Unless the canopy has been modified from the RAF standard, it is non-jettisonable. Also, the miniature detonating cord (MDC) is not cleared for manual activation in flight because there is a high risk of injury to the crew (although, obviously, it is fine for ejection because the seat has travelled upwards before the canopy pieces return towards the cockpit). Because of this, in UK service it is flown with the MDC handle safety pin fitted. In the picture, the seat head boxes shown are not representative of the ones fitted to the ejection seats used in the UK in-service aircraft. Therefore, I am curious to know how a manual bail-out from this aircraft could be effected.