Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

An armored manta-ray-shaped small submarine for commercial and military applications

10:50 am

Kronos sub

A private company, Highland Systems, that was founded in the Ukraine but now is based both in the UK and the UAE, appears to be building an armored manta-ray-shaped small submarine for both commercial and military applications.

It’s designed for a mix of commercial, military and allegedly rescue operations – and from the looks of the stark, largely windowless interior, it certainly doesn’t seem interested in tourism or luxury. A little over 9 m (29.6 ft) long, Kronos will weigh somewhere around 10,000 kg (22,000 lb). Its fat wings will fold upward, allowing you to tow it on a trailer if you wish to cause a series of gawking-related accidents among oncoming traffic.

Plonk it in the water, and it’ll seat 10 passengers plus a driver. The hybrid powertrain marries a diesel generator to a 1,200-horsepower, 2,400-Nm (1,770-lb-ft) electric motor driving a waterjet propulsion system. It can dive to a working depth of 100 m (328 ft), or a max critical depth of 250 m (820 ft), which is pretty decent in the scheme of things. The air supply is good for around 36 hours.

The performance figures are nuts. Highland says it’ll do 80 km/h (50 mph) on top of the water, or 50 km/h (31 mph) underwater; that’s seriously fast through water, just ask Michael Phelps. It carries enough battery on board for a 36-hour all-electric mission, or you can fire up the diesel generator to add a further 18, taking total range up to a very impressive 54 hours of autonomy. There’s adaptive lighting, an automated life support system and air-con – and the schematics show spots for torpedoes as well.

Nor is this entirely a fantasy of the company. It has already built the submarine’s main shell.

As the quote notes, though the company claims this submarine will have civilian uses, the submarine being built now seems entirely military in nature, especially because there is no information at all about the customer paying for its construction. Also, note the torpedoes shown in the schematic above, as well as the packed passengers. Since the company has its roots in the Ukraine, I can just imagine it being used by the Ukraine to transport soldiers to the Crimea on an undercover sabotage mission to destroy Russian assets.

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Indian company delivers Gaganyaan fairing and high altitude launch abort motor to ISRO

10:28 am

Capitalism in space: The Indian private company, Hindustan Aeronautics Limited, yesterday delivered to India’s space agency ISRO the fairing and high altitude launch abort motor that will be used in Gaganyaan, that nation’s first manned spaceflight.

Though the article at the link does not say so, the fairings and abort motor will likely be used in one of two unmanned launch abort test flights ISRO intends to do before the actual manned mission, now set for sometime in ’24.

Hindustan Aeronautics is also a space company in India that will require watching. It not only built these major components for Gaganyaan, it also has built major components for India’s PSLV and GSLV rockets. It would not surprise me if the company eventually decides to build its own rocket, assuming the India government loosens the stranglehold it presently has over space and lets private companies compete against its government space operations. It was a similar stranglehold by NASA from the 1970s to the 2000s that squelched competition and innovation from the American private aerospace industry. When that ended, the renaissance in commercial space finally could begin.

UPDATE: It appears I was in error assuming Hindustan Aeronauts was a private company, as it is owned by the Indian government. I have edited the post above to reflect this. It appears the stranglehold the government has over India’s aerospace industry is no closer to loosening.

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Firefly completes a dress rehearsal countdown of Alpha rocket; schedules launch

10:14 am

Capitalism in space: Having successfully completed both a full dress rehearsal countdown and static fire test of its fully stacked Alpha rocket, Firefly Aerospace has now scheduled the rocket’s launch for September 11, 2022.

These details come from a tweet by the company, so details are very limited. Nonetheless, this will be the company’s second attempt to complete an orbital launch. The first attempt, in September 2021, failed when one of its first stage engines shut down prematurely.

The company had hoped to attempt this second launch ten months ago, but was forced to delay it when the federal government demanded its chief investor, Ukrainian billionaire Max Polykov, first sell off his share in the company.

Hat tip to BtB’s stringer Jay.

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Raytheon & Northrop Grumman successfully complete the second flight of a hypersonic missile prototype

10:04 am

Raytheon and Northrop Grumman, working in partnership, have successfully flown a hypersonic missile prototype for the second time in eleven months.

For the latest test, the HAWC prototype was carried under the wing of an aircraft and flown to high altitude, where it was released. A solid rocket booster then accelerated the vehicle to supersonic speed and a scramjet ignited. An engine without moving parts, a scramjet uses its forward motion to compress the incoming air into a shockwave that burns with fuel, producing enough thrust to propel the missile to over five times the speed of sound.

The latest prototype had only minor modifications from the previous flight and met all of its objectives. The data recovered by telemetry will be used to improve the digital models using artificial intelligence, machine learning, and big data, which will increase the efficiency and performance as the weapon concept comes closer to practical deployment.

As this is a military project, not many details about the prototype were released, such as its size, speed, design.etc. One shouldn’t even trust the illustrations of the missile, provided by Northrop Grumman. Each shows the missile with a rounded lifting body shape on its bottom side, likely to protect and guide it on its re-entry, but there is no guarantee the illustrations’ shape matches that of the real missile.

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Maritime Launch Services signs land lease for its Nova Scotia spaceport

9:54 am

Capitalism in space: Maritime Launch Services yesterday obtained a 20-year land lease for its Nova Scotia spaceport from the province of Nova Scotia.

The lease covers 334.5 acres, and is renewable for an additional 20 years.

Unlike other spaceports, Maritime isn’t merely providing a launch site for rocket companies. Instead the company will also launch smallsats itself, using a Ukrainian-built rocket dubbed the Cyclone-4M. Initially the plan was to fly all launches in this manner, but the invasion of the Ukraine by Russia has caused Maritime to look for other launch providers as well.

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Starship gets its first communications satellite customer

9:38 am

Capitalism in space: Sky Perfect JSAT, a Japanese satellite communications company, today awarded SpaceX a launch contract using its giant Starship/Superheavy rocket to put its Superbird-9 communications satellite into orbit in 2024.

Superbird-9 will be launched by SpaceX’s Starship launch vehicle in 2024 to geosynchronous transfer orbit. SpaceX’s Starship is a fully reusable transportation system that will be the world’s most powerful launch vehicle. SKY Perfect JSAT and SpaceX will continue to work together ahead of the launch of Superbird-9 Satellite.

Sky Perfect is the first communications satellite company to choose Starship for a satellite launch. It is however the rocket’s fourth signed customer. Japanese billionaire Yusaku Maezawa made a deal in 2018 for a flight around the Moon, while NASA chose Starship in 2021 as the manned lunar lander in its Artemis program. UPDATE: SpaceX also has a second private manned customer, Jared Isaacman, whose present deal with SpaceX calls for two Dragon flights followed by a Starship flight.

Sky Perfect is not a new company, with sixteen satellites already in orbit providing communications, broadband, and entertainment to Japan and the Far East. It likely made this deal because it got a very good launch price, with options to back out if the rocket’s on-going development gets delayed by too much. It also made the deal because it helps to solidify Starship’s future, something Sky Perfect probably sees as a win considering the significant reduction of launch costs expected from Starship/Superheavy.

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A “What the heck!?” crater on Mars

3:16 pm

A
Click for full image.

Today’s cool image falls into what I call my “What the heck?” category. The photo to the right, cropped and reduced to post here, was taken on May 31, 2022 by the high resolution camera on Mars Reconnaissance Orbiter. It was also picked by the science team as that camera’s picture of the day on July 12, 2022. From the caption:

This seems to belong to a class of craters in the Cerberus Plains that was flooded by lava, which was subsequently uplifted and fractured by an unknown process. This class of filled, uplifted and fractured craters is informally called “the waffle.” A combination of volcanic and periglacial processes seems possible.

In other words, the scientists only have a vague idea what created the broken up floor of this crater. For example, why did only the material in the interior of the crater get uplifted and fractured? Did this uplift occur before, during, or after the lava event?

The overview map below tells us a little about where that lava came from, and when.
» Read more

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Universe’s most massive star is found to be less massive than previously believed

2:18 pm

The uncertainty of science: Using data from the Gemini South telescope in Chile, astronomers have determined that the universe’s most massive star, dubbed R136a1, is actually less massive than previously believed.

By pushing the capabilities of the Zorro instrument on the Gemini South telescope of the International Gemini Observatory, operated by NSF’s NOIRLab, astronomers have obtained the sharpest-ever image of R136a1 — the most massive known star. This colossal star is a member of the R136 star cluster, which lies about 160,000 light-years from Earth in the center of the Tarantula Nebula in the Large Magellanic Cloud, a dwarf companion galaxy of the Milky Way.

Previous observations suggested that R136a1 had a mass somewhere between 250 to 320 times the mass of the Sun. The new Zorro observations, however, indicate that this giant star may be only 170 to 230 times the mass of the Sun. Even with this lower estimate, R136a1 still qualifies as the most massive known star.

What astronomers are trying to figure out is the highest possible mass a star can possibly have. This new data suggests that this upper limit is smaller than previously believed.

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Today’s blacklisted American: UC-San Diego to hold segregated events, excluding whites and Asians

11:59 am

University of California-San Diego's segregated Welcome Week
Click for original.

“Segregation today, segregation tomorrow, segregation forever!” In its upcoming welcoming program in September for new students, the University of California-San Diego plans to hold racially segregated events that specifically excludes whites and Asian students and families from attending.

The flyer ad to the right, announcing the program dubbed Triton Weeks of Welcome, specifically includes two such events, as indicated in red. Both are exclusively for specific minorities, and those minorities only.

The group running the Black Surf week, Black Like Water, explains the purpose of its racially-segregated event as follows:

Through our research and practice, Black Like Water seeks to promote healing, restoration, and sovereignty in ways that do the liberatory work of combating anti-blackness and interrupting structural racism, but in manners that celebrate the Black diaspora, acknowledge ancestral practices and knowledge, and imagine Black futures.

» Read more

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August 18, 2022 Quick space links

10:50 am

As stringer Jay correctly noted to me in an email today, “Slow news day.” None of the stories below merit a full post, even though they are pretty much all of today’s space news.

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Russian spacewalk ends earlier due to spacesuit power problem

9:34 am

A Russian spacewalk yesterday to continue the configuration of Europe’s robot arm for the Russian half of ISS was cut short after four hours when the power system in Oleg Artemyev’s spacesuit begin producing unexpected “voltage fluctuations.”

“I have a message, voltage low,” Artemyev radioed Russian ground controllers around 12 p.m. EDT (1600 GMT). An engineer at Russia’s mission control center near Moscow warned Artemyev he would lose communications if his suit ran out of power.

Russian flight director Vladimir Solovyov then jumped on the line to tell Artemyev to head back to the safety of the airlock. “Oleg, this is Solovyov,” he said. “Drop everything and start going back (to the airlock) right away. Oleg, go back and connect to station power.”

This problem occurred about two hours into the spacewalk. The second astronaut, Denis Matveev, continued working at the robot arm for another two hours before mission control ordered him to end the walk early.

According to Russian officials, Artemyev was never in any danger, though the urgency in which he was ordered to come inside suggests otherwise. According to another news report, a power loss could have also shut down the spacesuit’s “pumps and the fan.”

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