SpaceX successfully tests its Dragon capsule abort rocket thrusters

The competition heats up: SpaceX has successfully tested its abort rocket thrusters that will be used to speed a Dragon capsule away from any rocket during a failed launch.

Named SuperDracos, the engines are arranged in four pairs – SpaceX calls them ‘jetpacks’ – integrated around the outside of the Crew Dragon spacecraft. Firing all at once, the eight engines produce 120,000 pounds of thrust – enough power to accelerate a Crew Dragon from zero to 100 mph in 1.2 seconds. In the unlikely event of an emergency, that power means the ability to lift the crew a safe distance off the launch pad or far away from a booster failing on the way to orbit. That capability was demonstrated earlier this year in a pad abort test that confirmed the SuperDraco design in a flight-like condition.

A normal launch of the Crew Dragon atop a Falcon 9 rocket would not offer the SuperDracos anything to do during the mission since their only responsibility is to fire in an emergency to rescue the crew onboard. Eventually, SpaceX plans to use the SuperDracos in the place of a parachute during landing.

1 comment

Congress revises law governing commercial space

The competition heats up? Congress this week passed a revision to the Commercial Space Act that they claimed will help encourage the growth of the new industry.

According to the Senate press release, the bill does the following:

  • Extend the liability waiver for private space launches until 2023
  • Extend ISS operations until 2024
  • Establishes a legal right for U.S. companies to mine resources in space
  • Demands a new more streamlined framework for the government’s regulation of the industry

The last item is probably mostly blather, since a close look at the bill itself [pdf] reveals that most of these demands are merely requirements that the executive branch write a report. The odious rules that will allow the federal government to regulate and restrict the industry all remain. And even though the bill makes a big deal about establishing these regulations in concert with the industry itself, that only means that today’s players can use the government to make it difficult for new players to get started.

The claim that the bill also establishes “a legal right to resources a U.S. citizen may recover in space consistent with current law and international obligations of the United States,” as noted in the Senate press release, is a very big overstatement. The bill’s wording does nothing to get the U.S. out of the UN’s Outer Space Treaty, which forbids any person or nation from claiming ownership of territory in space. All the bill does is express the desire that American citizens should have the right to own what they mine, while at the same time stating that these resources will be “obtained in accordance with applicable law, including the international obligations of the United States.’’ In other words, the Outer Space Treaty still applies, and you can’t own it.

For what it’s worth, the bill also renames the FAA’s space regulatory agency from “The Office of Space Commercialization” to “The Office of Space Commerce.”

All in all, the bill’s most important overall accomplishment is that it strongly emphasizes and encourages the development of a private space industry, and tries to focus the government’s regulatory efforts in that direction. This ain’t perfect, but it could be considered a step in the right direction.

One more thing to note: Senator Ted Cruz (R-Texas) appears to have been a major player in getting this bill written and passed.

0 comments

Another new American rocket engine tested successfully

The competition heats up: Sierra Nevada has successfully tested a new rocket engine, dubbed Vortex, specifically designed to fulfill a wide range of uses. From the press release:

These tests demonstrate the ability to transition use of different propellant combinations in the same core rocket engine design with slight changes to accommodate a specific combination of fuel and oxidizer, including propane and kerosene fuels with nitrous oxide (laughing gas) and liquid oxygen oxidizers. This latest development offers customers a suite of engines scalable to higher thrust levels and customer-selected fuel combinations from a single core rocket engine design. ORBITEC’s patented vortex rocket engines utilize a unique swirling propellant flow to naturally cool the engine walls, allowing for the development and manufacture of simpler, low-cost, light-weight and more robust rocket engine systems.

What strikes me about this is that, until SpaceX built its Merlin engine in the mid-2000s, it had been decades since the American aerospace industry had developed a new rocket engine. After the development of the shuttle’s main engines in the late 1970s nothing new was created for the rest of the 20th century. Since Merlin, however, we have seen a string of new engines from several different companies, suggesting that the new renaissance I wrote about back in 2005 is on-going and accelerating.

4 comments

Competition for ISS cargo contract reduced to three

The competition heats up: With NASA once again delaying its decision on the next contract round for supplying cargo to ISS — this time to January — Boeing also revealed that NASA had eliminated the company from the competition, leaving only SpaceX, Orbital ATK, and Sierra Nevada in the running for the two contracts.

Earlier I had said that if the decision had been up to me, which of course it isn’t, I would pick Orbital and Sierra Nevada, since SpaceX and Boeing already have contracts to ferry crews to ISS. If you add Orbital’s Cygnus and Sierra Nevada’s reusable Dream Chaser, you then have four different spacecraft designs capable of bring payloads into orbit, a robust amount of redundancy that can’t be beat. When I wrote that I also noted that I thought it wouldn’t happen because Boeing’s clout with Congress and NASA would make it a winner.

With Boeing now out of the picture, it seems to me that the reason NASA has delayed its final decision again is that it wants to see what happens with the return to flight launches of Dragon and Cygnus in the next three months. A SpaceX Dragon success will cement that company’s position in the manned contract area, while an Orbital ATK Cygnus succuss will make picking them for a second contract seem less risky. In addition, maybe NASA wants Sierra Nevada to fly another glide test of its Dream Chaser test vehicle, and is now giving it the time to do so.

7 comments

Tomato harvesting

An evening pause: Another video suggested by Phill Oltmann illustrating how engineering has revolutionized the agricultural field. In this case its tomatoes, which I think illustrates quite well why mass produced tomatoes are simply not as good as vine grown tomatoes from your garden. Assuming the tomatoes in this video are not intended for canning, they have to be tough to withstand the harvesting process so that they remain whole for the fruit stand.

2 comments

Update to commercial space law stalled in Senate

Surprise, surprise! It appears that several Senate Democrats and the trial lawyer organizations that back them are objecting to passage of an update to the 2004 Commercial Space Act that would extend the period that companies would be exempt from liability while they experiment with new spacecraft.

Some Democratic members of the House Science Committee opposed those provisions when the committee marked up a version of the bill in May. “This really is quite an indefensible provision,” said Rep. Donna Edwards (D-Md.) during discussion then regarding the federal jurisdiction clause of the House bill, arguing that the bill is “basically providing the launch industry with complete immunity from any civil action.”

The American Association for Justice, a legal organization formerly known as the Association of Trial Lawyers of America, also spoke out against those sections of the bill in May. “Industries that lobby for immunity from accountability might as well hang up a sign saying they don’t trust themselves to be safe,” Linda Lipsen, chief executive of the association, said in a May 13 statement.

I really hate saying “I told you so!” but more than a decade ago, when the 2004 Commercial Space Act was passed, I opposed it because it gave the federal government far too much regulatory control over this very new and very experimental industry. Many industry people attacked me for doing so, saying that they needed this regulatory framework to raise capital.

Now the industry finds those regulations burdensome and is trying to get them eased, or waived temporarily. Not unexpectedly, there are vested interests in and out of Congress who don’t want those regulations eased. So, instead of focusing their energies on developing new technologies, the industry must instead spend money on lobbying and political dealmaking, which might get them some of what they want but will certainly also come with some political price that will be even more burdensome.

1 comment

China unveils model of planned 2020 Martian probe

The competition heats up: China today unveiled a one-third scale model of its planned Martian lander/rover, scheduled for launch in 2020.

If they succeed in putting a lander and rover on Mars, China will have clearly demonstrated the capability to do almost anything in space that the United States can do. The competition in the coming decades should thus be most interesting.

Posted from Tucson International Airport.

0 comments

Richard Branson makes another prediction!

Promises, promises! Richard Branson today predicted that Virgin Galactic’s second SpaceShipTwo suborbital spaceplane will begin flight tests in February 2016.

Forgive me if I am extremely skeptical. Branson has been making these kinds of promises now for more than a decade, none of which has come even close to coming true. I note this new prediction here merely to point out how bad his past predictions have been. Nowadays, I only believe Virgin Galactic is going to fly after they have do so.

Posted from Tucson International Airport, on the way to Mexico City for a week of sightseeing.

0 comments

British spaceplane concept gets infusion of cash

The competition heats up: Reaction Engines, the British company developing a hybrid air-breathing rocket engine, today received obtained a significant funding boost from a new private partner as well as the British government.

The government has committed $60 million, while BAE has purchased 20% of the company with a commitment of an additional $20 million.

The craft Reaction Engines intends to eventually produce, known as Skylon, depends on the ability to cool an incoming airstream from 1,000 degrees C to minus 150 C almost instantly, at close to 1/100th of a second. That process doubles the technical limits of a jet engine, and would enable the craft to reach extremely fast speeds in Earth’s atmosphere, up to give times the speed of sound, before switching to a rocket engine to reach orbit.

Don’t start buying tickets however. They don’t expect to begin manned test flights for at least a decade

2 comments

Eutelsat signs a multi-launch Proton rocket deal

The competition heats up: Satellite maker Eutelsat has signed a seven year multi-launch deal with International Launch Services (ILS) using the Proton rocket.

The ILS press release does not state how many launches this contract covers, which makes me suspect that ILS was forced due to competition with SpaceX to give Eutelsat a great deal of flexibility about which launcher it uses with each satellite down the road. The ILS release even admits this. ““With their selection of ILS Proton for this Multi-Launch Agreement Eutelsat has made a clear statement that flexibility and schedule assurance are key discriminators.”

This is still a good thing for the Russians, as it insures them a share in the launch market for almost the next decade.

0 comments
1 635 636 637 638 639 785