2019-05-23

@nichegamer @flcnhvy @Erik2be @Teslarati Tower with Knight is across road from SpaceX, looking at rocket

@flcnhvy @Erik2be @Teslarati Part of the factory is being upgraded, but tours will continue around the parts that aren’t

@EcoHeliGuy @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Yes, will be used for rear cargo storage. Also helps manage center of mass for heavy payloads when forward cargo is full.

@Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Outer engines are attached to the edge of the airframe to give the center engines room to move

@Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX ~2.8m

@alijamalashraf @Erdayastronaut @MichaelGalanin @SpaceX Turbines on hot side (outer fan-looking things in this depiction), but this is just to illustrate the type of engine. Our turbopumps are vertical, have 3 fan-looking things on pump side & complex cross-flow. Liquid oxygen turbopump is integrated with main combustion chamber.

@Erdayastronaut @Malcolmmarsman @flcnhvy @marstronauts @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Horizontally

@flcnhvy @Malcolmmarsman @marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX First flights would have fewer, so as to risk less loss of hardware. Probably around 20.

@InsideEVs So it goes

@Malcolmmarsman @flcnhvy @marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX 3 months

@flcnhvy @marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Hopefully, 4 months

@marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Vacuum nozzle engines are only used in (near) vacuum conditions. Sea level engines need to gimbal rapidly & at high angle for landing. Larger nozzle leaves less room to move & increases moment of inertia.

@Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Yeah. Outer engines with much larger nozzles are fixed to airframe, inner engines have high gimbal range ~15 degrees

@tommleach @trigomemetry https://t.co/ViY0WgtfOZ

@trigomemetry Sure

@DirkSmit76 Two tunnels about a mile long each

@Debapratim15 @curiousmind44 @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX @JeffBezos Yes

@curiousmind44 @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX @JeffBezos Makes no sense. In order to grow the colony, you’d have to transport vast amounts of mass from planets/moons/asteroids. Would be like trying to build the USA in the middle of the Atlantic Ocean!

@_ishanspatil @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Aiming for 150 tons useful load in fully reusable configuration, but should be at least 100 tons, allowing for mass growth

@SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX N2 for vacuum. Aero surfaces & high gimbal angle main engines for atmosphere.

@SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Hoping for 380 sec Isp, but at least 370. Otherwise similar to sea level version.

@13ericralph31 @JaneidyEve @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Aspirationally

@JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX 3 sea level optimized Raptors, 3 vacuum optimized Raptors (big nozzle)

@13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX After the GoT finale, we dropped it to 6

@SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Mk1 & Mk2 ships at Boca & Cape will fly with at least 3 engines, maybe all 6

@bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX About to complete SN5, ramping to an engine every 3 days this summer

Boring Company starts digging Vegas tunnel in 2 months. Aiming to finish by end of year.

@Orion_Sword @Some1gee @Erdayastronaut @SpaceX The turbine also spins though. Partially combusted gas drives the turbine wheel, which is attached to a shaft that turns the inducer & impellers.