Operation LANA: To celebrate the 50th anniversary of Naval aviation (L is the Roman numeral for 50 and ANA stood for Anniversary of Naval Aviation) on 24 May 1961, Phantoms flew across the continental United States in under three hours and included several tanker refuelings. The fastest of the aircraft averaged 869.74 mph (1,400.28 km/h) and completed the trip in 2 hours 47 minutes, earning the pilot (and future NASA Astronaut), Lt. Richard Gordon, and navigator, Lt. Bobbie Long, the 1961 Bendix trophy.

Operation Sageburner: On 28 August 1961, a Phantom averaged 902.769 mph (1,452.826 km/h) over a three-mile (1.86 km) course flying below 125 ft (40 m) at all times. Navy Commander J.L. Felsman was killed during the first attempt at this record on 18 May 1961 when his aircraft disintegrated in the air after pitch damper failure.

Operation Skyburner: On 22 December 1961, a modified Phantom with water injection set an absolute world record speed of 1,606.342 mph (2,585.086 km/h).

On 5 December 1961, another Phantom set a sustained altitude record of 66,443.8 ft (20,252.1 m).

Operation High Jump: A series of time-to-altitude records was set in early 1962; 34.523 seconds to 3,000 m (9,840 ft), 48.787 seconds to 6,000 m (19,680 ft), 61.629 seconds to 9,000 m (29,530 ft), 77.156 seconds to 12,000 m (39,370 ft), 114.548 seconds to 15,000 m (49,210 ft), 178.5 seconds to 20,000 m (65,600 ft), 230.44 seconds to 25,000 m (82,000 ft), and 371.43 seconds to 30,000 m (98,400 ft). Although not officially recognized, the Phantom zoom-climbed to over 100,000 ft (30,480 m) during the last attempt.

All in all, the Phantom set 16 world records. With the exception of Skyburner, all records were achieved in unmodified production aircraft. Five of the speed records remained unbeaten until the F-15 Eagle appeared in 1975.

Flight characteristics

In air combat, the Phantom's greatest advantage was its thrust, which permitted a skilled pilot to engage and disengage from the fight at will.

The massive aircraft, designed to fire radar-guided missiles from beyond visual range, lacked the agility of its Soviet opponents and was subject to adverse yaw during hard maneuvering. Although thus subject to irrecoverable spins during aileron rolls, pilots reported the aircraft to be very communicative and easy to fly on the edge of its performance envelope. In 1972, the F-4E model was upgraded with leading edge slats on the wing, greatly improving high-angle-of-attack maneuverability at the expense of top speed.

The J79 engines produced copious amounts of black smoke at military power which made the Phantoms easy to spot from a distance, a severe disadvantage in air combat against smaller aircraft. Pilots could eliminate the smoke by using afterburner, but at the cost of fuel efficiency. Some pilots adopted the procedure of running one engine in dry thrust at normal power setting, and the other in afterburner, resulting in the same total thrust as using both engines at full rated military power without generating the tell-tale smoke trail.

The F-4's biggest weakness, as it was initially designed, was its lack of an internal cannon. For a brief period, doctrine held that turning combat would be impossible at supersonic speeds and little effort was made to teach pilots air combat maneuvering. In reality, engagements quickly became subsonic. Furthermore, the relatively new heat-seeking and radar-guided missiles at the time were frequently reported as unreliable and pilots had to use multiple shots just to hit one target. To compound the problem, rules of engagement in Vietnam precluded long-range missile attacks in most instances, as visual identification was normally required. Many pilots found themselves on the tail of an enemy aircraft but too close to fire short-range Falcons or Sidewinders. Although in 1967 USAF F-4Cs began carrying SUU-16 or SUU-23 external gunpods containing a 20 millimeter M61 Vulcan Gatling cannon, USAF cockpits were not equipped with lead-computing gunsights, virtually assuring a miss in a maneuvering fight. Some Marine Corps aircraft carried two pods for strafing. In addition to the loss of performance due to drag, combat showed the externally mounted cannon to be inaccurate, yet far more cost-effective than missiles. The lack of cannon was finally addressed by adding an internally mounted 20 millimeter M61 Vulcan on the F-4E.

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