长征 8A | 星网低轨组 23

描述

The Long March 8A is an orbital launch vehicle developed by the China Academy of Launch Vehicle Technology based on the Long March 8. It has an increased capability of up to 7 tonnes to a 700 km altitude sun-synchronous orbit. It implements a larger 3.35 meters diameter liquid hydrogen/liquid oxygen 2nd stage, coupled with 2 upgraded version of the YF-75D engines used on the Long March 5 (known as the YF-75H) with increased thrust to 10 tonnes each through measures such as increased turbopump speeds. The Long March 8A can also use a larger 5.2 meters diameter payload fairing.

长征八号 A 是由中国运载火箭技术研究院基于长征八号研制的一款入轨运载火箭。它的运载能力提升至可将最多 7 吨送入 700 公里高度的太阳同步轨道。它采用更大的 3.35 米直径液氢/液氧第二级，配以 2 台长征五号所用 YF-75D 发动机的升级版（称为 YF-75H），通过提高涡轮泵转速等措施将每台推力提升至 10 吨。 长征八号 A 还可使用更大的 5.2 米直径载荷整流罩。