seat-certification rule 16g? 26g or 32g?

[Ref https://www.flightglobal.com/news/articles/faa-in-the-hot-seat-24308/]

The controversy over the FAA’s 16G seat-certification rule continues to rumble on. It was introduced in FAR 25.562 Amendment 25-64 as long ago as 1988 and adopted in March 1992 under technical standard order (TSO) C127 for all new commercial aircraft.

head-injury criterion (HIC) standard which seat manufacturers say is the most difficult with which to comply. The HIC value is computed using a formula, which takes account of impact, acceleration of the head and duration of the event.

on the horizon – and strongly opposed by the General Aviation Manufacturers Association and the Regional Airlines Association – are the more stringent standards being considered by the FAA for commuter aircraft with less than 20 seats. These would require horizontal and vertical accelerations, of 26G and 32G respectively, as against 14G and 16G for other aircraft.

 

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