Hey Dora, unless there were two at Guildford, I was the Instructor in that start fire.
Student would NOT take advice, saw the puff of flame, let go the starter, put his foot on my N#&$ on the way out, passed me at the speed of light.
Fire went out, consumed the air cleaner, fire crew couldn't find us as there was no longer a fire.
I did a couple of charters in that one, AMI, around April '67