Hi Paul!
I used to live in Whelpley Hill about 10 years ago and the only plane we saw flying out from Bov at that time was Gordon's, I'm pretty sure. For proof of use I think he would be your best bet if he kept logs, I'll try to remember to ask him if he did next time I see him.
If I find out I'll reply here or give you a shout next time I see you in the White Hart
James