As an engineer, woodworker and model helicopter pilot I often hear the phrase "dialled in" to refer to a thing which has been perfectly set up.
Examples include: a table saw whichis dialled in when it has a perfectly square fence and whosea table which is perfectly aligned with the saw blade, orblade; a helicopter whichis dialled in when it is perfectly balanced and has the control input sensitivity "just right" for the pilot.
I was just wondering if anyone knows where the phrase "dialled in" came from? One wild guess is that it comes from the use of a dial indicator to make very small adjustments to achieve a high level of precision.