Quote Originally Posted by oldblue
* Straightsix,

nalilito pa din ako sa mga alias ng F series

F1 - Mirage or Tiger
F5 - Mirage or Tiger
F14 - ???
F15 - meron ba nito? parang meron?
F16 - Falcon
F18 - Hornet

alin dyan ang pang navy - pang army.
Of those you listed ...

US Air Force:
F-15 Eagle
F-16 Fighting Falcon or simply Falcon.

US Navy:
F-14 Tomcat
F-18 Hornet

Notes:
F-5A/B Freedom Fighter, or Tiger II for later variants, served with allied countries, while the F-14 Tomcat (a Navy plane), served in the Iranian Air Force. The US Navy and the US Air Force often have different fighters, save for a few types they had in common like the F-4 Phantom II, though the USAF certainly didn't use the FH-1 Phantom I

The F1 you refered to is a variant of the French aircraft, the Dassault Mirage, where F1 is a variant designation (Mirage I, II, IIIc, F1, etc.) versus the American type designator, F being for fighters.

The first air units of the US was under the Army, hence US Army Air Corps. This later changed to US Army Air Force in 1941, and then to the present distinct branch US Air Force since 1947. At present, I am not aware of any fixed-wing fighter under the US Army, the Harrier/Super Harrier and F/A-18's being under the US Marine Corps.