N-II (rocket)

Size
The N-II rocket
Function	Carrier rocket
Manufacturer	McDonnell Douglas (design) Mitsubishi Heavy Industries (production)
Country of origin	United States (design) Japan (production)
Height	35 metres (115 ft)
Diameter	2.44 metres (8.0 ft)
Mass	132,690 kilograms (292,530 lb)
Stages	2 or 3
Capacity
Payload to LEO
Mass	2,000 kilograms (4,400 lb)
Payload to GTO
Mass	730 kilograms (1,610 lb)

Associated rockets
Family	Delta
Launch history
Status	Retired
Launch sites	LA-N, Tanegashima
Total launches	8
Success(es)	8
First flight	11 February 1981
Last flight	19 February 1987

Boosters – Castor 2
No. boosters	9
Powered by	1 TX-354-3
Maximum thrust	258.9 kilonewtons (58,200 lbf)
Specific impulse	262 sec
Burn time	37 seconds
Propellant	Solid
First stage – Thor-ELT
Powered by	1 MB-3-3
Maximum thrust	866.7 kilonewtons (194,800 lbf)
Specific impulse	290 sec
Burn time	270 seconds
Propellant	RP-1/LOX
Second stage – Delta-F
Powered by	1 AJ-10-118F
Maximum thrust	41.3 kilonewtons (9,300 lbf)
Specific impulse	280 sec
Burn time	335 seconds
Propellant	HNO₃/UDMH
Third stage (optional) – Star-37E
Powered by	1 solid
Maximum thrust	68 kilonewtons (15,000 lbf)
Specific impulse	284 sec
Burn time	42 seconds
Propellant	Solid
Third stage (alternative, optional) – Burner-2
Powered by	1 solid
Maximum thrust	43.6 kilonewtons (9,800 lbf)
Specific impulse	285 sec
Burn time	42 seconds
Propellant	Solid

[edit on Wikidata]

The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan. It replaced the N-I-rocket in Japanese use. It used a Thor-ELT first stage, a Delta-F second stage, nine Castor SRMs, and on most flights either a Star-37E or Burner-2 upper stage, identical to the US Delta 0100 series configurations. Eight were launched between 1981 and 1987, before it was replaced by the H-I, which featured Japanese-produced upper stages. All eight launches were successful.

Launch history

Flight No.	Date / time (UTC)	Launch site	Payload	Orbit	Launch outcome
7(F)	11 February 1981 08:30	Tanegashima	ETS-4 (Kiku-3)^[1]	GTO	Success
7(F)
8(F)	10 August 1981 20:03	Tanegashima	GMS-2 (Himawari-2)^[2]	GTO	Success
8(F)
10(F)	4 February 1983 08:37	Tanegashima	CS-2A (Sakura-2A)^[3]	GTO	Success
10(F)
11(F)	5 August 1983 20:29	Tanegashima	CS-2B (Sakura-2B)^[3]	GTO	Success
11(F)
12(F)	23 January 1984 07:58	Tanegashima	BS-2A (Yuri-2A)^[4]	GTO	Success
12(F)
13(F)	2 August 1984 20:30	Tanegashima	GMS-3 (Himawari-3)^[2]	GTO	Success
13(F)
14(F)	12 February 1986 07:55	Tanegashima	BS-2B (Yuri-2B)^[4]	GTO	Success
14(F)
16(F)	19 February 1987 01:23	Tanegashima	MOS-1 (Momo-1)^[5]	LEO	Success
16(F)

References

^ "JAXA | Engineering Test Satellite IV "KIKU-3" (ETS-IV)". JAXA | Japan Aerospace Exploration Agency. Retrieved 2020-03-16.
^ ^a ^b "JAXA | Geostationary Meteorological Satellite "Himawari" (GMS)". JAXA | Japan Aerospace Exploration Agency. Retrieved 2020-03-16.
^ ^a ^b "JAXA | Communication Satellite "Sakura" (CS)". JAXA | Japan Aerospace Exploration Agency. Retrieved 2020-03-16.
^ ^a ^b "JAXA | Broadcasting Satellite "Yuri" (BS)". JAXA | Japan Aerospace Exploration Agency. Retrieved 2020-03-16.
^ "JAXA | Marine Observation Satellite-1 "Momo-1" (MOS-1)". JAXA | Japan Aerospace Exploration Agency. Retrieved 2020-03-16.

Wade, Mark. "Delta". Encyclopedia Astronautica. Archived from the original on 2013-08-17. Retrieved 2008-08-31.
McDowell, Jonathan. "Thor". Orbital and Suborbital Launch Database. Jonathan's Space Report. Retrieved 2008-08-31.
Krebs, Gunter. "N-2". Gunter's Space Page. Retrieved 2008-08-31.

Mitsubishi Heavy Industries

Mitsubishi

Subsidiaries

Joint ventures

Current	Japanese Aero Engine Corporation Launch Services Alliance Mitsubishi Caterpillar Forklifts
Defunct	Atmea Nihon Aircraft Manufacturing Corporation

Products

Aircraft	F-1 F-2 F-15J H-60 MH2000 Mitsubishi SpaceJet T-2 X-2
Armored vehicles	Type 61 Type 74 Nana-yon Type 89 IFV Type 90 Kyū-maru Type 10
Launch vehicles	N-I N-II H-I H-II H-IIA H-IIB H3
Missiles	Type 88 Type 89 Type 90 Type 91
Ships	Akizuki class Atago class Hatakaze class Kongō class Takanami class
Submarines	Harushio class Oyashio class Sōryū class Taigei class
Other	Crystal Mover and Urbanismo Green Mover Max MEISTeR Mitsubishi APWR Wakamaru

People

Kazuo Tsukuda

Other

Mitsubishi Sagamihara DynaBoars

Products currently in development shown in italics

Category

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Atlas V Ceres 1 1S Chollima-1 Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Gravity-1 GSLV H-IIA H3 Hyperbola-1 Jielong 1 3 KAIROS^† Kaituozhe 2 Kinetica-1 Kuaizhou 1 1A 11 Long March 2C 2D 2F 3A 3B/E 3C 4B 4C 5 5B 6 6A 7 7A 8 11 11H LVM3 Minotaur I IV V C Nuri OS-M1^† Pegasus XL Proton-M PSLV Qaem 100 Qased RS1^† Shavit 2 Simorgh SLS Block 1 Soyuz-2 2.1a / STA 2.1b / STB 2-1v SSLV Starship Tianlong-2 Unha Vega original C Vulcan Centaur Zenit 3SL 3SLB 3F Zhuque 2
In development	Antares 330 Ariane 6 Bloostar Cyclone-4M Epsilon S Eris Gravity-2 Hyperbola-2 Irtysh Kuaizhou 21 31 Long March 9 10 12 Miura 5 MLV Neutron New Glenn New Line 1 NGLV OS-M 2 4 Orbex Prime Pallas-1 Red Dwarf SLS Block 1B Block 2 Soyuz-7 Terran R Tianlong-3 VLM Vega E Zero Zhuque 3 Zuljanah
Retired	Antares 110 120 130^† 230 230+ Ariane 1 2 3 4 5 ASLV Athena I II Atlas B D E/F G H I II III LV-3B SLV-3 Able^† Agena Centaur Black Arrow Conestoga^† Delta A B C D E G J L M N 0100 1000 2000 3000 4000 5000 II III IV IV Heavy Diamant Dnepr Energia Epsilon Europa I^† II^† Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" Feng Bao 1 GSLV Mk I H-I H-II H-IIB Juno I Juno II Kaituozhe-1 Kosmos original 1 2/2I 3 3M Lambda 4S LauncherOne Long March 1 1D^† 2A 2E 3 3B 4A Mu 4S 3C 3H 3S 3SII V N1^† N-I N-II Naro-1 Paektusan^† Pilot-2^† R-7 Luna Molniya M L Polyot Soyuz original FG L M U U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna^† Rocket 3 Safir 1 1A 1B Saturn I IB V Scout X-1 Blue Scout II^† X-2^† X-2M X-3 X-3M X-4 X-2B^† B A B-1 D-1 A-1 E-1 F-1 G-1 Shavit original 1 SLV Space Shuttle SPARK^† Sparta SS-520 Start-1 Terran 1^† Thor Able Ablestar 1 2 Agena A B D Burner 1 2 Delta DSV-2U Thorad-Agena SLV-2G SLV-2H Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon R-36-O original 2 3 Universal Rocket UR-500 Proton Proton-K Rokot Strela Vanguard VLS-1^† Zenit 2 2M 2FG Zhuque 1^†
Classes	Sounding rocket Small-lift launch vehicle Medium-lift launch vehicle Heavy-lift launch vehicle Super heavy-lift launch vehicle
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future Symbol ^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)

Japanese orbital launch systems

Space agencies

JAXA

Active	H-IIA H3
Planned	Epsilon S
Retired	Epsilon H-IIB SS-520 (Three stage variant)

ISAS

Retired	Lambda (4S) Mu (4S 3C 3H 3S 3SII V)

NASDA

Retired	N-I‡ N-II‡ H-I‡ H-II

NASDA/ISAS

Retired	J-I¤

Private sector

IST

Planned	ZERO

Space One

Active	KAIROS

Galaxy Express

Abandoned	GX‡

‡ Based around licence-produced US rockets; ¤ Never flew an orbital flight (only 1 suborbital flight performed)

Thor and Delta rockets

PGM-17 Thor
Thor family
Delta family

Rockets

Thor

Delta

Alphabetical	Delta A Delta B Delta C Delta D Delta E Delta F Delta G Delta J Delta L Delta M Delta N
Numerical	Delta 0100 Delta 1000 Delta 2000 Delta 3000 Delta 4000 Delta 5000 Delta 6000 Delta 7000 Delta 8000 Delta 9000
Modern	Delta II Delta III Delta IV Delta IV Heavy

Export

N-I
N-II
H-I

Launch sites

Canaveral	(S)LC-17 LC-18B SLC-37B
Johnston	LE-1 LE-2
Tanegashima	Osaki
Vandenberg	SLC-1 SLC-2 SLC-3 SLC-6 SLC-10
Bases	Bardney Breighton Caistor Carnaby Catfoss Coleby Grange Driffield Feltwell Folkingham Full Sutton Harrington Hemswell Ludford Magna Melton Mowbray Mepal North Luffenham North Pickenham Polebrook Shepherds Grove Tuddenham