XF may refer to:

  • XF (grade), a letter grade used at some U.S. colleges, assigned to students who are caught performing acts of academic dishonesty
  • Jaguar XF, a car made by Jaguar since 2008
  • DAF XF, a truck made by DAF Trucks
  • Vladivostok Air IATA airline code
  • XF series, a seres of experimental aircraft
  • The X Factor (TV series), a television music talent show franchise
  • The X-Files (TV series), a Sci-Fi television show that ran from 1993 to 2002

Other articles related to "xf":

Lockheed XF-104 - Operational History - Testing Conclusions
... estimates were accurate and that even when fitted with the low powered J65 engine, the XF-104 flew faster than the other Century Series fighters being developed at the time ... The XF-104's ceiling at 60,000 ft (18,000 m) was 7,000 ft (2,100 m) higher than predicted, and it exceeded estimated speed and drag figures by two to three percent ... The yaw damper of the XF-104 was found to be ineffective and the rudder did not positively center, these problems were corrected by revising the rudder control system ...
Lockheed XF-104
... The Lockheed XF-104 was a single-engine, high-performance, supersonic interceptor prototype for a United States Air Force (USAF) series of lightweight and simple fighters ... The XF-104 was the forerunner of over 2,500 Lockheed F-104 Starfighters ... The XF-104's maiden flight came in February 1954 ...
Lockheed XF-104 - Operational History - Testing and Evaluation
... The first XF-104 (Lockheed 083-1001, s/n 53-7786) was transported to Edwards AFB amidst high secrecy during the night of 24–25 February where Lockheed test pilot ... On 28 February 1954, the XF-104 made a planned hop of about five ft off the ground during a high-speed taxi, but its first official flight took place on 4 March 1954 ... Bad weather kept the XF-104 on the ground until 26 March when further flights were carried out with the landing gear retracting normally ...