Jeff Bezos Muses About Those Underappreciated Engine Components – Bearings

Finding its bearing: Orbit plot with starting shaft location (red dot) marking each revolution as shaft spirals to its center during propellant fluid film pressurization. (Credit: Blue Origin)

By Jeff Bezos

Although the BE-4 turbopump is smaller than your refrigerator, it generates 70,000 horsepower from a turbine running at nearly 19,000 revolutions per minute that pumps cryogenic propellants to pressures just under 5,000 pounds per square inch. To react the forces generated by the rotating turbine and impellers inside the pump, production rocket turbopumps to date have used traditional ball and roller bearings. For BE-4, we’re doing something different – we’re using hydrostatic bearings.
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OneWeb Breaks Ground on Satellite Factory at Kennedy

One Web Satellites Ground Breaking ceremony at Exploration Park. (Credit: NASA/Kim Shiflett)

KENNEDY SPACE CENTER, Fla. (NASA PR) — The portfolio of NASA’s Kennedy Space Center will soon include large-scale satellite manufacturing following Thursday’s groundbreaking for a 150,000-square foot spacecraft factory in the center’s Exploration Park.

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Bezos Provides More Details on New Glenn

Jeff Bezos unveiled a video simulation of a New Glenn launch (above) at the Satellite 2017 conference in Washington, DC, this morning. He revealed that Eutelsat is the first customer to sign up for a launch.

The booster is designed to lift 45 tons to low Earth orbit and 13 tons to geosynchronous transfer orbit. The first stage is also designed to be launched 100 times. It will have six landing legs.

I had hoped he would reveal something of his lunar delivery service plan that is circulating among policy makers in Washington, But, Bezos said not a word about it.

NASA’s Commercial Cargo & Crew Spending

Dragon spacecraft in orbit. (Credit: NASA)

In announcing its plan to send two people around the moon using the Falcon Heavy and Dragon 2 in 2018 before NASA can do so using its own rocket and spaceship, SpaceX paid tribute to the space agency that has funded its rise.

“Most importantly, we would like to thank NASA, without whom this would not be possible,” SpaceX said in a statement. “NASA’s Commercial Crew Program, which provided most of the funding for Dragon 2 development, is a key enabler for this mission.”

NASA funding has been behind Elon Musk’s company every step of the way as SpaceX has developed Dragon and the Falcon 9 booster upon which the Falcon Heavy is based. So, no NASA and, in all likelihood, no SpaceX.

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A Look at Launches in 2016

Atlas V launches the NROL-61 satellite. (Credit: ULA)

Excerpt from

The Annual Compendium of
Commercial Space Transportation: 2017
Federal Aviation Administration
Office of Commercial Space
Transportation (FAA AST)

January 2017

2016 Launch Events

Space launch activity worldwide is carried out by the civil, military, and commercial sectors. This section summarizes U.S. and international orbital launch activities for calendar year 2016, including launches licensed by the Federal Aviation Administration’s Office of Commercial Space Transportation (FAA AST). Countries and jurisdictions worldwide that possess functional and operating indigenous launch industries are the United States, Russia, China, European Union, India, Japan, Israel, Iran, North Korea, and South Korea. Several other countries, including Argentina, Brazil, and Indonesia, are developing launch vehicle technologies.

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Bezos to Reveal Something on Tuesday

Blue Origin’s Jeff Bezos is expected to announce something on Tuesday in a speech at the Satellite 2017 conference in Washington, DC.

I’m guessing it will be an elaboration on the company’s plans for establishing a base at the south pole of the moon. He also will likely provide updates on the testing schedule for the BE-4 engines (pictured above), development of the New Glenn booster, and construction of the company’s manufacturing facility in Florida.

A Look at Payloads Launched in 2016

Built by Lockheed Martin, the WorldView-4 satellite will expand DigitalGlobe’s industry-leading constellation of high-accuracy, high-resolution satellites, and double the availability of 30 cm resolution imagery for commercial and government customers around the globe. (Credit: Lockheed Martin)

Excerpt from

The Annual Compendium of
Commercial Space Transportation: 2017

Federal Aviation Administration
Office of Commercial Space Transportation (FAA AST)

January 2017

State of the Payload Industry

Space industry companies and organizations worldwide, sometimes the same as launch vehicle manufacturers but also those specifically dedicated to spacecraft manufacturing, produce these spacecraft. Commercially launched payloads are typically used for the following mission types:

  • Commercial communications satellites;
  • Commercial remote sensing or Earth observation satellites;
  • Commercial crew and cargo missions, including on-orbit vehicles and platforms;
  • Technology test and demonstration missions, usually new types of payloads undergoing test or used to test new launch vehicle technology; and
  • Other commercially launched payloads, usually satellites launched for various purposes by governments of countries not having indigenous orbital launch capability.

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Bezos Proposes Lunar Plan

Jeff Bezos

Amazon Lunar Prime?

Jeff Bezos has submitted a plan for developing a moon base to NASA and the Trump Administration.

The latest to offer a proposal is Jeffrey P. Bezos, whose space company Blue Origin has been circulating a seven-page white paper to NASA leadership and President Trump’s transition team about the company’s interest in developing a lunar spacecraft with a lander that would touch down near a crater at the south pole where there is water and nearly continuous sunlight for solar energy. The memo urges the space agency to back an Amazon-like shipment service for the moon that would deliver gear for experiments, cargo and habitats by mid-2020, helping to enable “future human settlement” of the moon. (Bezos, the founder of Amazon.com, owns The Washington Post.)

“It is time for America to return to the Moon — this time to stay,” Bezos said in response to emailed questions from The Post. “A permanently inhabited lunar settlement is a difficult and worthy objective. I sense a lot of people are excited about this.”

[….]

Blue Origin’s proposal, dated Jan. 4, doesn’t involve flying humans, but rather is focused on a series of cargo missions. Those could deliver the equipment necessary to help establish a human colony on the moon — unlike the Apollo missions, in which the astronauts left “flags and footprints” and then came home.

The prospect of a lunar mission has several companies lining up to provide not just transportation, but also habitats, science experiments and even the ability to mine the moon for resources.

Read the full story.

Blue Origin’s New Shepard Finalist for Prestigious Collier Trophy

The New Shepard capsule separates from its booster as the abort motor fires. (Credit: Blue Origin)

WASHINGTON, DC, February 2, 2017 (NAA PR) — The National Aeronautic Association announced today that four aerospace projects and accomplishments will compete for the 2016 Robert J. Collier Trophy.

For 105 years, the Collier Trophy has been the benchmark of aerospace achievement. Awarded annually “… for the greatest achievement in aeronautics or astronautics in America,”
it has been bestowed upon some of the most important projects, programs, individuals, and accomplishments in history.

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Proposed Florida Budget Includes $17 Million for Blue Origin Launch Complex

Brig. Gen. Steven Garland, 14th Air Force vice commander, left, provides remarks at a Blue Origin media event held at Space Launch Complex 36 at Cape Canaveral Air Force Station, Florida, Sept 15, 2015. (Credit: USAF/Matthew Jurgens)

Billionaire Jeff Bezos’ Blue Origin would receive $17 million in assistance from Florida taxpayers to renovate a dormant Cape Canaveral launch complex under Gov. Rick Scott’s proposed 2017-18 budget.

The governor’s office said the budget for the 2017-18 fiscal year starting July 1 includes $34 million for launch complex improvements that “will help attract more commercial activity to the area.”

Space Florida confirmed the total includes $17 million from the Florida Department of Transportation to help prepare Launch Complex 36, a state-run pad last used in 2005, into a site for Blue Origin’s giant New Glenn orbital rockets. The company also plans to build an engine test stand, incorporating the adjacent Launch Complex 11.

Blue Origin, the private space firm started by Amazon.com’s billionaire founder and CEO Jeff Bezos, will match the state’s investment, resulting in the $34 million budget figure cited by the state.

Bezos and Scott in September 2015 visited Launch Complex 36 to announce Blue Origin’s plans to build and launch rockets locally.

“The pad has stood silent for more than 10 years — too long,” Bezos said then. “We can’t wait to fix that.”

Read the full story.

Save

A Tribute to the Ox Boost Pump by Jeff Bezos

BE-4 Ox Boost Pump prior to engine installation. (Credit: Blue Origin)

Robert Goddard’s first rockets used compressed gas to force the liquid propellants into the engine thrust chambers. While simple in design and a logical starting point, he quickly realized the limitations with this approach: it requires thick-walled heavy propellant tanks and limits the engine’s chamber pressure and performance, both of which limit payload capacity. The answer was turbopumps. Store the propellants in low-pressure light tanks, and then pump the propellants up to high pressure just ahead of injection into the main chamber.

For even more performance, you can add one or more boost pumps ahead of the main pumps. We’ve done that on the oxidizer side of our BE-4 engine. Our Ox Boost Pump (OBP) design leverages 3-D additive manufacturing to make many of the key components. The housing is a single printed aluminum part and all of the stages of the hydraulic turbine are printed from Monel, a nickel alloy. This manufacturing approach allows the integration of complex internal flow passages in the housing that would be much more difficult to make using conventional methods. The turbine nozzles and rotors are also 3-D printed and require minimum machining to achieve the required fits.

The OBP was first demonstrated last year in testing, where we validated its interaction with a main pump. The second iteration of the OBP for BE-4 is now in test. We’ve also just finished assembly of the unit that we’ll install for the first all-up BE-4 engine test.

We’ll keep you posted on how our BE-4 powerpack and engine testing progresses.

Gradatim Ferociter!

Jeff Bezos

The Year Ahead in Space

Donald Trump (Credit: Michael Vadon)
Donald Trump (Credit: Michael Vadon)

It’s going to be busy year in space in 2017. Here’s a look at what we can expect over the next 12 months.

A New Direction for NASA?

NASA’s focus under the Obama Administration has been to try to commercialize Earth orbit while creating a foundation that would allow the space agency to send astronauts to Mars in the 2030’s.

Whether Mars will remain a priority under the incoming Trump Administration remains to be seen. There is a possibility Trump will refocus the space agency on lunar missions instead.

Rep. Jim Bridenstine (R-OK), who is currently viewed as a leading candidate for NASA administrator, has written two blog posts focused on the importance of exploring the moon and developing its resources. Of course, whether Bridenstine will get NASA’s top job is unclear at this time.

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The Year in Suborbital Launches

The New Shepard capsule separates from its booster as the abort motor fires. (Credit: Blue Origin)
The New Shepard capsule separates from its booster as the abort motor fires. (Credit: Blue Origin)

Although orbital launch vehicles get all the glory (and infamy when they fail), 2016 was also a busy year for the far less glamorous suborbital launch sector. There were 19 suborbital launches at various sites around the world, and two more sounding rocket launches of note where the payload didn’t go above 100 km.
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