Tach meter
A tach meter — short for tachometer, sometimes spelled “tacho” — is an hour meter that accumulates at a rate proportional to engine RPM. At cruise RPM a tach typically logs time close to one hour per elapsed hour; at low RPM on the ground, a tach runs slower. This makes tach time a better proxy for engine wear than wall-clock hours, which is why many syndicates use it to drive maintenance intervals.
In Syndik8, a tach reading is a meter reading. A pilot records a start value and an end value on every usage log. The label is configurable on the asset — “Hobbs”, “Tacho”, or a custom name — and the same billing and pre-fill logic applies regardless of what the meter is called.
Contrast with a Hobbs meter, which runs at a constant rate whenever the engine is running.