[421] FLIGHT ASSESSMENT OF FULL COVERAGE AND SKELETAL ANTI-G TROUSERS

摘要

INTRODUCTION: Due to obsolescence of the mid-layer fabric, UK full coverage anti-G trouser (FCAGT) and 5-bladder skeletal anti-G trouser (SAGT) design has been changed to include a replacement Nomex material. Following satisfactory performance in a centrifuge assessment at 1 G.s~(-1) onset rate, a flight trial was carried out comparing G protection in the new and legacy garments to determine whether the change in material properties had influenced the circulatory support afforded. METHODS: High G experienced aircrew (n=10) completed flights in a HawkT Mk1 fast jet aircraft wearing new or legacy FCAGT (N-FCAGT or L-FCAGT) allocated in a balanced order. In a different series of flights, aircrew (n=10) wore new and legacy SAGT (N-SAGT and L-SAGT). Flights comprised a G warm-up, two series of high G onset (10G.s~(-1)) turns, each with incrementing plateau G up to +9Gz for FCAGT and +8Gz for SAGT, and structured air combat maneuvering.