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A comment on 1953 US Navy training film on mechanical computers [video]. Parent comment

Re:1953 US Navy training film on mechanical computers [video] by bluGill on Tuesday August 20, 2024 @11:24AM (#41300920)
50 years ago that was true. Sometime ago though (I don't know when, but I'd guess starting in the 1990s) they changed to electronic computers. Using electronics makes some things simpler and puts the complex parts in standard hardware (a CPU is much more complex but it isn't custom designed for you), or software (easy to change if you get it wrong.
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Re:1953 US Navy training film on mechanical computers [video] by SoftTalker on Tuesday August 20, 2024 @12:21PM (#41301417)
For the fuel injection and ignition (spark) timing yes, but the camshafts to open and close the valves are still driven by a gear, belt or chain. Even variable valve timing is mostly controled by mechanical or hydraulic means, though I'm guessing some electronics may be involved.
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Re:1953 US Navy training film on mechanical computers [video] by bluGill on Tuesday August 20, 2024 @02:04PM (#41302386)
This is about transmissions.
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Re:1953 US Navy training film on mechanical computers [video] by SoftTalker on Tuesday August 20, 2024 @04:31PM (#41303758)
Upthread mentioned camshafts and valves, guess my reply is mostly to that.
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Re:1953 US Navy training film on mechanical computers [video] by xeonmc on Tuesday August 20, 2024 @01:06PM (#41301816)
FreeValve
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Re:1953 US Navy training film on mechanical computers [video] by all2 on Wednesday August 21, 2024 @12:24PM (#41311749)
Context? What is FreeValve?
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Re:1953 US Navy training film on mechanical computers [video] by xeonmc on Wednesday August 21, 2024 @12:32PM (#41311846)
It replaces cams with electronic actuators
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Re:1953 US Navy training film on mechanical computers [video] by mywittyname on Tuesday August 20, 2024 @04:36PM (#41303802)
Yeah, but the electronic control in 4 speeds was basically replicating the mechanical control of the previous generation. So it was more of an incremental improvement over old tech.

Whereas modern 6+ speed transmissions are very different in design and control.

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