[Dan_San_Abbott]

CWatson:
I can't say there was a "holy grail" in the two sets of photos. I suspect Greg Van Wyngarden has copies of these photos. The photos were taken on two separate days, the 26th and 27th or 27th and 28th of March 1918. The photos on the first day is in bright sunlight with strong shadow and on the second day overcast sky and weak shadows.
From Alex Imrie's book, "The Fokker Triplane" photos 92, 94 and 95 were taken on the first day. With DR.I 477/17 in front of the fourth Besseneau Hangar, Jasta 6 in line-up in front of hangars 1 and 2 and Jasta 11 in front of hangars 3 and 4. There were more than these six photos. There were photographs of Jasta 6 and 11 from behind the line-up and in front of the line-up of both Jasta 6 and 11. On the second day DR.I 477/17 was in the line-up next to Ltn. Richard Wenzel's DR.I 588/17 with the checkered leading edge, photos 98, 99 and 100. Photos 98,99 and 100 were taken on the second day.
In regard to Dr.I 477/17, being in front of the hangar and the engine and propeller covered with protective covers, only indicates to me, it was through for the day. The other machines in the line-up were still operational.
The move from Awoingt to Lechelle was made with ground personnel going by truck and arriving about 6:00 p.m. The aircraft were flown in on the afternoon of 26 March 1918. flight operations began early on the 27th. Ref."Jagd in Flandern Himmel".
Blue skies,
Dan-San