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The H3 is the world's first rocket to use an expander bleed cycle for the first stage engine. [ 5 ] As of July 2015 [update] , the minimum configuration is to carry a payload of up to 4,000 kg (8,800 lb) into Sun-synchronous orbit (SSO) for about 5 billion yen , and the maximum configuration is to carry more than 6,500 kg (14,300 lb) into ...
Kakehashi, Faulty brazing in second-stage engine cooling system caused engine burn through and cable damage resulting in shutdown midway through the upper stage's second burn, leaving spacecraft in elliptical LEO instead of GTO. Spacecraft thrusters raised orbit enough to complete some communications experiments.
The LE-9 is a liquid cryogenic rocket engine burning liquid hydrogen and liquid oxygen in an expander bleed cycle. Two or three will be used to power the core stage of the H3 launch vehicle. [1] [2] [5] The newly developed LE-9 engine is the most important factor in achieving cost reduction, improved safety and increased thrust.
The H3 left the Tanegashima Space Center in southern Japan at 9:22 a.m. local time on Saturday, the Japan Aerospace Exploration Agency (JAXA) said in a statement.
The rocket, known as the SS-520-5, is the world's smallest orbital launcher. [14] In 2023, JAXA began operating the H3, which will replace the H-IIA and H-IIIB; the H3 is a liquid-fueled launch vehicle developed from a completely new design like the H-II, rather than an improved development like the H-IIA and H-IIB, which were based on the H-II ...
JAXA's 63 m (297 ft) H3 rocket can carry a 6.5 ton payload into space, more than H-IIA's maximum of 6 tons, and fly more cheaply by adopting simpler structures and automotive-grade electronics.
Engine Origin Designer Vehicle Status Use Propellant Power cycle Specific impulse (s) [a] Thrust (N) [a] Chamber pressure (bar) Mass (kg) Thrust: weight ratio [e] Oxidiser: fuel ratio
The H3 lifted off at 9:22 a.m. local time (0022 GMT) and after it successfully released a small satellite, jubilant scientists at the Tanegashima Space Center in southern Japan clapped, yelled and ...