Britannica AI Icon

Quick Summary

The H-IIA is a Japanese launch vehicle developed to reduce costs compared to its predecessor, the H-II. It utilizes a combination of foreign and Japanese components, along with simplified manufacturing, to achieve this goal. The H-IIA can be configured with solid rocket motors and liquid-fueled strap-on boosters. Its first launch occurred in August 2001. The H-IIB, a variant of the H-IIA, was specifically designed to launch the H-II Transfer Vehicle (HTV), an uncrewed spacecraft that delivers supplies to the International Space Station.12

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.