Northrop YB-35 / YB-49 / B-2 Flying Wings PDF eBook + Aircraft Flight Manuals

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  • 10 magazines, 5 manuals, & photos
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February 1986

  • North American XB-70 Valkyrie
  • Northrop’s YB-49 Flying Wing

December 1988

  • Northrop’s top secret flying wing interceptor, the XP-56 Black Bullet
  • Mission from Da Nang, Vietnam
  • Air defense, the new Air Guard mission

February 1990

  • Interview the designer of the B-2 Stealth Bomber

April 1996

  • Replacing SAC Air Combat Command
  • How Spitfire & Typhoon were Converted for Tactical Close Support

April 1997

  • Northrop’s Flying Wing Prototypes
  • 1937 Army Air Corps Maneuvers
  • Conquering the Arctic, the Great 1929 Trans-Siberian Flight

July 1998

  • Rocket-powered Kamakazes, Japan’s last ditch suicide flying bombs
  • XP-56 Black Bullet, Prototype Mustang
  • Flying Wing Bombers
  • F-89 Scorpion
  • SM-62 Snark

March 2000

  • America’s Fighter War in the Pacific
  • The Great SuperBomber Fly-Off

March 2004

  • World War II Bombing
  • X-15 Accidents
  • Operation Iraqi Freedom
  • Passenger Helicopters
  • Cross Flying Wing Concept

March 2005

  • Me-262 – First Jet Fighter, the real story
  • Boeing’s Flying Wings – Would they have had a chance in World War II?
  • Factory Fresh: F-104 Starfighter
  • Caravelle! World’s first rear-engine jet

May 2006

  • British aviation firsts – VTOL fighters to jet airliner to aircraft carrier deck
  • Did Pratt’s biggest engine power the XB-35 flying wing?
  • Douglas RB-66 – Secret recon jet of the cold war
  • R-4360 WASP major

Manuals & Photos

  • XB-35 Pilot’s Handbook
  • XB-35 Erection & Maintenance, 1947
  • YB-49 Flight Handbook, 1949
  • YRB-49A Flight Handbook, 1950
  • YB35-YB49 Parts Catalog, 1948
  • Over 375 photos of the Northrop X324, MX334, N1M, N9M, XP79, XB-35, YB-49, and B-2 Flying Wings

Northrop Flying Wings

  • YB-35
  • YB-49
  • B-2
  • N-1M
  • N-9M
  • XP-56
  • XP-79B
  • Videos

Northrop YB-35

General Characteristics

  • Crew: 9: pilot, copilot, bombardier, navigator, engineer, radio operator, three gunners
  • Length: 53 ft 1 in (16.2 m)
  • Wingspan: 172 ft (52.2 m)
  • Height: 20 ft 3 in (6.2 m)
  • Wing area: 4,000 ft² (371.6 m²)
  • Aspect ratio: 7.4
  • Fuselage diameter: 9 ft 6 in (2.9 m)
  • Empty weight: 89,300 lb (40,590 kg)
  • Loaded weight: 180,000 lb (81,647 kg)
  • Max. takeoff weight: 209,000 lb (94,802 kg)
  • Powerplant: 2 × Pratt & Whitney R-4360-17 and 2× R-4360-21 radial engines, 3,000 hp (2,237 kW) each

Performance

  • Maximum speed: 393 mph (632 km/h)
  • Range: 8,150 mi (13,100 km)
  • Service ceiling: 39,700 ft (12,100 m)
  • Rate of climb: 625 ft/min (3.2 m/s)
  • Wing loading: 45 lb/ft² (220 kg/m²)
  • Power/mass: 0.07 hp/lb (0.11 kW/kg)

Armament

  • Guns: 20 × .50 in (12.7 mm) M3 Browning machine guns
  • Bombs: 51,070 lb (23,210 kg)

Northrop YB-49

General Characteristics

  • Crew: 6
  • Length: 53 ft 1 in (16.18 m)
  • Wingspan: 172 ft 0 in (52.43 m)
  • Height: 15 ft 2 in (4.6 m)
  • Wing area: 4,000 ft² (371.6 m²)
  • Airfoil: NACA 65-019 root, NACA 65-018 tip
  • Empty weight: 88,442 lb (40,116 kg)
  • Loaded weight: 133,569 lb (60,585 kg)
  • Max. takeoff weight: 193,938 lb (87,969 kg)
  • Aspect ratio: 7.2
  • Powerplant: 8 (6 J35-A-19 on the YRB-49A) × Allison J35-A-15 turbojets, 4,000 (5,000 for J35-A-19) lbf (17 kN) each

Performance

  • Maximum speed: 493 mph (793 km/h)
  • Cruise speed: 365 mph (587 km/h)
  • Range: 9,978 mi (16,057 km) maximum[19]
  • Combat radius: 1,615 mi (1,403 nmi, 2,599 km) with 10,000 lb bombload
  • Service ceiling: 45,700 ft (13,900 m)
  • Rate of climb: 3,785 ft/min (19.2 m/s)
  • Wing loading: 33 lb/ft² (163 kg/m²)
  • Thrust/weight: 0.23

Armament

  • Guns: 4 × .50 in (12.7 mm) machine guns (to be mounted in rotating “stinger” tail cone on all production aircraft)
  • Bombs: 16,000 lb (7,260 kg) of ordnance

Northrop-Grumman B-2A Block 30 Spirit

General Characteristics

  • Crew: 2: pilot (left seat) and mission commander (right seat)
  • Length: 69 ft (21.0 m)
  • Wingspan: 172 ft (52.4 m)
  • Height: 17 ft (5.18 m)
  • Wing area: 5,140 ft² (478 m²)
  • Empty weight: 158,000 lb (71,700 kg)
  • Loaded weight: 336,500 lb (152,200 kg)
  • Max. takeoff weight: 376,000 lb (170,600 kg)
  • Fuel Capacity: 167,000 pounds (75,750 kg)
  • Powerplant: 4 × General Electric F118-GE-100 non-afterburning turbofans, 17,300 lbf (77 kN) each

Performance

  • Maximum speed: Mach 0.95 (550 knots, 630 mph, 1,010 km/h) at 40,000 ft altitude / Mach 0.95 at sea level
  • Cruise speed: Mach 0.85 (487 knots, 560 mph, 900 km/h) at 40,000 ft altitude
  • Range: 6,000 nmi (11,100 km (6,900 mi))
  • Service ceiling: 50,000 ft (15,200 m)
  • Wing loading: 67.3 lb/ft² (329 kg/m²)
  • Thrust/weight: 0.205

Armament

  • 2 internal bays for ordnance and payload with an official limit of 40,000 lb (18,000 kg); maximum estimated limit is 50,000 lb (23,000 kg).
    • 80× 500 lb class bombs (Mk-82, GBU-38) mounted on Bomb Rack Assembly (BRA)
    • 36× 750 lb CBU class bombs on BRA
    • 16× 2,000 lb class bombs (Mk-84, GBU-31) mounted on Rotary Launcher Assembly (RLA)
    • 16× B61 or B83 nuclear bombs on RLA (strategic mission)
    • Standoff weapon: AGM-154 Joint Standoff Weapon (JSOW) and AGM-158 Joint Air-to-Surface Standoff Missile (JASSM).

B-2 Aircraft Status

Air Vehicle No. Block No. USAF s/n Formal name Time in service, status
AV-1 Test/30 82-1066 Spirit of America 14 July 2000 – Active
AV-2 Test/30 82-1067 Spirit of Arizona 4 December 1997 – Active
AV-3 Test/30 82-1068 Spirit of New York 10 October 1997 – Active
AV-4 Test/30 82-1069 Spirit of Indiana 22 May 1999 – Active
AV-5 Test/20 82-1070 Spirit of Ohio 18 July 1997 – Active
AV-6 Test/30 82-1071 Spirit of Mississippi 23 May 1997 – Active
AV-7 10 88-0328 Spirit of Texas 21 August 1994 – Active
AV-8 10 88-0329 Spirit of Missouri 31 March 1994 – Active
AV-9 10 88-0330 Spirit of California 17 August 1994 – Active
AV-10 10 88-0331 Spirit of South Carolina 30 December 1994 – Active
AV-11 10 88-0332 Spirit of Washington 29 October 1994 – Severely damaged by fire in February 2010, repaired.
AV-12 10 89-0127 Spirit of Kansas 17 February 1995 – 23 February 2008, crashed
AV-13 10 89-0128 Spirit of Nebraska 28 June 1995 – Active
AV-14 10 89-0129 Spirit of Georgia 14 November 1995 – Active
AV-15 10 90-0040 Spirit of Alaska 24 January 1996 – Active
AV-16 10 90-0041 Spirit of Hawaii 10 January 1996 – Active
AV-17 20 92-0700 Spirit of Florida 3 July 1996 – Active
AV-18 20 93-1085 Spirit of Oklahoma 15 May 1996 – Active, Flight Test
AV-19 20 93-1086 Spirit of Kitty Hawk 30 August 1996 – Active
AV-20 30 93-1087 Spirit of Pennsylvania 5 August 1997 – Active
AV-21 30 93-1088 Spirit of Louisiana 10 November 1997 – Active
AV-22 through AV-165 Cancelled

 

Northrop N-1M

General Characteristics

  • Crew: one
  • Length: 17 ft 11 in (5.46 m)
  • Wingspan: 38 ft 8 in (11.79 m)
  • Height: 4 ft 11 in (1.50 m)
  • Wing area: 350 sq ft (33 m2) (approx)
  • Gross weight: 3,900 lb (1,769 kg)
  • Powerplant: 2 × Lycoming O-145 four-cylinder horizontally opposed air-cooled piston engines, 65 hp (48 kW) each (original engines)
  • Powerplant: 2 × Franklin 6AC-264F2 six-cylinder air-cooled horizontally opposed piston engines, 117 hp (87 kW) each (after reengining)

Performance

  • Maximum speed: 200 mph (322 km/h; 174 kn)
  • Range: 300 mi (261 nmi; 483 km)
  • Service ceiling: 4,000 ft (1,200 m)

Northrop N-9M

General Characteristics

  • Crew: 1
  • Capacity: 1 observer (N9MB)
  • Length: 17 ft 9 in (5.4 m)
  • Wingspan: 60 ft 0 in (18.3 m)
  • Height: 6 ft 7 in (2 m)
  • Wing area: 490 sq ft (45.5 m2)
  • Airfoil: NACA 65-019
  • Empty weight: 5,893 lb (2,673 kg)
  • Gross weight: 13,946 lb (6,326 kg)
  • Powerplant: 2 × Menasco C6S-4 “Buccaneer” 6-cyl. supercharged inverted air-cooled in-line piston engine, 275 hp (205 kW) each (N-9MB) 2x Franklin XO-540-7, 300 hp (224 kW) each

Performance

  • Maximum speed: 258 mph (415 km/h; 224 kn)
  • Range: 500 mi (434 nmi; 805 km)
  • Service ceiling: 21,500 ft (6,600 m)

Northrop XP-56 Black Bullet

General Characteristics

  • Crew: one, pilot
  • Length: 27 ft 6 in (8.38 m)
  • Wingspan: 42 ft 6 in (12.96 m)
  • Height: 11 ft 0 in (3.35 m)
  • Wing area: 306 ft² (28.44 m²)
  • Empty weight: 8,700 lb (3,955 kg)
  • Loaded weight: 11,350 lb (5,159 kg)
  • Max. takeoff weight: 12,145 lb (5,520 kg)
  • Powerplant: 1 × Pratt & Whitney R-2800-29 radial, 2,000 hp (1,492 kW)

Performance

  • Maximum speed: 465 mph at 25,000 ft (749 km/h)
  • Range: 660 miles (1,063 km)
  • Service ceiling: 33,000 ft (10,061 m)
  • Rate of climb: 3,125 ft/min at 15,000 ft (953 m/min)
  • Wing loading: 37 lb/ft² (181 kg/m²)
  • Power/mass: 0.18 hp/lb (0.96 kW/kg)

Armament

  • 2 × 20 mm (.79 in) cannons
  • 4 × .50 in (12.7 mm) machine guns

Northrop XP-79B

General Characteristics

  • Crew: 1
  • Length: 13.98 ft (4.26 m)
  • Wingspan: 37.99 ft (11.58 m)
  • Height: 7.58 ft (2.31 m)
  • Wing area: 278 sq ft (25.8 m2)
  • Aspect ratio: 5.19
  • Airfoil: NACA 66,2-018
  • Empty weight: 5,842 lb (2,650 kg)
  • Gross weight: 8,669 lb (3,932 kg)
  • Fuel capacity: 300 US gal (250 imp gal; 1,100 l)
  • Powerplant: 2 × Westinghouse 19B axial flow turbojet, 1,150 lbf (5.1 kN) thrust each

Performance

  • Maximum speed: 547 mph (880 km/h; 475 kn)
  • Cruise speed: 480 mph (772 km/h; 417 kn)
  • Range: 993 mi (863 nmi; 1,598 km)
  • Endurance: 2.45 hours
  • Service ceiling: 40,000 ft (12,000 m)
  • Rate of climb: 4,000 ft/min (20 m/s)
  • Wing loading: 31 lb/sq ft (150 kg/m2)
  • Thrust/weight: 0.27 lbf/lb (0.0026 kN/kg)

Armament

  • Guns: 4x 0.5 in (12.70 mm) machine-guns

Variants

  • NS-12 – Northrop company designation for the MX-324 programme.
  • NS-14 – Northrop designation for the XP-79 programme.
  • MX-324 – The “secret” designation for the powered version of the MX-334 glider. Only used for the no.2 glider, when powered by a single 200 lbf (890 N) Aerojet XCAL-200 liquid-fuelled rocket engine.
  • MX-334 – The designation used to describe the pure glider version ( including the no.2 aircraft before it was fitted with the rocket engine).
  • MX-365 – The USAAC project number for the XP-79 programme
  • XP-79 – The initial design for a rocket powered fighter, to have been powered by 2 x 2,000 lbf (8,900 N) Aerojet XCAL-2000 liquid-fuelled rocket engine.
  • XP-79B – Three aircraft were ordered but only one was completed, crashing on its first flight on 12 September 1945.