The heaviest serial helicopter in the world Mi-26T helicopter crashed when landing on the Yamal Peninsula near the field “Russian”. On Board were eight people, seven were injured, one seriously. The helicopter can not be restored.
the Network has several videos, which depicted the unsuccessful landing of the helicopter. One of them shows that the helicopter at the time of a hard landing touches the ground, with the nose of the fuselage lifted up the tail boom with the screw omitted. At the moment of impact with the tail boom broken off, the helicopter leans to one side, the rotor blades rotating at tremendous corner speed, hit the ground, their splinters fly in all directions.
According to preliminary information, in flight of the helicopter Mi-26 with the tail number RA-6268 airline “Abakan-Avia” has refused one of the two engines. The pilot tried to bring the helicopter to the landing site.
“MK” asked to comment on flight emergency aeronautical engineer. Here’s what he said on condition of anonymity after watching the video from the crash site.
-as far As I know, in flight, the helicopter refused one engine was surging. It is not critical. On one engine the car was flying. The Mi-26 two engines. One otkazivalis engine is allowed to fly. Now, if the gearbox refused that one, that’s another matter.
Apparently, the pilot wanted to bring the faulty helicopter on its landing pad, where there are specialists, the technique for maintenance.
Why the tail boom fell off when landing?
-the Rate of decline, in my opinion, in the last seconds was a bit more than necessary. Rough, usually, the Mi-26 tender sit. There was increased vertical speed. The impact was greater force than necessary, and the design of the tail boom did not survive the breaking load.
-Say, the helicopter did not reach the landing pad a few meters. Maybe the pilot should not pull, and used to land on any flat spot?
-the Machine is very heavy. He didn’t know how strong the ground. The helicopter is on uneven ground could also fell on its side, with all the consequences.
-a Gust of wind could in the last second could affect the landing?
” Guess not.” Judging from the video, some of the vortex there. Nothing special.
Then what could stop to smoothly land the helicopter?
-Could be a technical fault. We didn’t see what happened at the pilot on the instruments, don’t know what he had on Board. I think there is another factor that could work?
-Human?
-You could say that. When in flight one engine fails, then you have the emotional state of another. If you drive a car and know what you have or faulty brakes, or the clutch. You different feel behind the wheel? Similarly, the pilot. It is more tense, otuleChen other factors. He’s not a robot, but a living person. In this case there was engine failure. The pilot tried to endure the car to the site. Possible incorrect assessment of the altitude or vertical speed.
why the landing of the helicopter was the nose lifted above the ordinary?
-It is quite understandable that the pilot counteracts the horizontal speed before landing. The nose of the fuselage lifted up, and the tail lowered.
Heavy military transport helicopter Mi-26 was created in 1977. Mi-26T – civilian version of it. Built more than 300 Mi-26 of various modifications. The cost is about $30 million Takeoff weight – 56 tons. Mass of load is 20 tons. Cases are known, when Mi-26 was evacuated to Afghanistan on an external sling padded heavy American helicopters “Chinook”.
