N-II (rocket)

**N-II (rocket)**
Size
The N-II rocket
Function	Carrier rocket
Manufacturer	Mitsubishi Heavy Industries
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	2,000 kilograms (4,400 lb)
Payload to GTO	730 kilograms (1,610 lb)
Associated rockets
Family	Delta
Launch history
Status	Retired
Launch sites	LA-N, Tanegashima
Total launches	8
Successes	8
First flight	11 February 1981
Last flight	19 February 1987
Boosters - Castor 2
N^o boosters	9
Engines	1 TX-354-3
Thrust	258.9 kilonewtons (58,200 lbf)
Specific impulse	262 sec
Burn time	37 seconds
Fuel	Solid
First Stage - Thor-ELT
Engines	1 MB-3-3
Thrust	866.7 kilonewtons (194,800 lbf)
Specific impulse	290 sec
Burn time	270 seconds
Fuel	RP-1/LOX
Second Stage - Delta-F
Engines	1 AJ-10-118F
Thrust	41.3 kilonewtons (9,300 lbf)
Specific impulse	280 sec
Burn time	335 seconds
Fuel	HNO₃/UDMH
Third Stage (optional) - Star-37E
Engines	1 solid
Thrust	68 kilonewtons (15,000 lbf)
Specific impulse	284 sec
Burn time	42 seconds
Fuel	Solid
Third Stage (alternative, optional) - Burner-2
Engines	1 solid
Thrust	43.6 kilonewtons (9,800 lbf)
Specific impulse	285 sec
Burn time	42 seconds
Fuel	Solid

The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan. 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

Date/Time (GMT)	S/N	Payload	Orbit
11 February 1981, 08:30	7(F)	ETS-4 (Kiku-3)	MEO
10 August 1981, 20:03	8(F)	GMS-2 (Himawari-2)	GTO
4 February 1983, 08:37	10(F)	CS-2A (Sakura-2A)	GTO
5 August 1983, 20:29	11(F)	CS-2B (Sakura-2B)	GTO
23 January 1984, 07:58	12(F)	BS-2A (Yuri-2A)	GTO
2 August 1984, 20:30	13(F)	GMS-3 (Himawari-3)	GTO
12 February 1986, 07:55	14(F)	BS-2B (Yuri-2B)	GTO
19 February 1987, 01:23	16(F)	MOS-1 (Momo-1)	LEO

References

Wade, Mark. "Delta". Encyclopedia Astronautica. 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	Atmea Japanese Aero Engine Corporation Launch Services Alliance

Defunct	Nihon Aircraft Manufacturing Corporation

Products

Aircraft	ATD-X F-1 F-2 F-15J H-60 MH2000 Mitsubishi Regional Jet T-2

Armored vehicles	Type 10 Type 61 Type 74 Nana-yon Type 89 IFV Type 90 Kyū-maru

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

Other	Crystal Mover Green Mover Max MEISTeR Mitsubishi APWR Wakamaru

People

Kazuo Tsukuda

Other

Mitsubishi Dynaboars

Products currently in development shown in italics

Category

Orbital launch systems

Current	Angara 1.2 A5 Antares Ariane 5 Atlas V Delta II IV Dnepr-1 Epsilon Falcon 9 full thrust GSLV GSLV Mk III H-IIA H-IIB Kuaizhou Long March 2C 2D 2F 3A 3B 3C 4B 4C 6 11 Minotaur I IV V C Pegasus Proton-M PSLV Rokot Safir Shavit Strela Soyuz U FG 2 2-1v SPARK Unha Vega VLS-1 Zenit 2M 3SL 3SLB 3F

Planned	Angara A3 A5P A5V A7 Ariane 6 Athena Ic IIc III Ausroc IV Falcon Heavy Falcon 9-R FT-1 H3 Haas KZ-11 Long March 5 7 8 9 LauncherOne Mayak Naga-1 Naro-2 OREL RPS (420, 550) Simorgh SLS Southern Cross Soyuz-5 Tronador Tsyklon-4 ULV VLM Vulcan

Retired	Ariane 1 2 3 4 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 III Diamant Energia Europa Falcon 1 Falcon 9 v1.0 v1.1 Feng Bao 1 H-I H-II Juno I Juno II Kaituozhe-1 Kosmos 1 2I 3 3M Lambda 4S Long March 1 2A 2E 3 4A Mu 4S 3C 3H 3S 3SII V N1 N-I N-II Naro-1 Paektusan Pilot Proton UR-500 K R-7 Luna Molniya M L Polyot Soyuz L M U2 Soyuz/Vostok Sputnik Voskhod Vostok L K 2 2M R-29 Shtil' Volna Saturn I IB V INT-21 Scout SLV Space Shuttle Sparta Start-1 Thor Able Ablestar Agena Burner Delta DSV-2U Thorad-Agena Titan II GLV IIIA IIIB IIIC IIID IIIE 34D 23G CT-3 IV Tsyklon 2 3 Vanguard Zenit-2

Japanese orbital launch systems

JAXA

Active	Epsilon H-IIA H-IIB

Planned	H3

ISAS

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

NASDA

Retired	N-I‡ N-II‡ H-I‡ H-II

Other

Cancelled	GX‡

Retired	J-I

‡ Based around licence-produced US rockets

Thor and Delta rockets

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

Export

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

Components

Boosters

First stages

Common Booster Core

Upper Stages

Delta	Delta-A Delta-D Delta-E Delta-F Delta-K Delta-P DCSS

Other	Able Ablestar Agena Altair Burner FW-4D IABS PAM-D Star UM-129

Engines

Manufacturers

Rocket	Douglas McDonnell Douglas Boeing United Launch Alliance

Engines	Aerojet Alliant Rocketdyne Thiokol TRW

Launches

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N-II (rocket)

Launch history

See also

References