All deliveries of new aircraft from the factory to Church Fenton were parked for a day on the far side of the airfield just in case they should explode having been rigged with explosives. I assume it was believed that 24hrs was the longest fuse likely to be used as the IRA might believe that the aircraft would have had a thorough inspection in that time & any device discovered and disarmed. I don’t recall that any did explode.