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Ken Shirriff

The pressure signals go to differentials (circle-X symbols). Then cams (CCD) apply various functions. Finally, synchro transmitters generate 3-phase electrical outputs that drive pilot instruments, weapons systems, and so forth.

6 comments
Ken Shirriff

Temperature is important because it affects air density. A platinum probe measures temperature through varying resistance. Another servo feedback system produces temperature rotations. The CADC is modular: temperature is this wedge-shaped module.

Ken Shirriff

Synchros convert a rotation into three electrical signals. Connecting the three wires to another synchro reproduces the rotation at a remote location, e.g. pilot instruments. Numerous synchros provide outputs from the CADC.

Ken Shirriff

I wrote a blog post about the Bendix Central Air Data Computer with more details and photos: righto.com/2023/02/bendix-cent

John Gordon

@kenshirriff Was this the ultimate mechanical computer? What could rival it?

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