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Encyclopedia Astronautica
N1F-L3M


n1msr2.jpg
N1M - Sr
Russian heavy-lift orbital launch vehicle. The N1M was found to be too ambitious. The N1F of 1968 was instead pencilled in to be the first Soviet launch vehicle to use liquid oxygen/liquid hydrogen high energy cyrogenic propellants. The N1F would have only used the Block S and Block R fourth and fifth stages in place of the N1's Block G and Block D.

Stage Data - N1F-L3M

  • Stage 1. 1 x N1F Block A. Gross Mass: 2,070,000 kg (4,560,000 lb). Empty Mass: 126,230 kg (278,280 lb). Thrust (vac): 49,675.500 kN (11,167,497 lbf). Isp: 331 sec. Burn time: 125 sec. Isp(sl): 297 sec. Diameter: 10.00 m (32.00 ft). Span: 15.60 m (51.10 ft). Length: 30.00 m (98.00 ft). Propellants: Lox/Kerosene. No Engines: 30. Engine: NK-33. Status: In Production. Comments: Includes 14,000 kg for Stage 1-2 interstage.
  • Stage 2. 1 x N1F Block B. Gross Mass: 620,000 kg (1,360,000 lb). Empty Mass: 55,700 kg (122,700 lb). Thrust (vac): 14,040.004 kN (3,156,318 lbf). Isp: 346 sec. Burn time: 120 sec. Diameter: 6.80 m (22.30 ft). Span: 9.80 m (32.10 ft). Length: 20.00 m (65.00 ft). Propellants: Lox/Kerosene. No Engines: 8. Engine: NK-43. Status: In Production. Comments: Includes 3,500 kg for Stage 2-3 interstage.
  • Stage 3. 1 x N1F Block V. Gross Mass: 210,000 kg (460,000 lb). Empty Mass: 13,700 kg (30,200 lb). Thrust (vac): 1,608.000 kN (361,492 lbf). Isp: 353 sec. Burn time: 370 sec. Diameter: 4.80 m (15.70 ft). Span: 6.80 m (22.30 ft). Length: 12.00 m (39.00 ft). Propellants: Lox/Kerosene. No Engines: 4. Engine: NK-39. Status: In Production.
  • Stage 4. 1 x N1 Block S. Gross Mass: 58,000 kg (127,000 lb). Empty Mass: 8,000 kg (17,600 lb). Thrust (vac): 392.000 kN (88,125 lbf). Isp: 440 sec. Burn time: 540 sec. Diameter: 6.70 m (21.90 ft). Span: 6.70 m (21.90 ft). Length: 16.00 m (52.00 ft). Propellants: Lox/LH2. No Engines: 1. Engine: RD-57. Status: Study 1967. Comments: Designed 1965-1971 as replacement for N-1 Blok G. Cancelled in 1971 in favor of development of single stage, Block Sr.
  • Stage 5. 1 x N1 Block R. Gross Mass: 23,000 kg (50,000 lb). Empty Mass: 4,300 kg (9,400 lb). Thrust (vac): 73.500 kN (16,523 lbf). Isp: 440 sec. Burn time: 1,080 sec. Diameter: 4.10 m (13.40 ft). Span: 4.10 m (13.40 ft). Length: 8.70 m (28.50 ft). Propellants: Lox/LH2. No Engines: 1. Engine: RD-56. Status: Development 1976. Comments: Designed 1965-1971 as replacement for N-1 Blok D. Cancelled 1971 in favor of Blok Sr; revived and developed in 1974-1976. First static test Oct 12 1976. Two stages tested 1976-1977. Strangely never replaced Blok D on Proton.

Status: Development ended 1971.
Gross mass: 2,773,000 kg (6,113,000 lb).
Height: 104.00 m (341.00 ft).
Diameter: 10.00 m (32.00 ft).
Thrust: 43,295.50 kN (9,733,216 lbf).

More... - Chronology...
Associated Countries
Associated Engines
  • NK-33 Kuznetsov Lox/Kerosene rocket engine. 1638 kN. N-1F, Kistler stage 1, Taurus II stage 1. Isp=331s. Modified version of original engine with multiple ignition capability. Never flown and mothballed in 1975 after the cancellation of the N1. Resurrected for Kistler, then for Taurus. More...
  • NK-39 Kuznetsov Lox/Kerosene rocket engine. 402 kN. N-1F stage 3. Development ended 1971. Isp=352s. Modified version of original engine with multiple ignition capability. Never flown and mothballed after the cancellation of the N1. More...
  • NK-43 Kuznetsov Lox/Kerosene rocket engine. 1755 kN. N-1F, Kistler stage 2. Design 1975. Isp=346s. Modified version of original engine with multiple ignition capability. Never flown and mothballed after the cancellation of the N1. Resurrected for Kistler. More...
  • RD-57 Lyulka lox/lh2 rocket engine. 392 kN. N1 Block S (N-1M). Study 1965. One to have been used in N1 Block S. In fixed chamber version, 3 to 6 to have been used in N1 Block V-III. Engine system includes roll control thruster with 1.29 kN thrust. Isp=456s. More...
  • RD-56 Isayev lox/lh2 rocket engine. 69.6 kN. N1 block R. Development ended 1971. Oxygen-hydrogen engine for cryogenic upper stage. Developed but never flown. Design sold to India in 1990's for GSLV. Isp=462s. More...
See also
  • N1 The N1 launch vehicle, developed by Russia in the 1960's, was to be the Soviet Union's counterpart to the Saturn V. The largest of a family of launch vehicles that were to replace the ICBM-derived launchers then in use, the N series was to launch Soviet cosmonauts to the moon, Mars, and huge space stations into orbit. In comparison to Saturn, the project was started late, starved of funds and priority, and dogged by political and technical struggles between the chief designers Korolev, Glushko, and Chelomei. The end result was four launch failures and cancellation of the project five years after Apollo landed on the moon. Not only did a Soviet cosmonaut never land on the moon, but the Soviet Union even denied that the huge project ever existed. More...
Associated Manufacturers and Agencies
  • Korolev Russian manufacturer of rockets, spacecraft, and rocket engines. Korolev Design Bureau, Kaliningrad, Russia. More...
Associated Stages
  • N1 Block R Lox/LH2 propellant rocket stage. Loaded/empty mass 23,000/4,300 kg. Thrust 73.50 kN. Vacuum specific impulse 440 seconds. Designed 1965-1971 as replacement for N-1 Blok D. Cancelled 1971 in favor of Blok Sr; revived and developed in 1974-1976. First static test Oct 12 1976. Two stages tested 1976-1977. Strangely never replaced Blok D on Proton. More...
  • N1 Block S Lox/LH2 propellant rocket stage. Loaded/empty mass 58,000/8,000 kg. Thrust 392.00 kN. Vacuum specific impulse 440 seconds. Designed 1965-1971 as replacement for N-1 Blok G. Cancelled in 1971 in favor of development of single stage, Block Sr. More...
  • N1F Block A Lox/Kerosene propellant rocket stage. Loaded/empty mass 2,070,000/126,230 kg. Thrust 49,675.50 kN. Vacuum specific impulse 331 seconds. Includes 14,000 kg for Stage 1-2 interstage. More...
  • N1F Block B Lox/Kerosene propellant rocket stage. Loaded/empty mass 620,000/55,700 kg. Thrust 14,040.00 kN. Vacuum specific impulse 346 seconds. Includes 3,500 kg for Stage 2-3 interstage. More...
  • N1F Block V Lox/Kerosene propellant rocket stage. Loaded/empty mass 210,000/13,700 kg. Thrust 1,608.00 kN. Vacuum specific impulse 353 seconds. More...

N1F-L3M Chronology
1973 January 1 - . LV Family: N1. Launch Vehicle: N1F-L3M.
  • N1-L3M - . Nation: USSR. Program: Lunar L3. Spacecraft: L3M-1972. Summary: The first lunar expedition project, the N1-L3M, was studied in 1973..
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