Rotary actuators convert hydraulic, pneumatic or electrical input energy into controlled angular or rotational output motion, encompassing vane-type, rack-and-pinion and helical-spline mechanisms used to drive flight-control surfaces, thrust-reverser sleeves and landing-gear doors, with designs typically qualified to DO-160 environmental standards and incorporating positional feedback via RVDT sensors.
How many distinct aircraft programs each supplier in this area is linked to in our database — a proxy for how widely established a company is across the industry. Bars are relative to the top-ranked supplier.
Whether supply here is concentrated in a few big players or spread across many. Top-5 share is the portion of all program links held by the five largest suppliers. HHI (Herfindahl–Hirschman Index) runs 0–10,000: under ~1,500 is competitive, over ~2,500 is concentrated.
Where the listed suppliers in this area are based, by country of head office. Useful for sourcing, near-shoring and understanding regional strengths.