(X-Bow ) クロスボウ - Wikipedia
>カーボン - Wikipedia
(英: carbon fiber reinforced plastic, CFRP）
(ttps://www.youtube.com/watch?v=YW7bOzlzmDg )
Monaco - Wikipedia
(ttps://www.youtube.com/watch?v=yzW6bWTIhHU )
RC
(ttps://i.ytimg.com/vi/3nPkqQsHT30/maxresdefault.jpg )