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The B class blimps were patrol airships operated by the United States Navy during and shortly after World War I.
The Navy learned a great deal from the DN-1 fiasco.
The result was the very successful B-type airships.
Dr. Jerome Hunsaker was asked to develop a theory of airship design, Lt. John H. Towers returned from Europe having inspected British designs, the Navy sought bids for 16 blimps from American manufacturers.
On 4 February 1917 the Secretary of the Navy directed that 16 nonrigid airships of Class B be procured.
Ultimately Goodyear built 9 envelopes, Goodrich built 5 and Curtiss built the gondolas for all of those 14 ships.
Connecticut Aircraft contracted with U. S. Rubber for its two envelopes and with Pigeon Fraser for its gondolas.
The Curtiss-built gondolas were modified JN-4 fuselages and were powered by OX-5 engines.
The Connecticut Aircraft blimps were powered by Hall-Scott engines.

1.835 seconds.