COMBAT HELICOPTER Russian patent published in 2008 - IPC B64D7/08 F02C9/48 B64D27/10 

FIELD: aircraft engineering.

SUBSTANCE: combat helicopter comprises gas-turbine engines and missile complex. The gas-turbine engines are equipped with a gas-dynamic stability and power short-time increase system incorporating the nozzles to inject water the inlet on compressors of every engine, solenoid valves to feed water into the said nozzles, a water cylinder with pipeline feeding water from the engine last stage compressors and solenoid valve control circuit. To prepare the engines for effects of the missile exhaust jets, the aforesaid solenoid valve electric control circuit is connected to the push-button "start" of the missile control circuit via the time relay to shut-off water feed in preset time intervals. The missile control circuit incorporates, in series with the said "start" push-button, the time relay to delay the missile departure during the engine speeding up to the increased gas dynamic stability. Water feed to the nozzles is effected by two solenoid valves connected in parallel to maintain water feed in case one of the said valves fails.

EFFECT: reduced effect of missile exhaust gases on engine operation.

2 cl, 1 dwg