

(Cessna Model 318E) Production version with two J-85-GE-17A engines, provision for inflight refuelling, increased fuel capacity and strengthened airframe, 577 built.

(Cessna Model 318D) T-37B rebuilt with two J-85-GE-5 engines, a 7.62 mm Minigun in nose and eight underwing stores pylons, 39 conversions. Two former T-37C trainer prototypes converted for counter-insurgency operations with two J-85-GE engines and six underwing pylons as prototypes for the A-37 series, redesignated YA-37A. Provision for SUU-11/A gun pods under wings.Combat range: 460 mi (740 km, 400 nmi) (with maximum payload).Stall speed: 113 mph (182 km/h, 98 kn) at maximum landing weight, wheels and flaps down.Powerplant: 2 × General Electric J85-GE-17A turbojet, 2,850 lbf (12.7 kN) thrust each.

Fuel capacity: 507 US gal (422 imp gal 1,920 L) usable internal fuel (including tip tanks).Airfoil: NACA 2418 (modified) at root, NACA 2412 (modified) at tip.
