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A comment on Launch HN: H3X (YC W21) – High power density electric aircraft motors.

Re:Launch HN: H3X (YC W21) – High power density electric air... by baybal2 on Monday February 22, 2021 @06:35PM (#26232104)
A trick question. How heavy is your gearbox, and not a motor?

Getting ridiculous power to weight ratios on electric power is not that hard if you opt for super high RPMs.

By my standards, what matters in electric motors are their torque per weight.

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Re:Launch HN: H3X (YC W21) – High power density electric air... by reasonabl_human on Monday February 22, 2021 @06:43PM (#26232160)
It’s integrated in the motor as specified in the post
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Re:Launch HN: H3X (YC W21) – High power density electric air... by baybal2 on Monday February 22, 2021 @06:49PM (#26232200)
What are gearbox servicing requirements?
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Re:Launch HN: H3X (YC W21) – High power density electric air... by emaciolek on Monday February 22, 2021 @07:15PM (#26232391)
Initial gearbox design life is ~40k hours. Bearing life is expected to be upwards of 10k hours. Additionally bearings are designed to be easily replaced. Oil change interval is to be determined during endurance testing.
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