If the pilot had to pull the "d" ring (ejection handle) in an emergency, the cables would snap the wearer's feet back under the seat to ensure a smooth and safe ejection from the aircraft.

当发生紧急情况，飞行员需要弹射时，缆绳会将马刺佩戴者的足部从座椅下方拉出来，以确保弹射安全。

youdao

To make an emergency exit from an aircraft by deployment of an ejection seat or capsule.

借助弹射座椅或太空舱迅速离开飞行器。

youdao

Following the incident, the RAF grounded all non-essential flying of all Hawk T1 aircraft fitted with the Mk10 Martin Baker-built ejection seat "as a precaution".

BBC: Flight Lieutenant Sean Cunningham

Following the incident at the Lincolnshire airbase, the RAF grounded all non-essential flying of all Hawk T1 aircraft fitted with the Mk10 Martin Baker-built ejection seat for one month "as a precaution".

BBC: Red Arrows pilot death: No charges over fatality say CPS