Avionics Report

September 1999 Issue

Digital Tachs

With very little difference in installed price, Horizon’s P-1000 leads the pack in value and features.

Digital watches have been around since the 1970s, along with digital calculators and even a smattering of digital indicators in cars.

And even though the digital revolution has swept the GA cockpit, steam-driven gauges persist, notably tachometers and manifold pressure gauges. Of the two, the tach lends itself most readily to a digital display.

The tachometer is the primary means of engine control, at least for airplanes with fixed pitch props. Shouldn’t it be the most precise and easiest to read? The answer is yes and three companies have digital tachometer offerings that are a cut above that old junker tach that needs periodic replacement or repair.

Horizon Instruments has a...

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