Tag Archives: HTV

Japanese experiment to remove space junk fails

A Japanese experiment designed to test technology for removing space junk and flown on that country’s most recent cargo ship to ISS has failed to deploy its tether as planned.

The system, designed by the Japanese space agency (JAXA) and a fishing net company, should have unfurled a 700-meter (2,300 ft) tether from a space station resupply vehicle that was returning to Earth. According to JAXA scientists, however, the system appears to have faltered.

This only adds another technical failure to a string of technical failures by Japanese spacecraft. And even though the cargo ship operated as planned, its launch was delayed when engineers discovered a leak during testing. Overall, it increasingly appears that Japan’s space program has the same kind of quality control problems as Russia.

Japan successfully launches its ISS cargo freighter

Japan today successfully launched its sixth HTV unmanned cargo freighter to ISS.

The launch had been delayed from a September launch due to “leaking pipes”, whatever that means. Its successful launch now however relieves some of the supply pressure on ISS, caused by the failed launch of Russia’s Progress on December 1 and the September 1 Falcon 9 launchpad explosion.

Japan to upgrade its ISS cargo freighter

The competition heats up: Japan has decided to upgrade its HTV cargo freighter to ISS by cutting its weight by 30% and reducing the cost to build it by half.

Without doubt the success of the U.S. in quickly building two private and relatively inexpensive freighters, Dragon and Cygnus, has influenced this decision. The managers in Japan have realized that the HTV is not efficient and could be streamlined, and they are trying now to do it.

Isn’t competition a wonderful thing?

Some questions about today’s hypersonic test flight

Here are some additional stories describing today’s test flight of the Hypersonic Test Vehicle.

I have several questions, and no answers: