Brilliant!
MacS - I suspect it depends on when in the war such work happened. I have no drawings, I bet the Oberusel, Clerget and Gnome of the early part of the war used exactly the same mountings, so swapping would be easy
Swapping a Mercedes for a Beardmore would be significantly different!
Jamo - That first picture looks rather like a Mercedes engine, the rest of the materiel appears to be RFC/RAF so I'm guessing this an ARD.
Looks like the scrapyards I used to visit when I first owned a car, right down to the quantity of mud
The second one is the missing image from The Aerodrome - thank you! And it shows the sort of details I am interested in: the gantry, the trolley to move the engine around, the transport crate on the right. Wonderful
Richard