Kazan Ansat
The Kazan Ansat (Russian Казанский Ансат ) is a Russian helicopter manufacturer Kazan Helicopters. It is designed twin engine, has a four-bladed main and two-bladed tail rotor and a skid landing gear. The term Ansat comes from the Tatar and means " easy" or " simple ".
The body is made of aluminum. Parts not belonging to the supporting structure, such as doors and covers are made of composite material. The rotor does not require bearings. The rotor blades are connected via a torsion element to the rotor hub. The rotor blades are made of a spar of composite material, which is provided at the front with a balance weight and adjoins a covered sandwich honeycomb core structure at the rear.
Is controlled by a four- fold Ansat redundant fly-by -wire system with electrical sensors and hydraulic actuators.
1993 began with the development, since the Mil Mi -8 so far produced was no longer competitive. In 1997, a dummy scale 1:1 was finished. In 1998, the first prototype was completed and subjected to ground testing. It had several changes are made, which were included in the second prototype, which performed its maiden flight on 17 August 1999. The flight program was completed by 2001.
The third prototype was proposed as a military training helicopters. The name of the machine with dual controls is Ansat -U. He could win the bid in 2001. On 1 April 2004 could be started with the appropriately modified fifth prototype, the system tests.
The knowledge gained and a more powerful engine ( PW207K ) led to further modifications, such as a change in power transmission, a new tail rotor and some changes in the cabin. The third prototype flew on 27 December 2001 for the first time. He was subjected to a new trial in 2004 with over 300 flights. Parallel to an extended version of a meter, the Ansat -3 was developed, which has a longer cabin for passengers to 14. Other changes include a five-blade main and a four-bladed tail rotor and a fixed nose gear. This variant was unveiled at MAKS 2003.
So far, six Ansat have been exported to South Korea. The Russian Air Force has ordered from the school version Ansat -U about 40 pieces, of which about ten were delivered by 2012.