[media]https://twitter.com/elonmusk/status/780275236922994688[/media]
[editline]26th September 2016[/editline]
[media]https://twitter.com/elonmusk/status/780278836860628992[/media]
[quote]interplanetary transport engine[/quote]So cool that this is finally happening.
if SpaceX can deliver working reusable reliable BFR+ITS then Sol is ours ...
at least I do hope
[QUOTE=Killer900;51107214]So cool that this is finally happening.[/QUOTE]
Now we just need to wait until going to the moon is as affordable as a plane ticket
Beautiful blue flame.
The thought of human space travel becoming a thing within my life time makes me moist
sweet sweet full-flow staged combustion engine jesus that's a sexy flame
This will be one of three full-flow staged combustion rocket engines ever produced, and certainly the only one to see any real use. One engine was russian, one is a dead Aerojet Rocketdyne experiment, and now we've got this one that will be hauling folks to Mars! Badass.
Fusion rockets make me moist, but Kyle902 is justified in feeling like he does :D
[editline]26th September 2016[/editline]
and because i should probably explain wtf the big deal is: full flow staged combustion uses two preburners and two turbopumps, one for oxidizer and one for fuel. this isn't the norm, and the preburners also drive the turbopumps for their respective fuel lines. One of the biggest PITAs of rocket engine manufacture and maintenance is the ridiculous seal you need to keep the oxider and fuel separate in the usually united turbopump. Its less than ideal to have high-temperature gasified propellants mixing in a turbine rather than in the nozzle. You can probably guess why :v:
Removing the need for this component tremendously decreases the need for maintenance. Additionally, since you can pump the mass flow rate up considerably the turbines can be run cooler and at lower pressure too (common in a thermodynamic system, you see it a lot in gas turbines and powerplants). This also decreases the maintenance required.
Lastly, the preburners help ensure that you get nearly full gasification of the propellants: converting anything to a gas takes a fuckload of energy, so removing the need to do this at all (in the nozzle section at least) greatly increases the efficiency of your engine.
tldr, this engine is a badass
[QUOTE=paindoc;51114123]sweet sweet full-flow staged combustion engine jesus that's a sexy flame
This will be one of three full-flow staged combustion rocket engines ever produced, and certainly the only one to see any real use. One engine was russian, one is a dead Aerojet Rocketdyne experiment, and now we've got this one that will be hauling folks to Mars! Badass.
Fusion rockets make me moist, but Kyle902 is justified in feeling like he does :D
[editline]26th September 2016[/editline]
and because i should probably explain wtf the big deal is: full flow staged combustion uses two preburners and two turbopumps, one for oxidizer and one for fuel. this isn't the norm, and the preburners also drive the turbopumps for their respective fuel lines. One of the biggest PITAs of rocket engine manufacture and maintenance is the ridiculous seal you need to keep the oxider and fuel separate in the usually united turbopump. Its less than ideal to have high-temperature gasified propellants mixing in a turbine rather than in the nozzle. You can probably guess why :v:
Removing the need for this component tremendously decreases the need for maintenance. Additionally, since you can pump the mass flow rate up considerably the turbines can be run cooler and at lower pressure too (common in a thermodynamic system, you see it a lot in gas turbines and powerplants). This also decreases the maintenance required.
Lastly, the preburners help ensure that you get nearly full gasification of the propellants: converting anything to a gas takes a fuckload of energy, so removing the need to do this at all (in the nozzle section at least) greatly increases the efficiency of your engine.
tldr, this engine is a badass[/QUOTE]
Why haven't people been using these engines before then, if they're such an improvement over engines with a single turbopump?
[QUOTE=Headhumpy;51114271]Why haven't people been using these engines before then, if they're such an improvement over engines with a single turbopump?[/QUOTE]
Cheaper to buy RD-180s from Russia because ULA [del]is[/del] was a government sanctioned monopoly.
[editline]26th September 2016[/editline]
Basically, the government [I]really[/I] only cares about being able to reliably lob their spy satellites into orbit.
[editline]26th September 2016[/editline]
Basically the private sector is the best thing to happen to Space since the Moon Landing.
Coolest thing to see ever.
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