Projects and experienced first instances of jet aircraft with variable geometry wings appeared during the Second world war: in our country the project of this aircraft was developed V. V. Shevchenko and German company “Messerschmitt” even built experimental aircraft Р1101, which went to the Americans as a trophy. On the basis of the firm “bell” has created two pilot cars X-5, taking into account the requirements of the U.S. air force to the aircraft-attack aircraft. The first is constructed from X-5 first took to the air July 20, 1951 two years later, on may 19, 1953, in the United States flew another prototype aircraft with variable wing geometry — Jaguar XF10F-1, proposed by the Grumman American fleet. The tests confirmed a significant improvement in flight performance of the aircraft due to the wing using variable geometry, but the final results of flight tests were negative. And only eleven years later, on December 21, 1964, made the first flight of the aircraft with variable wing geometry XF-111A, designed by the firm “General dynamics”, accepted in 1967, the U.S. air force.
SU-17: FIGHTER AND BOMBER
1888, the coronation of Wilhelm II, last Emperor of Germany, claim to very much, which has plunged his country into the bloodiest in the entire history of the Earth, war ended in disaster for his country and for himself. The new Emperor considered himself a great connoisseur of the fleet and even the compiled projects of warships (even if only conceptual). It is not surprising that already in the first years of the reign he completely rebuilt the organization of the naval forces, unchallenged which lasted 20 years under the auspices of the land of the generals.
Overcoming water obstacles by troops in the course of warfare is still one of the most difficult tasks of engineering support of Special importance is its start — up phase, the crossing, that is, overcoming water obstacles with the battle, when the opposite Bank defended by the enemy the Crossing ends with the capture of the vanguard or the first echelon of the advancing troops of the bridgehead, eliminating the possibility of enemy direct fire of ferrying troops.
Since the profession of Aviator became popular, there was a need for a training aircraft They were needed for initial pilot training and for maintaining the necessary level of flight training of the personnel of combat units. Since the thirties of the XX century, a whole generation of Soviet pilots passed the initial training on a simple and reliable aircraft Po-2 For advanced training were used Yakovlevskaya UT-1 and UT-2. After the war, under the leadership of Alexander Yakovlev for this purpose has created the Yak-18 and Yak-11.
Ministerial reshuffle in France in the 90-ies of the XIX century in the absence of common ideas in the creation of the Navy not only politicians, but also among experts has led to what could cause any mess of Sharp change of course has impact on all classes of ships, but the most affected was exactly cruiser.
Antisubmarine warfare in the postwar years in the Soviet Union has always paid great attention. This goal was created not only surface ships, but also planes, it is Sufficient to recall the seaplane Be-unmanned, equipped with sonobuoys buoys, aeromagnetic, anti-submarine bombs and mines. With the advent of U.S. nuclear submarines armed with ballistic missiles “Polaris”, significantly increased the role of anti-submarine aircraft, which is now required not only discovery and destruction of submarines of the enemy, but also constant monitoring of their movements in the waters of the World ocean, the clarification of the anticipated areas of their combat duty Be-6, as established later, the amphibian be-12, were not suitable for patrolling in the remote areas of the oceans, and established on them equipment is not allowed to solve such a complex task.
In accordance with the existing plan for the construction of the Soviet Navy in the late 1950-ies provided for the construction of a series of special vehicles, air defense PR 1126 ships and radar surveillance D. 62, the main weapon was supposed to be a universal anti-aircraft missile system M-11, designed for effective combat not only aircraft but also surface type enemy destroyers, torpedo boats and boats-submarines.
Compact car FIAT 500 Topolino. With the advent of the automobile mankind has had another dream as soon as possible to buy this vehicle. However, for a large part of the population for many years this dream was very far from realization — too big was the difference between the cost of cars and income of potential buyers.
By the end of 1943 the command of the Wehrmacht, it became clear that the light tank destroyers of the family “Marder” is not fully meet their tasks. This was due to the emergence of the opponents of Germany new tanks, better armored and armed. In turn, “Margery”, also had quite a powerful armament, were protected by armor in name only. Needed a new, well-armored compact self-propelled gun — a tank destroyer.
Compact car FIAT 500 Nuova. The reconstruction of post-war Italy was slow and difficult, Even the car manufacturers the leader of the Italian industry FIAT for a long time have not offered to buyers of new machines, releasing a small series only of the pre-war models and they did not find any significant demand among indigent populations with the Exceptions of the baby FIAT-500 Topolino, created in the prewar years, the designer of Dante Diakonoi, but this once is the most popular in Italy, car with each post-war year sold worse — affected by the obsolescence of the design of the sample 1936.