XF-70 Walkiria.

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In the 1950s When the cold war began to flare up between the US and the USSR in the USA, it was decided to start creating a high-rise bomber who could fly on supersonic speeds up to 3 movings, that is, three times faster than sound speed. It was advisable to think that this bomber could fly at an inaccessible height — 21 km above the ground.

As a result, the world’s first American supersonic bomber North American XB-70 Valkyrie appeared. The plane was developed for the US strategic aviation command and was intended for a hypothetical nuclear strike on the Soviet Union.

Of course, the XB-70 Valkyrie had sufficient range to strike — 11 thousand km without refueling. And the flight height indicated in the project he overtaken, and was able to rise above — on the bar in 23 km. It was assumed that with a successful testing of the aircraft, it will be started to deliver to the troops in 1963, and he himself will come to replace the B-52 strategic bombing. After all design work, two aircraft were built. In the 1960s Both of them performed test flights.

The plane, in itself, actually overtook his time, so in it were applied by the front metal alloys, titanium alloys and the shape of the fuselage and wings. The aircraft itself is made according to the advanced scheme of «Nezhevostsky». He had anterior horizontal plumage, and at the end two keel. The shape of the triangular wing surprises today. The edges of the wing could deviate down by 65 degrees.

Due to this, the supersonic shock wave was held under the wing. In addition, they also performed the role of an additional keel. And so in each of the two triangular wings. The entire powerful design was carried at least powerful six single-mounted engines YJ93-GE-3. They were installed on a packet scheme in the tail part of the fuselage, which was the disadvantage of this aircraft, which was not used in the future both in the United States and in the USSR.

The plane was ready for some time to go through all the tests and start delivered to the troops, but the catastrophe of the second copy of the XB-70 Valkyrie, which occurred on June 8, 1966 put the cross throughout the program. The first copy continued test flights, but nevertheless, after three years, the program was closed, and the plane was sent to the National Museum of the United States Air Force, which is located in Ohio. It is noteworthy that this XB-70 instance has been preserved there until now.

No less role in the closing of the XB-70 Valkyrie project was the Hard response of the USSR. The fact is that in our country they took very tightly for the creation of an interceptor fighter that could easily deal with this American bomber. The legendary MiG-25, who was still adopted in the USSR in 1970 by this fighter-interceptor. Apparently, understanding the fact that in the USSR, work on the fighter-interceptor MiG-25 is almost over and he is about to be adopted, the Americans have accepted the right decision and closed the program on the creation of XB-70 Valkyrie.

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