H-IIB (H2B) was an expendable space launch system jointly developed by the Japanese government's space agency JAXA and Mitsubishi Heavy Industries. It was used to launch the H-II Transfer Vehicle (HTV, or Kōnotori) cargo spacecraft for the International Space Station.

H-IIA was an improved version of H-II, the country's first liquid hydrogen fueled booster. H-IIB replaced the H-IIA single-engine first stage with a wider body, dual-engine stage. Two-and-one-half stage H-II could boost 4 metric tons into geosynchronous transfer orbit (GTO). H-IIA could lift nearly 6 tonnes . H-IIB could haul 8 tonnes.

Huntington Ingalls Industries, Inc. (HII) is the largest military shipbuilding company in the United States as well as a provider of professional services to partners in government and industry. HII, ranked No. 375 on the Fortune 500, was formed on 31 March 2011, as a divestiture from Northrop Grumman. [6] [7]

2018年5月18日 · The H-IIA and H-IIB are expendable launch rockets the Japan Aerospace Exploration Agency (JAXA) uses to launch satellites, as well as other spacecraft, into space. The rockets are operated by...

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The H-IIB launch vehicle is a two-stage rocket using liquid oxygen and liquid hydrogen as propellant and has four strap-on solid rocket boosters (SRB-A) powered by polibutadiene. The H-IIB has two liquid rocket engines (LE-7A) in the first-stage, instead of one for the H-IIA.

The H-IIA Launch Vehicle is a high-performance rocket consisted from a First stage, Second stage, fairing, one or two pairs of Solid Rocket Boosters (SRB-As). The propulsion system runs on liquid hydrogen and liquid oxygen. Two models are produced, the standard type H2A202 with two SRB-A's and the H2A204 type with four SRB-A's attached.

H-IIA, Japan's primary large-scale launch vehicle, is designed to meet diverse launch demands, at lower cost and with a high degree of reliability, by making the best use of the H-II launch …

2024年6月18日 · Defence giants HII (NYSE: HII) and Babcock have formed a ground-breaking new joint venture and entity – H&B Defence – to accelerate the development of critical sovereign capability for the once-in-a-generation AUKUS conventional …

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