EMERGENCY ACTUATION SYSTEM (EAS)

EAS .4011.000 is designed to equip helicopters Mi-8, Mi-8MTV, Mi-8AMT, MI-171, MI-172 and their modifications, which are based at the shoreline of open and closed water areas and perform flights above the water surface. The helicopter’s EAS guarantees landing and stay afloat for the time required for deployment of swimming aids and for the crew and passengers leaving the helicopter in case of emergency landing on the water surface.

The emergency drive system consists of main and nose cylinders and 2 gas-fill units. The main balloons are fixed on the main landing gear poles, the front ones – on the fuselage bow. One gas-filling unit consists of two balloons mounted on one frame. The gas filling units are installed in the left cargo sash on the seat box or on the starboard side of the 5H hose.


Taking off weight of the helicopter	up to 12.5 thousand kg
The time of the helicopter afloat	Minimum 30 min
System weight	265 kg
Application temperature	from -20 to 50 ° C
Operating temperature	from -40 to 50 °С
Water surface condition	up to 4 points, at destruction of one section – up to 2 points
Vertical landing speed	Up tp 1,5 m/sec
Horizontal flight speed at the moment of water contact	Up to 35 km/h
Filling time of float	No more than 10 sec
Excessive cylinders pressure	15kPа
Volume of front floats	2х1,83 ± 0,05 m³
Volume of main floats	2х6 ± 0,3 m³
Working gas	helium
Block charging pressure	20,41 МPа
Filling control	Electric
Maximum weight of helicopter in case of emergency landing on water	13 t
Assigned resource	5000 hours or 1 standard operation
Assigned service period	10 years
Regulatory work · floats (front and tail) · gas supply unit	Once a year, within all operation lifetime Not applicable, within all operation lifetime

Location of gas supply units in the cargo cabin of the helicopter

Location of gas supply units from the external fuselage of the helicopter

Location of gas supply units in cargo (shortened) helicopter wings

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