A rocket that generates a large thrust to take off and ascend, such as the first stage of a multi-stage rocket or a booster rocket to boost thrust. In a broader interpretation, all stages of a multi-stage rocket can be collectively called a booster that launches artificial satellites and spacecraft. Since a large thrust is the basic requirement of a booster, the rockets used for this purpose are currently limited to solid or liquid rockets, and there are no practical examples of non-chemical rockets. [Yasuhiro Kuroda] [Reference] |The two boosters SRB-A3 mounted on the bottom of the H-IIA rocket No. 21. Each has a total length of about 15m, a diameter of 2.5m, and a weight of about 76t. The surface is made of lightweight carbon fiber reinforced plastic (CFRP). ©JAXA/MHI "> Solid Rocket Booster Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
多段式ロケットの第一段、あるいは推力増強用補助ロケットのように、大推力を発して離陸上昇の役割を果たすロケットのこと。これを拡大解釈して、多段式ロケットの全段を一括して、人工衛星や宇宙船を打ち上げるブースターと称することもある。大推力がブースターの基本条件であるため、これに用いられるロケットは、現在のところ固体あるいは液体ロケットに限られ、非化学ロケットの実用例はない。 [黒田泰弘] [参照項目] |H-ⅡAロケット21号機の下部に装備された2基のブースターSRB-A3。それぞれ、全長約15m、直径2.5m、重量約76t。表面には強度が高く軽量な炭素繊維強化プラスチック(CFRP)を使用している©JAXA/MHI"> 固体ロケットブースター 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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