RAGIII:
In Alex Imrie's book,
"GERMAN FIGHTER UNITS JUNE 1917-1918", pages 12 and 13, Panorama photo of Lechelle Airfield. In the caption on page 13 he dates the photo on 26 March 1918.
I rechecked my translation in
"Jagd in Flandern Himmel"and it states operations were flown and victories scored in the afternoon of March 26th. So I now have no doubts about that date. The shadows indicate the photos were taken in the mid afternoon, 2 or 3 o'clock.
Ltn.Richard Wenzl arrived at Jasta 11 from Jasta 31 on 27 March 1918. (See
The Jasta Pilots, page 296.
Blue skies,
Dan-San