Tag: Eris

Gilmour’s Eris rocket now assembled and ready for launch from Bowen spaceport in Australia

10:43 am

Australian commercial spaceports
Click for original map.

The Austrialia rocket starup Gilmour has now assembled its first Eris rocket in anticipation of its first orbital test launch from that company’s Bowen spaceport on the east coast of Australia.

According to the report at the link, the launch could happen “in the coming weeks,” though no date has been set. Gilmour has already received its spaceport license from the Australian government, but has not yet gotten its launch license from the Australian Space Agency, despite putting in its application two years ago.

It appears there is now a race between this spaceport and the one on the south coast run by Southern Launch to launch first. Both are saying they will launch in mere weeks, but both are also awaiting launch approvals from the Australian Space Agency, which appears to be having difficulties making these first approvals. Either it is dragging its feet, or doesn’t know how to do this yet. Hopefully the bureaucrats will figure out how to say yes to freedom and let these spaceports and companies finally launch, before they run out of cash.

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Australian rocket startup gets government approval for its spaceport

9:55 am

Proposed Australian commercial spaceports

The Australian rocket startup Gilmour Space has now received a spaceport licence from the Australian government, allowing launches to occur from its Bowen spaceport on the northeast coast of Australia, as shown on the map to the right.

The company describes the approval from [Ed Husic Federal Minister for Industry and Science], who is also the minister in charge of the Australian Space Agency, as a vote of confidence in Gilmour’s technical capability, paving the way for the launch of Australia’s first sovereign-made rockets, ‘bridging Country to Sky’. Gilmour Space has also secured approval from the Department of Climate Change, Energy, the Environment and Water, enabling the operation of the spaceport at Abbot Point.

Not all is unicorns and rainbows however. First, it appears Gilmour began negotiating for this approval two years ago, so the government took a looong time to say yes. The other spaceport on the map has been awaiting for a launch license for about the same length of time, and has still not gotten it.

Gilmour also wants to do its first test launch of its Eris rocket in the next few months, but it is still awaiting its launch license from the Australian Space Agency. We are therefore about to find out whether Australia’s government can issue that permit in the next few months, or will instead emulate Great Britain, and bog things down with endless red tape.

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Australian rocket startup raises $36 million in private investment capital

9:43 am

Proposed Australian commercial spaceports

The Australian rocket startup Gilmour Space has now raised $36 million in private investment capital in its most recent fund-raising round. The company had previously raised $46 million.

The funding supports the small launch vehicle startup’s campaign to manufacture, test and begin launching rockets and satellites from the Bowen Orbital Spaceport in North Queensland.

Gilmour Space, founded in 2012, is developing a three-stage rocket called Eris. The first Eris test flight is expected “in the coming months, pending launch approvals from the Australian Space Agency,” according to the Gilmour Space news release. A second test flight is expected later this year and commercial launches are scheduled to begin in 2025. [emphasis mine]

The map to the right shows both the location of Gilmour’s Bowen launch site, but also that of Equatorial Launch Australia (ELA), which is building a spaceport open to all rocket companies.

Gilmour had originally announced plans for an April 2023 launch. Though it is not surprising for a new rocket company to experience delays in developing a new rocket, the highlighted phrase in the quote above, which has appeared in a previous story in September 2023 about the delays at Gilmore, strongly suggests Australia’s government might be a problem as well. Its legal framework is strongly influcenced by Great Britain’s, which has turned out to be a nightmare for both rocket companies and spaceports. That approvals have been pending now for many months is further evidence this is so.

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Australian rocket startup Gilmour preps for first test launch

9:23 am

Gilmour Space Technologies, a new Australian rocket startup, is now targeting April for the first test launch of its three-stage Eris rocket from a launchpad on the northeast coast of Australia.

Standing 25 m (82 ft) high, [Eris] has a first-stage diameter of 2 m (6.6 ft), and a second-stage diameter of 1.5 m (4.9 ft), and it’s designed to take a payload mass up to 305 kg (672 lb) up as high as 500 km (311 miles) for delivery to sun-synchronous or equatorial orbits. The Eris will be powered by five of Gilmour’s own Sirius rocket engines. This is a hybrid engine, meaning it uses a liquid oxidizer but a solid fuel. In a final bench test to destruction, it generated 115 kilonewtons (25,850 lbf) and burned for more than 90 seconds before exploding.

More information here.

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The size of Pluto pinned down

12:59 pm

Data from New Horizons has allowed scientists to more firmly determine, for the first time, Pluto’s precise size.

Mission scientists have found Pluto to be 1,473 miles (2,370 kilometers) in diameter, somewhat larger than many prior estimates. Images acquired with the Long Range Reconnaissance Imager (LORRI) were used to make this determination. This result confirms what was already suspected: Pluto is larger than all other known solar system objects beyond the orbit of Neptune. “The size of Pluto has been debated since its discovery in 1930. We are excited to finally lay this question to rest,” said mission scientist Bill McKinnon, Washington University, St. Louis.

Pluto’s newly estimated size means that its density is slightly lower than previously thought, and the fraction of ice in its interior is slightly higher. Also, the lowest layer of Pluto’s atmosphere, called the troposphere, is shallower than previously believed.

This means that Pluto is at this moment the largest Kuiper Belt object so far known, bigger than Eris, the Kuiper Belt planet discovered in 2005 that had been thought to be bigger than Pluto and whose existence was used by some to demote Pluto’s status as a planet.

I say, they are both planets, because they are both heavy enough for gravity to have forced them to become spherical.

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