Admiral William S. Benson, Chief of Naval Operations, to Vice Admiral William S. Sims, Commander, United States Naval Forces Operating in European Waters
Action Copy File No. 16/5/7 C
CABLEGRAM RECEIVED <August 24, 1918.> ALS
Origin Opnav Washington Ser. No. 299
Ref’d to Date
N-1 24 Aug
299 Submarine which was operating off Chesapeake Cape and which sank Norwegian Bark NORDHAV Aug. 17th identified as U-117. Description follows new large mine layer improvement U-70 class, length 262 feet beam greater then that of cruiser.
Armament reported to be 1-5.9 gun forward, 1-4.1 gun aft, 3-22 pounders in echelon abreast conning tower (port gun being foremost of the two within radius, 45 mines, possibly 22 torpedoes probably 4 torpedo tubes. Maximum speed surface probably not greater than 13 knots submerged speed about 8 knots for 1 hour. Has large radius of action and is xxxxxxxx capable of remaining at sea five months 01124 299
925 AM Aug.24, 1918.
Source Note: Cy, DNA, RG 45, Entry 517B. Document reference: “J/1/3.”