SpaceX Using Deep Cryo Liquid Oxygen

A dish best served cold SpaceX uses supercooled, “deep cryogenic” liquid oxygen, or LOX, to propel its Falcon 9 rockets. This is colder than more commonly used liquid oxygen which is chilled only to its condensation temperature. Principle 35 – Parameter Change The advantage is that the oxidizer is more dense, allowing SpaceX to cram more onto their rocket.…

Why Not a 4 Motor Tesla?

One motor per wheel The notion of having one motor per wheel in an electric vehicle like a Tesla has been mooted and debated. The consensus seems to be that the pros (electronic authority over torque vectoring – no mechanical bits required, eliminating the weight of a differential) are outweighed by the cons (additional cost…

Model Y Tesla – Taking Out

“The wiring harness on Model S is about 3 kilometers in length. The wire harness on Model 3 is 1.5 kilometers in length. The wiring harness on Model Y will be 100 meters. And that’s a redundant wiring harness.” Elon Musk, Q1 2017 earnings call While Tesla is still struggling to ramp up production of…