The Army’s Curtiss JN-4Ds, with a range of only 88 miles, had their standard 90hp OX-5 engines with 150-hp Hispano-Suizas. (Library of Congress)
The Army’s Curtiss JN-4Ds, with a range of only 88 miles, had their standard 90hp OX-5 engines with 150-hp Hispano-Suizas. (Library of Congress)