4 ms·

I'm not sure how the flywheel speed is sensed, though. I don't think it was explained in the video, unless I missed something? Also, I am clueless about imperi

I'm not sure how the flywheel speed is sensed, though. I don't think it was explained in the video, unless I missed something? Also, I am clueless about imperial units (or rather, I make a conscious effort to not convert them...).

lostlogin 6y ago
> I am clueless about imperial units As am I. I had a laugh today when I stumbled across an interface in Siemens medical software that requires patient height and weight. I could enter ‘metric’ or ‘U.S.’ values.
- KineticLensman 6y ago
  > requires patient height and weight. I could enter ‘metric’ or ‘U.S.’ values My scales has three settings, which I respectively think of as metric, US and British: kilos, pounds and stones+pounds.
- rsynnott 6y ago
  This is likely because US imperial/standard isn’t the same as the old UK imperial. Height and weight were the same (though I don’t think the US uses stone) but volume is different; a US pint is not the same as a UK pint.
elteto 6y ago
Might not be necessary as the intended range was a short 500 yards (~455 meters).
- MayeulC 6y ago
  Well, the video does explain that the pitch of the propeller blades increases to compensate the flywheel slowing down: https://youtu.be/xTRBbFX7AxA?t=343 https://youtu.be/xTRBbFX7AxA?t=343 This just made me realize that hydraulic couplings could be (and are) used for continuously variable transmission systems :)