hi simba
first post here, but i have just finished reading "Kommando - German special forces of World War Two" by James Lucas (cassell reprinted 2003) in which there are photos of the DFS 230 being towed by JU52's on the eban emael raid
also try the magnificent "Warplanes of the Third Reich" by William Green, which also has photo's of DFS230 towed by JU52 - have had my copy since 1972 and would not part with it for love nor money !
oldmadbadger