Author Topic: Titanium Falcon  (Read 13179 times)

Online envy887

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Re: Titanium Falcon
« Reply #40 on: 08/25/2017 01:54 AM »
That much weight for the landing gear just seems way to high. Just my opinion.

John

He did say "less than a Model S", but that has to be the right ballpark for a comparison. The legs are quite large.

https://twitter.com/elonmusk/status/330054002148515841

Offline Robotbeat

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Re: Titanium Falcon
« Reply #41 on: 08/25/2017 03:42 AM »
The legs are really long. That's why they weigh a lot. A squatter stage could use shorter and more efficient legs.
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

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Offline john smith 19

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Re: Titanium Falcon
« Reply #42 on: 08/25/2017 01:58 PM »
The legs are really long. That's why they weigh a lot. A squatter stage could use shorter and more efficient legs.
Good point.

That's what happens when you try to turn something that's not designed to carry out a task into something that can do it, rather than go with a clean sheet approach.

Good thing the "exchange rate" between stage dry mass and payload mass lost is so high for first stages, otherwise SX could have been in real trouble.
BFS. The worlds first Methane fueled FFORSC engined CFRP structured A380 sized aerospaceplane tail sitter capable of flying in Earth and Mars atmospheres. BFR. The worlds biggest Methane fueled FFORSC engined CFRP structured booster for BFS. First flight to Mars by end of 2022. Forward looking statements. T&C apply. Believe no one. Run your own numbers. So, you are going to Mars to start a better life? Picture it in your mind. Now say what it is out loud.

Offline john smith 19

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Re: Titanium Falcon
« Reply #43 on: 08/25/2017 02:07 PM »
No comments yet about the ability/complexities to FSW Ti?
Not a showstopper Researched since at least 1995

http://www.twi-global.com/technical-knowledge/published-papers/friction-stir-welding-of-titanium-alloys-a-progress-update/

Titanium is also extremely amenable to diffusion Bonding as the protective oxide can be dissolved by the metal.
BFS. The worlds first Methane fueled FFORSC engined CFRP structured A380 sized aerospaceplane tail sitter capable of flying in Earth and Mars atmospheres. BFR. The worlds biggest Methane fueled FFORSC engined CFRP structured booster for BFS. First flight to Mars by end of 2022. Forward looking statements. T&C apply. Believe no one. Run your own numbers. So, you are going to Mars to start a better life? Picture it in your mind. Now say what it is out loud.

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