Graham
I am now going on memory but I think V.M. Yeates
who wrote the best WW1 air novel
Winged Victory
served in the same squadron as Mclaren. He describes the flight leader as 'Mac'. If I am correct you have a brilliant writer's description of a superb fighting machine.
The book has been published in paper back and it should ber easy to obtain a copy. Probably somebody will shoot me down and say it was another Mac.
Regards Peter S