The Convair F-106 Delta Dart was the primary all-weather interceptor aircraft for the United States Air Force from the 1960s through the 1980s. Designed as the so-called "Ultimate Interceptor", it has proven to be the last dedicated interceptor in USAF service to date. It was gradually retired during the 1980s, with the QF-106 drone conversions of the aircraft being used until 1998.

The F-106 emerged from the USAF's 1954 interceptor program of the early 1950s as an advanced derivative of the F-102 known as the "F-102B", for which the United States Air Force placed an order for in November 1955. The aircraft featured so many modifications and design changes it became a new design in its own right, redesignated F-106 on June 17th, 1956.

The F-102's delta wing had to be redesigned with an area ruled fuselage to achieve supersonic speed in level flight. To exceed Mach 2, the largely new F-106 featured a more powerful Pratt & Whitney J-75-P-17 afterburning turbojet with enlarged intake diameter to compensate for the increased airflow requirements and a variable geometry inlet duct, which allowed the aircraft improved performance particularly at supersonic speeds, as well as permitting a shorter inlet duct. The fuselage was cleaned up and simplified in many ways featuring a modified, slightly enlarged wing area and a redesigned vertical tail surface. The aircraft's exhaust nozzle featured a device known as an idle thrust reducer, which allowed taxiing without the jet blast blowing unsecured objects around, without adversely affecting performance at high thrust levels, including afterburners. The fuselage was also slightly longer than the F-102 Delta Dagger's.

The first prototype F-106, an aerodynamic test bed, flew on December 26th, 1956, from Edwards Air Force Base, with the second, fitted with a fuller set of equipment, following 26 February 1957. Initial flight tests at the end of 1956 and beginning of 1957 were disappointing, with performance less than anticipated, while the engine and avionics proved unreliable. These problems, and the delays associated with them nearly led to the abandoning of the program, but the Air Force decided to order 350 F-106s instead of the planned 1,000. After some minor redesign, the new aircraft, designated F-106A were delivered to 15 fighter interceptor squadrons along with the F-106B two-seat combat-capable trainer variant, starting in October 1959.

The F-106 was envisaged as specialized all-weather missile armed interceptor to shoot down bombers. It was complemented by other Century Series fighters for other roles such as daylight air superiority or fighter-bombing. To support its role, the F-106 was equipped with the Hughes MA-1 integrated fire-control system, which could be linked to the Semi-Automatic Ground Environment (SAGE) network for ground control interception (GCI) missions, allowing the aircraft to be steered by controllers. The MA-1 proved extremely troublesome and was eventually upgraded more than 60 times in service. Similar to the F-102, it was designed without a gun, or provision for carrying bombs, but it carried its missiles in an internal weapons bay for clean supersonic flight. It was armed with four Hughes AIM-4 Falcon air-to-air missiles, along with a single GAR-11/AIM-26A Falcon nuclear-tipped semi-active radar (SAR)-homing missile (which detected reflected radar signals), or a 1.5 kiloton-warhead AIR-2 (MB-2) Genie air-to-air rocket intended to be fired into enemy bomber formations. Like its predecessor, the F-102 Delta Dagger, it could carry a drop tank under each wing. Later fighters such as the McDonnell Douglas F-4 Phantom II and McDonnell Douglas F-15 Eagle carried missiles recessed in the fuselage or externally, but stealth fighters would re-adopt the idea of carrying missiles or bombs internally for reduced radar signature.

Pictured here is a 1:72 scale replica of a USAF Convair F-106A Delta Dart interceptor that served with the 318th Fighter-Interceptor Squadron, then deployed to McChord Air Force Base, during 1983. Sold Out!

Dimensions:
Wingspan: 6-1/4-inches
Length: 11-1/4-inches

Release Date: March 2015

Historical Account: "Green Dragons" - The 318th Fighter Interceptor Squadron was reactivated by Air Defense Command in May 1947 at Mitchell Field, New York. In December 1947, it was transferred to Hamilton Field, California where it received its first aircraft, P-61 Black Widows which had been pressed into the air defense mission. In the spring of 1948 the squadron received new F-82 Twin Mustangs and in November 1948 moved to McChord AFB, Washington. In the fall of 1950 the squadron transitioned into jet F-94As Starfire Interceptors.

In June 1953, the squadron moved to Thule Air Base, Greenland, under control of the Northeast Air Command. The squadron came back under ADC in August 1954 when it was moved from Thule to Presque Isle AFB, Maine with F-89D Scorpions. In August 1955 the squadron returned to McChord AFB and transitioned into F-86D Sabres, and became part of the 25th Air Division covering the Northwest Air Defense Sector.

In March 1957 the squadron began a transition into F-102A Delta Daggers and three years later in March 1960 into F-106 Delta Darts. On October 22nd, 1962, before President John F. Kennedy told Americans that missiles were in place in Cuba, the squadron dispersed one third of its force, equipped with nuclear tipped missiles to Paine Air Force Base at the start of the Cuban Missile Crisis. These planes returned to McChord after the crisis.

On March 15th, 1963m two Soviet bombers overflew Alaska and Alaskan Air Command F-102s were unable to intercept them. The response to this intrusion was to deploy ten F-106s from the squadron and its sister unit, the 498th Fighter-Interceptor Squadron to Alaska in what was called Operation White Shoes. However, maintaining these aircraft for an extended period of time put a strain on the 325th wing's combat readiness back at McChord, and eventually a detachment of maintenance personnel was established to maintain the planes in Alaska. The unit got relief from this commitment while it was upgrading its F-106s from the 1st Fighter-Interceptor Wing, which relieved it from March to June 1964. Operation White Shoes terminated in 1965 and the unit's planes returned home.

On March 22nd, 1968, the 318th FIS deployed to Osan AB, Republic of Korea from McChord AFB, WA to provide air defense following the January 26th, 1968, North Korea seizure of the USS Pueblo. This marked the first time in history that Aerospace Defense Command F-106 fighter interceptors had flown to a critical overseas area, using in-flight refueling along with tactical air units.

It returned to the United States after the Pueblo Crisis ended, and flew F-106s throughout the 1970s. The 318th converted to F-15 Eagles in 1983.