John Livingston

Retired Aerospace Engineer. Systems Design Analysis

[John Livingston @livingjw]

@GoingBallistic5 J̣̌y Ubmbnbnn Nnamdi 5 BBIAB khjjk

[John Livingston @livingjw]

@brad_rothenberg These are jokes. Right?

[John Livingston @livingjw]

@engineers_feed It depends on the gravity field. We know it's down but what strength?

[Elon Musk @elonmusk]

🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

[John Livingston @livingjw]

@mcrs987 It's right out of the text books and papers. I don't see the problem.

[John Livingston @livingjw]

@mcrs987 I guess I will restart mine then. Nothing magic about the cycle or turbo machinery. My work to date is in NSF under livingjw.

[John Livingston @livingjw]

@engineers_feed BS it's always better to just add span when possible.

[John Livingston @livingjw]

@Alexphysics13 RDE using LOx LCH4 has approx effective press ratio of 12. A single stage cent. LOx impeller can easily produce a press ratio well over 100. A LCH4 impeller well over 30. I don't see them as competitive with pump fed rockets.

[John Livingston @livingjw]

@JackKuhr @IanCinnamon ~1/20 th of a football field.

[John Livingston @livingjw]

@Gentleman_Ways Offering an arm to a lady in need.

[John Livingston @livingjw]

@astrobotic Not even Isp given let alone propellants or feed pressures.

[John Livingston @livingjw]

@CSI_Starbase LOx injector for CH4 preburner ?

[John Livingston @livingjw]

@jonathanschouel @EMostaque More of both.

[John Livingston @livingjw]

@DerekVBK @TheDudeWadlo Sometimes

[John Livingston @livingjw]

@buitengebieden Come on guys, they were groundhog!

[John Livingston @livingjw]

@Architectolder White classic

[John Livingston @livingjw]

@Architectolder @MrsKinder Way to skinny.

[John Livingston @livingjw]

@storshun @RGVaerialphotos Basically. Lots of fiddly bits as well. 🙂

[John Livingston @livingjw]

@heydyvex @DavidDeutschOxf Love Popper's metafor of civilization as a city built in a swamp on pilings of knowledge.

[John Livingston @livingjw]

@SpaceX Easy bake oven