F-class blimp

{{Infobox aircraft

|name=F class

|image= File:F class blimp.jpg

|caption=NAVY F-1

|type=Engine testbed

|manufacturer=Goodyear-Zeppelin Corporation

|designer=

|first_flight=

|introduction=1918

|retired=1923

|status=

|primary_user=US Navy

|more_users=

|produced=

|number_built=1

|variants=

}}

The F class of US Navy blimps comprised a single airship, built during World War I by Goodyear as one of a group of three small blimps offered to the US government. Two were purchased for the US Navy and one for the US Army. The Navy blimps were designated E-1, F-1, and the Army airship A-1. Classified as an "Experimental Engine Testing Dirigible." F-1 had the same envelope size as the E-1, due to the use of a tractor mounted 125 hp Union engine, the performance was different. F-1 spent its entire career at Hampton Roads (Norfolk, Virginia). It was flown in both tractor and pusher configurations.{{cite book |last= Shock |first= James R.| title=U.S. Navy Airships 1915-1962 |year=2001 |publisher=Atlantis Productions |location=Edgewater Florida |isbn=0-9639743-8-6 |page=34 }} It also may have been flown with a Curtiss OXX engine. F-1 was removed from inventory in November 1923.