Poslao: 17 Apr 2014 22:28
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- djox
- Legendarni građanin
- Pridružio: 23 Nov 2010
- Poruke: 96529
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Ukrajina...ovih dana
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Registruj se da bi učestvovao u diskusiji. Registrovanim korisnicima se NE prikazuju reklame unutar poruka.
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Poslao: 21 Apr 2014 20:51
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- ray ban11
- Legendarni građanin
- Pridružio: 17 Sep 2010
- Poruke: 24371
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Probni pilot G.Karapetjan govori o brzinskom rekordu na Mi-24
Teaching helicopters to fly - interview with a famous test-pilot
Citat:16.12.2013 / Russian Helicopters Magazine
Gurgen Karapetyan worked as a Soviet and Russian helicopter test pilot, a senior lieutenant in the reserve and Hero of the Soviet Union. During his career he mastered 39 types of helicopters, gliders and aeroplanes, or more than 100 if you count all the different modifications. He spent more than 5,500 hours in the air and flew all types of Mil helicopters. Today, Gurgen heads up safety at Russian Helicopters. He tells readers of our corporate magazine about the challenging but exciting profession of being a helicopter test pilot.
Citat:In 1978, you set the absolute world speed record for a helicopter: 368.4 km/h. How did you prepare for the flight?
At that time we were competing against the Americans who had set a world record of 350 km/h. When we realised that the Mi-24 helicopter could beat that record, a special training programme was developed. During this process we gained unique insights, which were later used in the development of a advanced medium helicopter which is being developed by designers at Russian Helicopters today and known as Russian Advanced Commercial Helicopter (RACHEL). Specialists from the aerodynamics department, flight test station experts and so on also contributed to setting speed records. For example, when flying Mi-24 at a speed of 320-340 km/h nobody paid attention to the fact that the engine power increases due to the dynamic pressure. We gathered some interesting information on vibration characteristics, about stability and control, strength and stress in the carrier system, blades, tail rotor and fuselage. At the Klimov plant in Leningrad we tested engines which confirmed that 3,300 hp was safe. The helicopter’s blades were polished and given a special coating. As much as possible was done to get the helicopter into the ideal condition. The helicopter was made as light as it could possibly be, all equipment not directly relevant to this flight was removed. For example, at a cruising speed of 250-270 km/hour the wing does the work, taking the load off the rotor. But since we were trying to increase speed, at that angle the wing hindered – rather than helped – creating resistance and a negative lift.
In total, we made two flights, and during the first we got up to a speed of 375 km/h, but the control station failed to make the necessary recording. During the second flight all went well, the result was recorded, but the speed was slightly lower: 368.4 km/h. When we landed we wanted to make a third flight to achieve a faster speed, but we saw that the vibration lockings had been torn off, although during installation all nuts had been properly tightened. The lockings were torn off, the screws were unscrewed and were held in place by a thread. We decided that this was a good indicator that we shouldn’t play with fire. So we accepted the result we had already got and congratulated ourselves on the new absolute record.
http://www.russianhelicopters.aero/en/press/publications/5456.html
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Poslao: 22 Apr 2014 21:19
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- djox
- Legendarni građanin
- Pridružio: 23 Nov 2010
- Poruke: 96529
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Ne znam koliko je izvor pouzdan,ali ako jeste tacno,onda se radi o ogromnoj prodaji/kupovini....
Saudi Arabija navodno pazari mnogo toga:
Citat:Saudi Arabia will soon sign several contracts to purchase military hardware from Russia. It goes about a major deal to buy various modifications of combat helicopters, T-90C tanks, armored vehicles and anti-aircraft missile systems. The deal approximately totals $2 billion. Saudi Arabia will purchase Mi-171, Mi-35 choppers and T-90C tanks until the end of this year Pravda.Ru reports.
Saudi Arabia 's defense budget will increase next year to $44 billion. Until recently, the nation has been purchasing military hardware from Western countries, Interfax reports. The rumors about such contracts appeared about two years ago, but now it seems that the deal has become real. Saudi Arabia intends to purchase up to 150 helicopters (30 Mi-35 and 120 Mi-17), over 150 T-90C tanks, about 250 BMP-3 (infantry combat vehicle) armored vehicles and several dozens of anti-aircraft systems and complexes.
http://www.moscowtopnews.com/?area=postView&id=1485
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Poslao: 23 Apr 2014 20:03
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- ray ban11
- Legendarni građanin
- Pridružio: 17 Sep 2010
- Poruke: 24371
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Citat:— Папа, а крокодилы летают?
— Да, сынок, только низенько-низенько.
Krokodil-low-flight-in-Afgan
i ova je dobra po komentaru
Крокодил брутален и бессердечен
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