May 17, 1916
Great Britain:
Royal Naval Air Service begins experiments on parasite fighters. Porte Baby 9800 is fitted to carry Bristol Scout C3028.
Air War:
French pilot George d'Oisy, flying a Nieuport 11, shoots down a Fokker eindecker for victory number 3. German records are uncertain, but a Vizefeldwebel Friedrich Schlindwein was lost on that day, although in a different sector.
North Sea:
Otto Steinbrinck, commanding
UB-18, stops and scuttles British fishing smack
Research, 44 tons, bringing his total to 40 vessels and 36,545 tons.
Herbert Pustkuchen, in
UB-29, stops and sinks British smacks,
Boy Percy, 46 tons,
Boy Sam, 46 tons, and
Wanderer, 47 tons. His score is now 34 vessels and 44,745 tons.
U-74 (Erwin Weisbach) is lost in a mine-handling accident, along with all 34 of her crew.
Kattegat:
British submarine
E-30 torpedoes German freighter SS
Trave, 762 tons, near Halmstad, Norway.
Baltic Sea:
Russian submarine
Volk sinks German freighter SS
Hera, 2,847 tons, in Norrköping Bay, Sweden.
Adriatic Sea:
Friedrich Fändrich, in Austro-Hungarian
U-15, sinks Italian freighter SS
Stura, 2,237 tons, bringing his score to 3 ships and 2,342 tons.
United States:
American motor vessel
Installer, 18 tons, carrying merchandise from Ketchikan to Forrester Island, Alaska, is stranded at Forrester Island. The three crew make it ashore, but the vessel is a total loss. A little over half the merchandise is salvaged.