Article

2019-03-11 -Land of the Free

Raptor Rocket Engine spotted at Texas Rocketyard!

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Posted by 3dc 2019-03-11 06:11|| || Front Page|| [13 views ] Top

#1 I added "rocket engine" to the title.

Posted by Bright Pebbles 2019-03-11 12:17|| 2019-03-11 12:17|| Front Page Top

#2 takes the fun out of it bright pebbles.... heh..
Note the word Rocketyard like Shipyard. This is the first rocket being built outside like a ship.

Posted by 3dc 2019-03-11 12:28|| 2019-03-11 12:28|| Front Page Top

#3 "Ooooh! Looook! It's a rocket engine! Nobody ever made one of those before!

Enjoys nice warm feeling in the front of pants...

Posted by M. Murcek 2019-03-11 12:39|| 2019-03-11 12:39|| Front Page Top

#4 SLS takes budget cut with open commercial bidding also announced for Moon and Deep Space un-manned missions previously set aside for SLS

Posted by 3dc 2019-03-11 14:34|| 2019-03-11 14:34|| Front Page Top

#5 Actually, nobody has made one quite like the Raptor before.

The Raptor is a full-flow staged combustion methalox engine. There is a lot of new technology in that sentence. Highest specific impulse and a chamber pressure of any engine out there,including the legendary Russian RD-270. All of the mass of propellants in the engines passes through the turbopumps and/or turbines before entering the combustion chamber. That means there is a fuel-rich turbopump and a oxidizer rich turbopump. No methane-powered engines have been used for orbital rockets. High chamber pressure of the rocket allows for many advantages, notably mugh higher thrust and specific impulse versus size. And higher pressures mean the fuel is more completely converted to energy, meaning much more efficient.

A lot of firsts. Still a lot of tests to be done.

Posted by Vespasian Unairt7733 2019-03-11 22:46|| 2019-03-11 22:46|| Front Page Top

#6 mugh higher thrust

So payloads only, not manned?

Posted by Skidmark 2019-03-11 23:42|| 2019-03-11 23:42|| Front Page Top

23:43 Skidmark
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23:08 CrazyFool
22:46 Vespasian Unairt7733
22:39 Vespasian Unairt7733
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21:53 Silentbrick
21:23 Frank G
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20:02 Voldemort Jase6572
18:58 charger
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17:55 Woodrow
17:35 USN, Ret.
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