29 July 2008 of the year, Martin Aircraft Company introduced the aircraft in the form of a satchel Martin Jetpack and made the first official flight. The development of this device took a total of 27 years, and production started only after 6 years after the first flight.
Martin Jetpack uses the screws and the internal combustion engine
According to the classification of the Federal aviation Agency of the USA the device belongs to the class of ultralight (Ultralight) and does not require a pilot’s license to fly. One of the main features of the Martin Jetpack is that it runs on ordinary gasoline, and hence its owners will not have to face difficulties the purchase of aviation fuel. The maximum flight speed can reach 100 kilometers per hour at a height of 2.5 km and the duration is approximately 30 minutes on a full tank. However, buying this device is impossible.
29 Jul 1914 year launched a telephone line, connecting newYork and SanFrancisco. Rather, the launch of the line took place a little later, but on this day, 101 years ago, Alexander Graham bell called his assistant Thomas Watson. The symbolic conversation of these people have accompanied every important event in the history of American telephony. The moment you start to work line new York- San Francisco was preceded by the laying of copper cable with a length of about 11 thousand kilometers.
Alexander Graham bell – the man without whom the telephone connection would not be
Start of the transcontinental line in commercial operation took place in early 1915. And in order that the voice was clearly heard on the other end of the country to specialists AT&T had to install additional stations and power amplifiers for the line.
29 Jul 1963 took place the first flight of the prototype Tu–124A, which was the prototype of the legendary Tu–134. Initially Tupolev to design the Tu–134 as a new aircraft – at its heart lay the idea of upgrading existing Tu–124. Test modifications to the index And has been lengthened fuselage, the engines were moved to the tail section and empennage was replaced by a T-shaped.
Tu–134 in the Soviet Aeroflot livery
The result of the tests exceeded all expectations, so after two years the aircraft received its official name – the Tu–134, and another year it was launched serial production. Different versions of the plane was produced from 1966 to 1984, he was actively operated by Aeroflot in the Soviet Union and the airlines of countries of the socialist camp.