Northrop P-61 Black Widow
Variants
All models and variants of the P-61 were produced at Northrop's Hawthorne, California manufacturing plant.

Northrop P-61 Black Widow

Section Title: Variants
Table Section Text: All models and variants of the P-61 were produced at Northrop's Hawthorne, California manufacturing plant.

Designation	Changes from previous model

XP-61	The first two prototypes.

YP-61	Pre-production series; 13 built.

P-61A-1	First production version, R-2800-10 engines producing 2,000 hp (1,491 kW); 45 built, the last seven without the turret.

P-61A-5	No turret, R-2800-65 engines producing 2,250 hp (1,678 kW); 35 built.

P-61A-10	Water injection to increase duration of maximum power output; 100 built.

P-61A-11	One hardpoint under each wing for bombs or fuel tanks; 20 built.

P-61B-1	Nose stretched 8 in (20 cm), SCR-695 tail warning radar; 62 built.

P-61B-2	Reinstated underwing hardpoints as on P-61A-11; 38 built.

P-61B-10	Four underwing hardpoints; 46 built.

P-61B-11	Reinstated turret with two 0.50 in (12.7 mm) machine guns; five built.

P-61B-15	Turret with four 0.50 in (12.7 mm) machine guns; 153 built as largest production run of any P-61 version.

P-61B-16	Turret armament reduced to two machine guns; six built.

P-61B-20	New General Electric turret with four machine guns; 84 built.

P-61B-25	Turret automatically aimed and fired by the APG-1 gun-laying radar connected to an analogue computer; six built.

P-61C	Turbosupercharged (General Electric CH-5-A3) R-2800-73 engines producing 2,800 hp (2,088 kW), top speed increased to 430 mph (374 kn, 692 km/h) at 30,000 ft (9,145 m).

TP-61C	P-61Cs converted to dual-control training aircraft.

XP-61D	One P-61A-5 (number 42-5559) and one P-61A-10 (number 42-5587) fitted with GE CH-5-A3 turbosupercharged R-2800-14 engines; cancelled when P-61C entered production.

XP-61E	Two P-61B-10s (numbers 42-39549 and 42-39557) converted to daytime long-range escort fighters. Tandem crew sat under a blown canopy which replaced the turret, additional fuel tanks were installed in place of the radar operator's cockpit in the rear of the fuselage pod, and four 0.50 in (12.7 mm) machine guns took place of the radar in the nose (the 20 mm/.79 in ventral cannon were retained as well).

XP-61F	Abandoned conversion of one P-61C to XP-61E standard.

P-61G	Sixteen P-61B converted for meteorological research.

F-15A Reporter	Photoreconnaissance variant with a new center pod with pilot and camera operator seated in tandem under a single bubble canopy, and six cameras taking place of radar in the nose.

F2T-1N	Twelve USAAF P-61B's transferred to the United States Marine Corps.

Sentence(s)

Engine R-2800-10 produces 2,000 hp (1,491 kW).

final_sentence: Engine R-2800-10 produces 2,000 hp (1,491 kW).