U.S. air force plans to announce a tender for the supply of new engines for strategic bombers B-52H Stratofortress and holding their re-engine. As writes Flightglobal, thanks to re-engine the us military intend to extend the service life of the aircraft until at least 2050.
The U.S. air force is considering the possibility of replacing the engines of B-52 bombers from mid-2010 years. Currently, the military is exploring two options to re-engine aircraft: direct replacement motors or replacement of power plants with a decrease in their number (from the current eight to four). Option direct replacement is preferred.
Replacement engines is necessary for several reasons. In particular, the maintenance and repair of TF33 engines mounted on B-52 today, has already cost quite expensive. In addition, due to re-engine military calculate to reduce fuel consumption bombers in flight.
According to the preliminary list of requirements published by the U.S. air force, according to the tender results, the military intend to purchase 608 new commercial engines for bombers B-52H, as well as some of their emergency number. To choose the winner of the tender scheduled no later than may of 2021. All engines must be shipped within 17 years since the signing of the contract.
Bombers B-52 was delivered to the US air force by a group of Boeing until 1962. Currently the us military have 76 such aircraft, the age of the youngest of which has passed for 57 years.
Combat radius Stratofortress is about 7.2 thousand miles, a ferry range of 16 thousand kilometers. The aircraft is capable of speeds up to 950 kilometers per hour and carry a bomb load weighing up to 31 tons.