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First complete BE-4 engines have been assembled
The first complete BE-4 engines have been assembled. http://www.theverge.com/2017/3/6/148...origin-rocket- engine-be-4-new-glenn http://www.geekwire.com/2017/jeff-be...rocket-engine/ This is not a small engine. Two of these will give the first stage of Vulcan more thrust than one Russian RD-180 gives Atlas V. Jeff -- All opinions posted by me on Usenet News are mine, and mine alone. These posts do not reflect the opinions of my family, friends, employer, or any organization that I am a member of. |
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First complete BE-4 engines have been assembled
Jeff Findley wrote:
The first complete BE-4 engines have been assembled. http://www.theverge.com/2017/3/6/148...origin-rocket- engine-be-4-new-glenn http://www.geekwire.com/2017/jeff-be...rocket-engine/ This is not a small engine. Two of these will give the first stage of Vulcan more thrust than one Russian RD-180 gives Atlas V. Note that they've just gotten the first one built, but it's never been fired. They have a long way to go, particularly at the glacial speed that Blue Origin usually moves. It has around 2/3 the thrust of a SpaceX Raptor, which was test fired last year. -- "The reasonable man adapts himself to the world; the unreasonable man persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man." --George Bernard Shaw |
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First complete BE-4 engines have been assembled
On 3/7/2017 3:38 PM, JF Mezei wrote:
is there some FAA-like process to put multiple engines through various tests before they are certified for flight? Or it is still more of a "wild west" approach when the company decides when/how the engine is OK to be put on a rocket and send up? It's mostly the "wild west" and will be for at least a few more years. The FAA Office of Commercial Space Transportation regulates that stuff. https://www.faa.gov/about/office_org...s_offices/ast/ BUT! There is a law, HR2262, greatly limits FAA's authority until 2023. "The legislation means that private space travel is still considered young, and lawmakers have given the industry more time to experiment and gather data."It allows the industry to grow, to test, and to develop without this overshadow of the regulatory hammer coming down on them,"" |
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First complete BE-4 engines have been assembled
JF Mezei wrote:
On 2017-03-07 01:13, Fred J. McCall wrote: Note that they've just gotten the first one built, but it's never been fired. Typically would the first one be fired ? Or just used to verify manufacturing and that parts fit? Once you've got it put together, why WOULDN'T you test fire it? It doesn't matter if "parts fit" if the bloody thing doesn't work. is there some FAA-like process to put multiple engines through various tests before they are certified for flight? I doubt it. Just what would a regulatory agency require it to do, given that engines are different? Or it is still more of a "wild west" approach when the company decides when/how the engine is OK to be put on a rocket and send up? I doubt it. If the thing isn't suitable for its mission, you're not going to be in business very long. -- "Some people get lost in thought because it's such unfamiliar territory." --G. Behn |
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First complete BE-4 engines have been assembled
JF Mezei wrote:
On 2017-03-07 18:45, Fred J. McCall wrote: I doubt it. Just what would a regulatory agency require it to do, given that engines are different? I was thinking about making sure they are sufficiently tested before allowed to be part of a fully fueled rocket that could explode at some launch pad. And how would you do that? What tests would you specify? The folks using them have a vested interest in doing that, but 'that' is going to be different depending on the engine. I guess launch pads are differets icne they are isolated from population and rockets have range safety, which aeroplanes don't. first engine produced. Note that Boeing et all wll sacrifice early production fuselates/wings to stress testing to measure at what force they break. (destructive testing). I bvelieve aircraft engines are also tested similarly (to ensure blade containment is sufficient). Was just wondering if there are similar tests they do. (or perhaps it is the turbopumps which have destructive testing before the first engine is put together. I think there are probably two different approaches to this sort of testing; test all the pieces separately or put all the pieces together and test a full up engine. There are advantages and disadvantages to which mix of those two approaches are done. -- "Oooo, scary! Y'know, there are a lot scarier things in the world than you ... and I'm one of them." -- Buffy the vampire |
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