90 Years ago this month...
Seattle World Cruiser
The prototype Douglas World Cruiser was delivered to the Army for evaluation in November of 1923. It was built in 45 days at a cost of $23,721. Soon after, Douglas received a contract for four production aircraft.
The prototype Douglas World Cruiser seaplane (s/n 23-1210). It was substituted for DWC Boston (23-1231) late on in the round-the-world trip. "P318" on the tail is the Wright Field test number. (Library of Congress)