View source for Engineering:N-II (rocket)

{{Infobox Rocket
|image=N-II.svg
|caption = The N-II rocket
|function       =  Carrier rocket
|manufacturer   =  [[Company:McDonnell Douglas|McDonnell Douglas]] (design)<br>[[Company:Mitsubishi Heavy Industries|Mitsubishi Heavy Industries]] (production)
|country-origin =  United States (design)<br>Japan (production)
|height       =  {{convert|35|m|ft}}
|diameter     =  {{convert|2.44|m|ft}}
|mass         =  {{convert|132690|kg|lb}}
|stages       =  2 or 3
|capacities =  
{{Infobox Rocket/Payload
|location =  [[Astronomy:Low Earth orbit|LEO]]
|kilos    =  {{convert|2000|kg|lb}}
}}
{{Infobox Rocket/Payload
|location =  [[Engineering:Geosynchronous transfer orbit|GTO]]
|kilos    =  {{convert|730|kg|lb}}
}}
|family      =  Delta
|status   =  Retired
|sites    =  LA-N, Tanegashima
|launches =  8
|success  =  8
|first    =  11 February 1981
|last     =  19 February 1987

|stagedata    = 
{{Infobox Rocket/Stage
|type       =  booster
|name       =  Castor 2
|number     =  9
|engines    =  1 TX-354-3
|thrust     =  {{convert|258.9|kN|lbf}}
|SI         =  262 sec
|burntime   =  37 seconds
|fuel       =  Solid
}}
{{Infobox Rocket/Stage
|type       =  stage
|stageno    =  First
|name       =  Thor-ELT
|engines    =  1 MB-3-3
|thrust     =  {{convert|866.7|kN|lbf}}
|SI         =  290 sec
|burntime   =  270 seconds
|fuel       =  [[Chemistry:RP-1|RP-1]]/[[Astronomy:LOX|LOX]]
}}
{{Infobox Rocket/Stage
|type       =  stage
|name       =  Delta-F
|stageno    =  Second
|engines    =  1 AJ-10-118F
|thrust     =  {{convert|41.3|kN|lbf}}
|SI         =  280 sec
|burntime   =  335 seconds
|fuel       =  [[Chemistry:Nitric acid|HNO<sub>3</sub>]]/UDMH
}}
{{Infobox Rocket/Stage
|type       =  stage
|name       =  Star-37E
|stageno    =  Third
|diff       =  optional
|engines    =  1 solid
|thrust     =  {{convert|68|kN|lbf}}
|SI         =  284 sec
|burntime   =  42 seconds
|fuel       =  Solid
}}
{{Infobox Rocket/Stage
|type       =  stage
|name       =  [[Engineering:Burner (rocket stage)|Burner-2]]
|stageno    =  Third
|diff       =  alternative, optional
|engines    =  1 solid
|thrust     =  {{convert|43.6|kN|lbf}}
|SI         =  285 sec
|burntime   =  42 seconds
|fuel       =  Solid
}}
}}

The '''N-II''' or '''N-2''' was a derivative of the American Delta rocket, produced under licence in Japan. It replaced the [[Engineering:N-I (rocket)|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 [[Engineering:Burner (rocket stage)|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 [[Engineering:H-I|H-I]], which featured Japanese-produced upper stages. All eight launches were successful.

==Launch history==
{| class="wikitable plainrowheaders"
|-
! scope="col" | Flight No.
! scope="col" | Date / time ([[Physics:Coordinated Universal Time|UTC]])
! scope="col" | Rocket, <br /> Configuration
! scope="col" | Launch site
! scope="col" | Payload
! scope="col" | Payload mass
! scope="col" | Orbit
! scope="col" | Customer
! scope="col" | Launch <br /> outcome
|-
! scope="row" rowspan = 2 style="text-align:center;|7(F)
| 11 February 1981<br>08:30
| 
|Tanegashima
| ETS-4 (Kiku-3)<ref>{{Cite web|url=https://global.jaxa.jp/projects/sat/ets4/|title=JAXA {{!}} Engineering Test Satellite IV "KIKU-3" (ETS-IV)|website=JAXA {{!}} Japan Aerospace Exploration Agency|language=en|access-date=2020-03-16}}</ref>
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|8(F)
| 10 August 1981<br>20:03
| 
|Tanegashima
| GMS-2 (Himawari-2)<ref name=":0">{{Cite web|url=https://global.jaxa.jp/projects/sat/gms/|title=JAXA {{!}} Geostationary Meteorological Satellite "Himawari" (GMS)|website=JAXA {{!}} Japan Aerospace Exploration Agency|language=en|access-date=2020-03-16}}</ref>
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|10(F)
| 4 February 1983<br>08:37
| 
|Tanegashima
| CS-2A (Sakura-2A)<ref name=":1">{{Cite web|url=https://global.jaxa.jp/projects/sat/cs/|title=JAXA {{!}} Communication Satellite "Sakura" (CS)|website=JAXA {{!}} Japan Aerospace Exploration Agency|language=en|access-date=2020-03-16}}</ref>
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|11(F)
| 5 August 1983<br>20:29
| 
|Tanegashima
| CS-2B (Sakura-2B)<ref name=":1" />
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|12(F)
| 23 January 1984<br>07:58
| 
|Tanegashima
| BS-2A (Yuri-2A)<ref name=":2">{{Cite web|url=https://global.jaxa.jp/projects/sat/bs/|title=JAXA {{!}} Broadcasting Satellite "Yuri" (BS)|website=JAXA {{!}} Japan Aerospace Exploration Agency|language=en|access-date=2020-03-16}}</ref>
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|13(F)
| 2 August 1984<br>20:30
| 
|Tanegashima
| GMS-3 (Himawari-3)<ref name=":0" />
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|14(F)
| 12 February 1986<br>07:55
| 
|Tanegashima
| BS-2B (Yuri-2B)<ref name=":2" />
| 
| [[Engineering:Geosynchronous transfer orbit|GTO]]
|
| {{Success}}
|-
| colspan="8" |
|-
! scope="row" rowspan = 2 style="text-align:center;|16(F)
| 19 February 1987<br>01:23
| 
|Tanegashima
| [[Engineering:MOS-1 (satellite)|MOS-1 (Momo-1)]]<ref>{{Cite web|url=https://global.jaxa.jp/projects/sat/mos1/|title=JAXA {{!}} Marine Observation Satellite-1 "Momo-1" (MOS-1)|website=JAXA {{!}} Japan Aerospace Exploration Agency|language=en|access-date=2020-03-16}}</ref>
| 
| [[Astronomy:Low Earth orbit|LEO]]
|
| {{Success}}
|-
| colspan="8" |
|-
|}

==See also==
*[[Engineering:Comparison of orbital launchers families|Comparison of orbital launchers families]]
*Delta rocket
*[[Engineering:H-I|H-I]]
*[[Engineering:H-II|H-II]]
*[[Engineering:H-IIA|H-IIA]]
*N-I rocket
*[[Engineering:PGM-17 Thor|PGM-17 Thor]]

==References==
{{Reflist}}
*{{cite web|url=http://www.astronautix.com/lvs/delta.htm|title=Delta|first=Mark|last=Wade|publisher=[[Encyclopedia Astronautica]]|access-date=2008-08-31|url-status=dead|archive-url=https://web.archive.org/web/20130817180906/http://astronautix.com/lvs/delta.htm|archive-date=2013-08-17}}
*{{cite web|url=http://planet4589.org/space/lvdb/launch/Thor|title=Thor|first=Jonathan|last=McDowell|work=Orbital and Suborbital Launch Database|publisher=[[Engineering:Jonathan's Space Report|Jonathan's Space Report]]|access-date=2008-08-31}}
*{{cite web|url=http://space.skyrocket.de/doc_lau_det/n-2.htm|title=N-2|first=Gunter|last=Krebs|publisher=Gunter's Space Page|access-date=2008-08-31}}

{{Expendable launch systems}}
{{Japanese launch systems}}

[[Category:Thor (rocket family)]]



{{Sourceattribution|N-II (rocket)}}