N-I (rocket)

N-I
	The N-I rocket
Function	Carrier rocket
Manufacturer	Mitsubishi
Country of origin	United States (design); Japan (production)
Size
Height	34 metres (112 ft)
Diameter	2.44 metres (8.0 ft)
Mass	131,330 kilograms (289,530 lb)
Stages	2 or 3
Capacity
Payload to LEO
Mass	1,200 kilograms (2,600 lb)
Payload to GTO
Mass	360 kilograms (790 lb)
Associated rockets
Family	Delta
Launch history
Status	Retired
Launch sites	LA-N, Tanegashima
Total launches	7
Success(es)	6
Failure(s)	1
First flight	9 September 1975
Last flight	3 September 1982
Boosters – Castor 2
No. boosters	3
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-E
Powered by	1 AJ-10-118E
Maximum thrust	35.1 kilonewtons (7,900 lbf)
Specific impulse	278 sec
Burn time	400 seconds
Propellant	HNO3/UDMH
Third stage (optional) – Star-37N
Powered by	1 solid
Maximum thrust	45 kilonewtons (10,000 lbf)
Specific impulse	290 sec
Burn time	42 seconds
Propellant	Solid
	[edit on Wikidata]

The N-I or N-1 was a derivative of the American Delta rocket, produced under licence in Japan. It used a Thor-ELT first stage, a Delta-E second stage,^[1] and three Castor SRMs.^[2]^[3] Seven were launched between 1975 and 1982, before it was replaced by the N-II. Six of the seven launches were successful, however on the fifth flight, there was recontact between the satellite and the third stage, which caused the satellite to fail.

On 29 February 1976, the second N-I conducted the only orbital launch to occur on a leap day (as of year 2008).

Launch history

Date/Time (GMT)	S/N	Payload	Orbit	Remarks
9 September 1975, 05:30^[4]	1(F)	ETS-1 (JETS-1/Kiku-1)	LEO
29 February 1976, 03:30^[4]	2(F)	ISS-1 (JISS-1/Ume-1)	LEO
23 February 1977, 08:50^[4]	3(F)	ETS-2 (Kiku-2)	GTO	3^rd stage used
15 February 1978, 04:00^[4]	4(F)	ISS-2 (JISS-2/Ume-2)	LEO
6 February 1979, 08:46^[4]	5(F)	ECS-A (Ayame-1)	GTO	3^rd stage used Failure - Recontact between satellite and upper stage.
22 February 1980, 08:35^[4]	6(F)	ECS-B (Ayame-2)	GTO	3^rd stage used
3 September 1982, 05:00^[4]	9(F)	ETS-3 (Kiku-3)	LEO

This rocketry article is a stub. You can help Wikipedia by expanding it.

References

^ ^a ^b ^c ^d ^e ^f ^g ^h Wade, Mark. "Delta". Encyclopedia Astronautica. Retrieved 2008-09-03.
^ ^a ^b "JAXA Digital Archives". Japan Aerospace Exploration Agency. Retrieved 2009-10-01.
^ Krebs, Gunter. "N-1". Gunter's Space Page. Retrieved 2008-08-31.
^ ^a ^b ^c ^d ^e ^f ^g McDowell, Jonathan. "Thor". Orbital and Suborbital Launch Database. Jonathan's Space Report. Retrieved 2008-08-31.

[EA-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h Wade, Mark. "Delta". Encyclopedia Astronautica. Retrieved 2008-09-03.

[JAXA-archive-2] "JAXA Digital Archives". Japan Aerospace Exploration Agency. Retrieved 2009-10-01.

[GSP-3] Krebs, Gunter. "N-1". Gunter's Space Page. Retrieved 2008-08-31.

[JSR-4] ^ ^a ^b ^c ^d ^e ^f ^g McDowell, Jonathan. "Thor". Orbital and Suborbital Launch Database. Jonathan's Space Report. Retrieved 2008-08-31.

[1]

[2]

[3]

[4]

v t e Orbital launch systems
List of orbital launch systems Comparison of orbital launch systems
Current	Angara 1.2 A5 Ariane 6 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 Zhuque 2
In development	Antares 330 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 Nova 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 3SL 3SLB 3F 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)

Launch history

See also

References