KF J.60 Gungnir

The KF J.60 Gungnir was a Mach 2 Capable Interceptor designed and built for the Royal Ringeriker Air Force by Kongelig Flyfabrikk, entering service in 1960. It features a distinctive stacked twin engine layout. It was notable for it's rapid rate of climb, this however came at the cost of limited range, leaving the earlier models to serve as point-defense interceptors as designed. The specification that resulted in the J.60 was issued as the supersonic interceptor counterpart to what became the J.60 Spurvhauk, the two types are unique in sharing a designation due to the quirks of the Ringeriker designation system.

Later Modifications would see an increase in range as well as the integration of reconnaissance and limited ground attack capability.

Variants

 * J.60: Original variant accepted into service in 1960, armed with twin 30mm Cannons and two Lyn AAMs.
 * JT.60: Two seat side-by-side layout operational conversion trainer accepted into service alongside the J.60 in 1960.
 * J.60F1: Improved variant entering service in 1964, featuring a large enlarged ventral tank and an inflight refuelling probe, providing an increase in combat radius.
 * J.60F2: Further Improved model developed in 1969, introducing the carriage of overwing fuel tanks.

General Characteristics

 * Crew: 1
 * Length: 16.84 m
 * Wingspan: 10.62 m
 * Height: 5.97 m
 * Wing Area: 44.08 m2
 * Empty Weight: 14,092 kg
 * Max Takeoff Weight: 20,752 kg
 * Powerplant: 2x RAEC afterburning turbojet engines, 12,690 lbf (56.4 kN) thrust each dry, 16,360 lbf (72.8 kN) with afterburner

Performance

 * Maximum speed: Mach 2.27 (1,500 mph+ at 40,000 ft)
 * Range: 738 nmi (849 mi, 1,367 km)
 * Combat range: 135 nmi (155 mi, 250 km) supersonic intercept radius
 * Service ceiling: 18,000 m (60,000 ft)
 * Zoom ceiling: 70,000 ft (21,000 m)
 * Rate of climb: 20,000 ft/min (100 m/s) sustained to 30,000 ft (9,100 m), Zoom climb 50,000 ft/min
 * Time to altitude: 2.8 min to 36,000 ft (11,000 m)

Armament

 * Guns: 2× Stalgilde AK.5 30 mm revolver cannon
 * Hardpoints: 2x Lyn AAMs on cheek mounted Pylons

Users
 Ringerike
 * Formerly in service with the Royal Ringerike Air Force between 1960 and 1992