Powerplant: 1 × IAl Bedek-built General Electric J79-J1E turbojet, 52.9 kN (11,900 lbf) thrust dry, 79.62 kN (17,900 lbf) with afterburner
Maximum speed: 2,440 km/h (1,520 mph, 1,320 kn) above 11,000 m (36,089 ft)
Maximum speed: Mach 2.3
Combat range: 768 km (477 mi, 415 nmi) (ground attack, hi-lo-hi profile, seven 227 kg (500 lb) bombs, two AAMs, two 1,300 l (340 US gal; 290 imp gal) drop tanks)
Service ceiling: 17,680 m (58,010 ft)
Rate of climb: 233 m/s (45,900 ft/min)
Guns: 2× Rafael-built 30 mm (1.18 in) DEFA 553 cannon with 140 rpg
Rockets: assortment of unguided air-to-ground rockets including the Matra JL-100 drop tank/rocket pack, each with 19× SNEB 68 mm rockets and 66 US gallons (250 liters) of fuel
Missiles: 2× AIM-9 Sidewinders or Shafrir or Python-series AAMs; 2× Shrike ARMs; 2× AGM-65 Maverick ASMs
Bombs: 5,775 kg (12,732 lb) of payload on nine external hard points, including bombs such as the Mark 80 series, Paveway series of LGBs, Griffin LGBs, SMKBs, TAL-1 OR TAL-2 CBUs, BLU-107 Matra Durandal, reconnaissance pods or Drop tanks
Kfir C.1: Basic production variant.
F-21A Kfir: 25 upgraded Kfir C.1 aircraft were leased to the USN and USMC for an aggressor role and were designated F-21A Lion.
These aircraft had been modified and included canards on the air intakes.
These canards greatly improved the aircraft manoeuvrability and slow speed control, and were adopted on later variants.
Kfir C.2: An improved C.1 that featured many aerodynamic improvements.
Changes included “dogtoothed” leading edges on the wings, small strakes under the nose and a larger sweep angle of the canards.
Kfir TC.2: A two-seat training variant developed from the C.2. It has a longer and lowered nose to improve the pilot’s view.
Kfir C.7: Vastly modified variant. Most if not all C.2 aircraft were modified to this variant.
It included an improved J79-GE-J1E engine that offered more 1,000 lbs of thrust at full afterburner (and as a result increasing the Maximum Take-off Weight by 3,395 lbs), 2 more hard points under the air intakes, better avionics such as the Elta EL/M-2021B radar, HOTAS configured cockpit and in flight refuelling capability.
Kfir TC.7: A two-seat training variant developed from the C.7.
Kfir C.9: Proposal for Argentina powered by Atar 9K50. Cancelled.
Later developed as South Africa’s Atlas Cheetah
Kfir C.10: A variant developed especially for export.
The most important change is the adaptation of the Elta EL/M-2032 radar.
Other changes include HMD capability and two 127×177mm MFDs. This variant is also known as Kfir CE ( Ecuadorean version ) and Kfir COA (Colombian version).
Kfir TC.10: Upgraded version of the TC.7 for the Colombian Air Force.
Kfir C.12: Upgraded version of the C.7 for the Colombian Air Force, a C.10 without the Elta EL/M-2032 radar.
Kfir Tzniut: Reconnaissance version of the C.2.
Kfir Block 60: Upgraded version of the C.10, The main feature of this variant is the use of AESA radar, proposed to the Bulgarian Air Force and Colombian Air Force.
As of January 2014 Argentina is reported to be interested in a US$500m deal for eighteen Block 60 to replace its planned acquisition of second-hand Mirage F1M from Spain.
Kfir NG: Upgraded version, short for Next-Generation. Offered to current and former operators Colombia, Ecuador and Sri Lanka, revealed at Paris Air Show 2019.