Sikorsky develops new counter-vibration system
Sikorsky (Booth Nos.

Sikorsky (Booth Nos. 2737-2743) has completed rig testing of an active counter-vibration system that could make a helicopter ride “jet smooth,” thanks to hub-mounted actuators that counter loads at their source, the company claims. The hub-mounted vibration suppression system (HMVS) is expected to yield improvements in comfort, weight and durability, and, the company said, it could be in service in 2015.

The HMVS was one of the key subsystems on the X2 compound demonstrator, enabling it to reach its vibration goal last year. At 250 knots, the vibration level was said to be similar to that of the Black Hawk military transport at its 140-knot cruise speed. Sikorsky plans to certify the HMVS for production helicopters.

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