12 Nov 2024, 15:36 [ UTC - 5; DST ]
|
Username Protected
|
Post subject: Re: Spacex Starship OFT Posted: 03 Nov 2024, 10:56 |
|
|
|
|
|
Joined: 12/10/07 Posts: 33225 Post Likes: +12318 Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
|
|
Username Protected wrote: Thrust: The Saturn V's five F1 engines generated 7.6 million pounds of thrust, while the Super Heavy's 33 Raptor 3 engines generate 19.5 million pounds of thrust.
Actually the V3 Raptor is claimed to produce 560,000 lb of thrust which is about one third of the 1,500,000 lb thrust produced by a single Rocketdyne F1 engine. To get the same total thrust that the Saturn IV made would require about 14 V3 Raptors. The specific impulse (a measure of a rocket engine's efficiency) of the two engines in space is pretty similar but the Raptor is slightly better (Raptor V3: 350, F1: 304). Some of that difference is due to the use of methane vs kerosene for fuel. When I saw the first pictures of the V3, I assumed they left off most of the control hardware but given that they've shown videos of that same engine in a static fire test I guess I was wrong and those pictures are of a complete, ready to fire engine.
_________________ -lance
It's easier to fool people than to convince them that they have been fooled.
|
|
Top |
|
Username Protected
|
Post subject: Re: Spacex Starship OFT Posted: 03 Nov 2024, 17:29 |
|
|
|
|
|
Joined: 07/19/10 Posts: 2882 Post Likes: +1327 Company: Keller Williams Realty Location: Madison, WI (91C)
Aircraft: 1967 Bonanza V35
|
|
Username Protected wrote: When I saw the first pictures of the V3, I assumed they left off most of the control hardware but given that they've shown videos of that same engine in a static fire test I guess I was wrong and those pictures are of a complete, ready to fire engine. The story is that they moved everything 'inside' by using 3D printing to manufacture, in addition it's all fuel cooled.
|
|
Top |
|
Username Protected
|
Post subject: Re: Spacex Starship OFT Posted: 03 Nov 2024, 18:56 |
|
|
|
|
|
Joined: 12/10/07 Posts: 33225 Post Likes: +12318 Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
|
|
Username Protected wrote: When I saw the first pictures of the V3, I assumed they left off most of the control hardware but given that they've shown videos of that same engine in a static fire test I guess I was wrong and those pictures are of a complete, ready to fire engine. The story is that they moved everything 'inside' by using 3D printing to manufacture, in addition it's all fuel cooled. With 3D printed manifolds no less.
_________________ -lance
It's easier to fool people than to convince them that they have been fooled.
|
|
Top |
|
Username Protected
|
Post subject: Re: Spacex Starship OFT Posted: 03 Nov 2024, 22:04 |
|
|
|
|
|
Joined: 04/26/13 Posts: 21223 Post Likes: +21266 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
|
|
It was enough to fool Tory Bruno who tweeted “They have done an excellent job making the assembly simpler and more producible. So, there is no need to exaggerate this by showing a partially assembled engine without controllers, fluid management, or TVC systems, then comparing it to fully assembled engines that do.” Gwynne Shotwell replied with this image of the same engine firing on the test stand: https://x.com/gwynne_shotwell/status/18 ... vUBm_gIWjA“Works pretty good for a “partially assembled” engine ” Attachment: IMG_0984.jpeg
Please login or Register for a free account via the link in the red bar above to download files.
_________________ My last name rhymes with 'geese'.
|
|
Top |
|
Username Protected
|
Post subject: Re: Spacex Starship OFT Posted: 06 Nov 2024, 16:02 |
|
|
|
|
|
Joined: 03/23/08 Posts: 7320 Post Likes: +3970 Company: AssuredPartners Aerospace Phx. Location: KDVT, 46U
Aircraft: IAR823, LrJet, 240Z
|
|
OFT#6 target is Monday the 18th of November in the afternoon. From the SpaceX update at X: An inflight Ship relight. Steeper ship reentry profile to make it more spicy... Key tiles omitted to see how that goes Daylight ship splashdown. Various improvements Booster catch. Flight 7 will be the first of the New Ship with lots of changes.
_________________ Tom Johnson-Az/Wy AssuredPartners Aerospace Insurance Tj.Johnson@AssuredPartners.com C: 602-628-2701
|
|
Top |
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum
|
Terms of Service | Forum FAQ | Contact Us
BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a
forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include
the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner,
Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.
BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates.
Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.
Copyright© BeechTalk, LLC 2007-2024
|
|
|
|