mauricehappe

I think the Aircraft is a Farman F30

French pilots. Here's one of the two officers in the plane:
See notes under

I's rather a Farman F.40 (en.wikipedia.org/wiki/Farman_F.40) IMO

I can't find a record of a Captain Hoppe, but this is French Capt. Maurice Happe on the right. His picture accompanies the following article: "This is the most well-known photo of Capitaine Maurice Happe (1882-1930), one of France’s most innovative bombing pioneers. He commanded Groupe de Bombardement 4 as well as Escadrille 29. One of his biographers described Happe in this way: His tall silhouette, all sinew and muscles, in a black artillery uniform without officer’s boards or decoration, stood out against the blue of the Vosges Mountains... He [was] obsessed with one concern: accomplishing everything that was his duty. His gaze softened or turned dark depending on his mood. He was subject to mood swings; there was something of the street Arab in his personality. But when he laughed, his brilliant white teeth reminded one of a wolf’s teeth." :La Guerre Aérienne Illustrée (LGAI)" www.crossandcockade.com/uploads/EscMF29_opt.pdf

Other Bain photos of Capt. Happe:

French pilots. in the back is Capt. Maurice Happe, famous aviator. This photo was used on the cover of a biography: www.livre-aviation.com/LE-CORSAIRE-DE-L-AIR-MAURICE-HAPPE...
In this photo of Happe, he is wearing the medal painted on the nose of the airplane: gallica.bnf.fr/ark:/12148/btv1b9031119w.r=Happe%2C+adjuda... See notes under

See also

Other shots of Capt. Happe. See notes under and see LOC's page on the famous squadron: www.loc.gov/rr/news/topics/escadrille.html