to the air January 23, 1941
“Dear editors! I recently bought in shop “Children’s world” microelectronical, but when I put it on the model of the torpedo boats, it is a day out of order. Please advise, can it be repaired and how?
Many hams are faced with the problem: the drilling micro-holes in the manufacture of printed circuit boards! Drill a small diameter even in the cities is rare, and they often poma. My friend get out of this situation as follows: use a sewing needle with broken eye. You can take a new, stachiw ear half. Read more…
You have returned home or moved from room to room. Opening the door, clicked the lock handle and then light lit up. Comfortable? And the secret is this. Attached to the handle bracket presses the button of a pushbutton connected to the network switch. Turn it on and when you close the door, press again, Read more…
As a rule, commercially available hanging racks for ties and belts there is a special bracket located on the door.&If such detail is missing, it will replace the original hanger shown in the picture.
It is known that the standard diameter of a pencil stylus and the inner diameter of the collet gripping for him, the compass does not correspond to each other: terminal to insert, we have to undermine. Even more hassle, if you want a colored pen. Yes, and to rescue the rest of the pencil is also not a simple matter: it will only be with a needle or knife.
It is worth climbing the stairs for roof repairs, window frames, electrical wiring, as here, there is a problem: where to place the necessary tools? Of course, you can take them with him, stuffed in pockets or folded in any bag. But it is better to establish a special removable table that can be mounted on two adjacent rails.
The first domestic locomotive ВЛ19. In the late 1920-ies in our country began the so-called industrialization, whose main objective was to lift the industry to the level of the leading industrial powers of the world. A special role in this process was given to the reconstruction of the railway transport, which was in a deplorable condition — effect like the effects of the Civil war and the growing shortage of qualified personnel that led to the stagnation in the development of railway equipment.
Yak-9 became the subsequent development of long-range fighter Yak-7ДИ, appeared in October 1942 and the Yak-7ДИ made two wing tank, reducing fuel capacity up to 320 kg. there were some other seemingly minor, but important differences in a battle. This version was tested successfully and were built in three factories under the designation Yak-9. Armament usually consisted of 20-mm cannon ShVAK and the UBS 12.7 mm machine gun.
The development of anti-tank artillery in the second half of the 1930-ies, in particular the appearance of the guns of calibre of 37 — 47 mm, has questioned the effectiveness of the use of tanks with thick armor 20 — 25 mm. clearly this was proved by the experience of the civil war in Spain. Anti-tank gun of Franco easily punched well armed, but poorly protected tanks, the Republicans — the Soviet T-26 and BT-5. However, the problem of security was not only light, but medium and heavy tanks. They all had different weapons and sizes, but virtually the same reservation is applied to the heavy tank T-35.
