Ejection Seat K-36L-3,5Ya


The ejection seats of the К-36-3,5 family are designed to be used as a part of the emergency escape system for single-seat and two-seat combat/combat & training aircraft. They serve as a seat in the pilot working station and a means of emergency escape from an aircraft by ejection.

Design description:

The K-36L-3,5Ya is a lightweight version of the К-36D-3,5 seat. The seat features ejection through the canopy transparency.

In flight, a crewmember is held in the seat with a suspension/restraint harness system. The crewmember may be restrained in the seat with the shoulder and waist restraint mechanisms. The seat features stepless height adjustment, which makes the seat occupation comfortable for work and vision.

The crewmember protection against the dynamic pressure G-loads at ejection is provided with protective gear, forced restraint in the seat, sustained seat stabilization as well as the selection of one of three operation modes for the energy source depending on the suited pilot mass.

After automatic separation of the pilot from the seat, the recovery parachute canopy is inflated providing the pilot’s safe descent. A portable survival kit, which is separated from the seat together with the pilot, supports his/her vital functions after landing or water landing, makes the pilot search easier, and the PSN-1 life raft supports the pilot floatation on the surface of water.


The K-36L-3,5Ya ejection seat realizes the crewmember emergency escape within the range of equivalent airspeed (VE.) from 0 to 1050 km/h, at Mach number up to 1.0 and at aircraft flight altitude from 0 to 1300 m, including takeoff, landing run and «Н=0, V=0» mode. The seat is used with the KKO-15 set of protective gear and oxygen equipment.

The seat installation mass does not exceed 86 kg, including the survival kit.


Yak -130