De Moeren 19 May 1918: five minutes after Adj Willy Coppens landed with his Hanriot HD.1 H-D 24 having scored his 5th victory, thus becoming an ace. He is congratulated by his fellow fighter pilots from l.to r.: Adj P. Dubois, Cdt F. Jacquet, Adj G. Kervyn de Lettenhove, 1SM G. Kervyn de Meerendre, Lt M. de Crombrugghe de Looringhe, Adj A. De Meulemeester and Lt J. Olieslagers.