Atcham Tower,
I guess the full story is in this link:
http://www.acesofww2.com/Canada/aces/beurling.htm
Not much detail what Beurling encountered during this mission. Did he just watch the bombers forming up over England, or did he actually make the Channel crossing?
In all cases, he flew in a P-47...!
Thanks for the additional info about Atcham. Indeed a very likely spot.
Regards,
Leendert