“Gee was used for the first time on 8th March 1942 and Essen was our target. Gee
was of great assistance, but Essen was just about the end of its range.” says dad in his book.
However, at another time it wasn’t working and the navigator had to use DR (dead reckoning). When their plane landed and they were debriefed they were reprimanded for not using it. On a further occasion, after having sustained flak damage but landing safely, dad was disarming it and it blew up in his face rendering him blind for a short time because of the shards of glass that went into his eyes and face!
Luckily he recovered. There was a follow-up on the incident years later… read about it in dad’s book ‘Of Stirlings and Stalags: an air-gunner’s tale’ available from Amazon as an ebook or from Lulu Publishers as a paperback.