15 years of Elon, fully searchable. The production archive uses Supabase as the source of truth, with 94,952 indexed tweets available in development as a full-archive fallback and a curated annotation layer for context, theory, and how major claims aged.
“@Erdayastronaut @torybruno @MartianDays @AerojetRdyne Max thrust version of Raptor should achieve true T/W > 170. Target is 1.5 ton engine with >260 t-F. Max Isp version should achieve ~380 sec, but T/W probably <120 due to big nozzle. These are just guesses for now.”
“@torybruno @Erdayastronaut @MartianDays @AerojetRdyne This is true. All that matters is number used in ∆v equation. Propellant residuals are incredibly important, often overwhelming engine mass. https://t.co/s2LcEapGAU https://en.m.wikipedia.org/wiki/Delta-v”
“@annerajb @Thebault_Arthur Working with engineering team to figure out best way to do upgrade without crushing service team. Will start doing upgrades in volume in a few months, coincident with more FSD features being released.”
“@AngelNDevil2 @MarkChica @FutureJurvetson @bluemoondance74 @SpaceX It’s all the “secondary” structure that concerns me, not engines & primary airframe”
“@AngelNDevil2 @MarkChica @FutureJurvetson @bluemoondance74 @SpaceX Raptor cost is tracking to well under $1M for V1.0. Goal is <$250k for V2.0 is a 250 ton thrust-optimized engine, ie <$1000/ton”
“@engineers_feed Lot of ways to melt & join steel. Mostly just needs to be welded consistently & with precise parts.”
“@engineers_feed Thankfully not. FSW is very difficult to get right & not needed with steel.”
“Inside Starship cargo bay. Header tanks mounted in tip of nosecone to offset engine weight at rear. https://t.co/EJSwqMCooA”
“@Erdayastronaut @Cor_SPACE There’s so much power going through this engine that it’s close to the limit of the known physics of materials in many places”
“@Teslarati This includes original engineering of new factory processes & cars. Great engineers will only join if original engineering is supported, not just localization.”
“@Teslarati Tesla is building a major engineering team in China, incl heavy focus on software/firmware for factory & car”
“@Teslarati Great work by SpaceX parachute engineering! The Crew Dragon parachutes are way more difficult than they may seem. The Apollo program found them to be so hard that it became a notable morale problem!”
“@chrisleehawaii @Tesla Much better chess engine coming”
“@MercedesBenz Very meaningful action by the company that invented the internal combustion engine. People will remember this day. Respect.”
“@DJSnM @Erdayastronaut @KevinKling12 @spaceXcentric Not currently planning for pad abort with early Starships, but maybe we should. Vac engines would be dual bell & fixed (no gimbal), which means we can stabilize nozzle against hull.”
“@engineers_feed Looks like a wheel of cheese”
“@flying_briann @SciGuySpace Stacking fairing & tanks soon, then adding control fins, engines & landing gear”
“@dbabrams @BangOlufsen Tesla audio engineers come from B&O & many other companies. They literally rōq. Our system is highly programmable, so we keep improving it via OTA codec updates.”
“Passing fad. Like steam engines. They look cool in a museum.”
“Engine cam https://t.co/3cWHU50353”
“@bcart03 @engineers_feed Yes”
“@engineers_feed 200m hop in a week or two”
“@MemesOfMars @kimitalvitie @SpaceX Center 7 engines gimbal to 15 degrees”
“@kimitalvitie @SpaceX Outer engines stick out slightly from 9m diameter, don’t gimbal & are mechanically joined at nozzle”
“@justpaulinelol @annerajb @highlyaaronic Probably have slots for up to 37 engines, but can decontent as needed. Starship update after Hopper hover.”
“@PatrickLac007 @AngelGPonce @Tesla Parking lots are a remarkably hard problem. Doing an in-depth engineering review of Enhanced Summon later today.”
“@Erdayastronaut @justpaulinelol @mayemusk @SpaceX Between first development engine & first flight engine with operational payload, there are always hundreds of changes to both hardware & software. Over time, thousands.”
“@NebraskaJR @Ninja Jet A (kerosene) has much higher energy density than Li-ion, but electric motors weigh much less & convert stored energy to motion better than combustion engines”
“@justpaulinelol @MattLBates @Erdayastronaut High entry force & heat breached engine bay & center engine TVC failed”
“@Scobleizer @Tesla @teslaownersSV 🖤 Tesla Software Engineering 🖤”
“@Elthiryel @Erdayastronaut @13ericralph31 @HarryStoltz1 @flcnhvy Yes, they run at *much* higher pressure, but lower temperature. Thermal shock & strain are what fatigue Merlin turbine blades. Solvable for high reusability, but better to apply that engineering to Raptor.”
“@Erdayastronaut @flcnhvy Raptor liberated its oxygen turbine stator (appears to be mechanical, not metal combustion failure), so we need to update the design & replace some parts. Production is ramping exponentially, though. SN6 almost done. Aiming for an engine every 12 hours by end of year.”
“@tmornini @Tesla Tesla is putting significant resources into high-efficiency battery recycling. Makes both environmental & economic sense. Please consider joining if interested in recycling engineering!”
“@eugenelee3 @engineers_feed Yes, demographics, stratified by age, will look like an upside down pyramid with many old people & fewer young”
“@engineers_feed Real issue will an aging & declining world population by 2050, *not* overpopulation. Randers estimate far more accurate than UN imo: https://t.co/cdHf62bxpb https://en.m.wikipedia.org/wiki/Projections_of_population_growth”
“@flcnhvy @bluestonenew @DigitalTrends @SpaceX Might get pushed to next month. Starhopper flight first. Waiting on engine repair.”
“@cleantechnica Good analysis. Both computers will be used & sync ~20 times per second. This is a long time to a computer. Like a twin-engine plane, use both engines to max for normal operation, but can safely operate on just one.”
“@M_xalher @Tesla @ValueAnalyst1 Given how many countries are limiting or setting an end date for combustion engine cars, their future resale value cars will be low. Consumers are starting to realize this.”
“@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”
“@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.”
“@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”
“@SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX N2 for vacuum. Aero surfaces & high gimbal angle main engines for atmosphere.”
“@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”
“Also porting Unreal Engine”
“@KetanKavaiya123 @engineers_feed √-1 2^3 3.14 😋”
“@engineers_feed Physics demands the impedance of resistance, because it’s not real”
“@engineers_feed What makes resistance complex is that it’s half imaginary!”
“Reality is a Tesla, like most electric cars, is over 500% *less* likely to catch fire than combustion engine cars, which carry massive amounts of highly flammable fuel. Why is this never mentioned?”
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