| 翻訳と辞書 |
Unha
The Unha or Eunha ((朝鮮語:은하, 銀河), "Galaxy") is a North Korean expendable carrier rocket, which partially utilizes the same delivery system as the Taepodong-2 long-range ballistic missile.
== History ==
North Korea's first orbital space launch attempt occurred on August 31, 1998 and was unsuccessful. This launch attempt was performed by a Paektusan rocket. The particular vehicle used in the first attempt was named the ''Taepo Dong 1''. It used a solid motor third stage, a Scud-missile-based second stage, and a Rodong-1 based first stage. Rodong-1 was a North Korean-developed stage thought to be a scale-up of the old Soviet Scud missile. TaepoDong 1 stood 22.5 metres tall, was 1.8 metres in diameter, and weighed about 21 tonnes.
The next launch vehicle, the ''Unha-2'', is believed to be a three-stage rocket derived from North Korea's Taepodong-2 ballistic missile - a missile that first flew, unsuccessfully, in 2006. The rocket failed after 40 seconds. TaepoDong 2's new first stage is thought to be powered by four engines, one of which powered the country's earlier Taepo Dong 1 first stage. The four engines may produce of liftoff thrust, sufficient to rapidly lift the 78 tonne carrier rocket.〔http://www.spacelaunchreport.com/unha.html〕 According to Japanese reports, the second stage splashed down in the Pacific Ocean approximately 3,200 kilometers from the launch site.
The January 3, 2013 internet edition of the Rodong Sinmun, the Workers' Party official newspaper, quoted a scientist saying there would be six more satellite launch vehicles. Reports say the Unha 4 and 5 are intended to launch earth observation satellites, Unha 6, 7 and 8 would presumably place into orbit communications satellites and Unha 9 would carry a lunar orbiter.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Unha」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|