Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen Xiao Zhan for the clue delivery! CTOnews.com, March 7, Japan's new generation of main carrier rocket H3 was launched for the first time this morning, but failed and destroyed because the two-stage booster failed to ignite, which once again lowered the low success rate in recent years.

According to Reuters, Japanese Chief Cabinet Secretary Hiroichi Matano said at a press conference on the afternoon of the same day that he deeply regretted the failure of the launch of Japan's new generation of main carrier rocket H3, and stressed that H3 rocket, as an important main rocket for Japan to enhance its international competitiveness, needs to continue its efforts to achieve a successful launch.

The H3 rocket is the first new model in Japan in 30 years. After its launch this morning, the Japan Aerospace Center issued a "destroy order" to the H3 due to the failure of secondary ignition and the continuous decrease of the speed of the rocket. This also means that the first flight ended in failure and the stars sank into the sea.

Keiko Nagaoka, Japan's minister of education, education, science and technology, said in a statement that the government had set up a working group to investigate the "very regrettable" failure.

"this will have a serious impact on Japan's future space policy, space business and technological competitiveness," said Yoshiro Watanabe, an expert on space policy at Osaka University. "

Public data show that the H3 carrier rocket has a maximum diameter of 5.2m, a solar synchronous orbit (SSO) carrying capacity of more than 4 tons, and a geosynchronous transfer orbit (GTO) carrying capacity of 6.5t, and can deliver 8.8t payloads to the geosynchronous transfer orbit (GTO). The payload is about 30 per cent larger than H2A, but the launch cost is about half of it.

The H3 rocket has a maximum configuration (H3-24L) of 63 meters high and a takeoff mass of 575 tons (excluding payload). It uses a solid booster and a liquid hydrogen and liquid oxygen engine for the first and second stages. The design goal is to increase the carrying capacity and reduce the launch cost relative to the Hmura, and it is the main rocket of Japan in the future.

The LE-9 open expansion cycle liquid hydrogen liquid oxygen engine used this time is a new type of high performance rocket engine developed by Japan. It has a single vacuum thrust of 1471 KN (about 150T) and a vacuum specific impulse of 422s, which is the leading level in the world.

A new generation of Japanese rocket H3-22s TF1 will try to launch the ALOS-3 (Advanced Land observation Satellite 3) optical remote sensing satellite again around 09:37 Beijing time on March 6, according to an official notice. CTOnews.com inquiry found that the satellite was developed by Mitsubishi Electric. Its design life is 7 years, the total weight is about 3 tons, the length × height × width (wingspan) is 3.6m × 5.0m × 16.5m, the working orbit is the sun synchronous orbit of height 669km, the place of descent is 10:30AM, the revisit period is 35 days, and the panchromatic resolution is 0.8m.

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