Spooky how these things come up.
From this day in history 23 Aug 1921:
HM Airship R38 - which had been sold to the US Navy while under construction - broke up in the air over Hull during an acceptance test flight. Air Cdre E. M. Maitland, Cdr L. H. Maxwell USN, twenty-seven officers and men of the RAF and fifteen officers and men of the USN were killed. The captain of the R38 and three crew members survived.
Taken from: The Royal Air Force Day by Day by Air Cdre G Pitchfork