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The F-111B was not ordered into production and the F-111B prototypes were used for testing before being retired. The planned F-111B was replaced by the smaller and lighter Grumman F-14 Tomcat, which carried over the AWG-9 radar/Phoenix missile system, engines, and a similar swing-wing configuration.
The F-111 suffered problems during initial development, largely related to the engines. A fighter variant intended for the United States Navy, the F-111B, was canceled before production; it was intended for aircraft carrier-based roles, including long-range interception.
The Grumman F-14 Tomcat is an American carrier-capable supersonic, twin-engine, two-seat, twin-tail, all-weather-capable variable-sweep wing fighter aircraft.The Tomcat was developed for the United States Navy's Naval Fighter Experimental (VFX) program after the collapse of the General Dynamics-Grumman F-111B project.
However, due to reliability issues with the intended Pratt & Whitney F401 engines and the intent to incorporate as many of the systems of the failed Navy version of the F-111, the F-111B, into the project, it was deemed that the initial production run of F-14s utilize the F-111B's powerplant. The F-14A's thrust-to-weight ratio was similar to ...
The F-111C entered Australian service after the technical problems were resolved, and the first F-111C was accepted at Nellis Air Force Base on 15 March 1973. [60] On 31 March, the RAAF Washington Flying Unit was formed at McClellan Air Force Base in California with the mission of ferrying the first 12 F-111Cs to Australia. [61]
VFAX for Naval Fighter Attack Experimental was actually two specifications for two US Navy fighter projects. The first was for a low cost lightweight complement for the General Dynamics–Grumman F-111B which could replace the McDonnell F-4 Phantom II for air superiority, escort, and ground attack missions in the early 1960s.
Investigators, he said, will want to know if a mechanical problem with the helicopter’s instruments provided the pilots with incorrect altitude data. They’ll be asking whether the air traffic ...
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