AS9100 Rev D/ISO 9001:2015 Certified
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LC-6 Chronometer
(DAI Part# LC6)
The Astrotech LC-6 is a precision, five-function quartz chronometer designed specifically to meet the increased demands of IFR and VFR flight.

The Astrotech LC-6 chronometer uses a custom designed large scale integrated circuit (LSI) chip containing several hundred transistors. The LSI chip is attached to a single circuit board, a simplified construction technique resulting in a high degree of reliability and performance Circuitry is not subject to dirt, vibration, friction, or wear characteristics of mechanical clock movements.

Clock 12-hr. local time (LT) & 24-hr. universal coordinated time (UTC)
Elapsed Timer 100-hr. capacity stopwatch (SW), stop & resort or reset to zero
Flight Timer 100-hr. capacity started & stopped by external input (i.e. landing gear)
Down-Counter Presettable in hrs., min., & sec. for timing approaches or fuel management. May be wired for external alarm.
Display Continuous readout using a LCD for excellent visibility in direct sun
Power The LC-6 comes in various part numbers (see table below) and the part number determines power requirements. Panel mounted parts have an internal AAA battery for backup when aircraft power is removed
Weight Less than 5 oz. (141.8 g)
Installation Installs directly into standard 2.25” (57.2 mm) clock panel cutout for the panel part numbers, or mounts in the specified aircraft control wheels (see table below for part numbers)
Environmental LC-6 is qualified to all of the applicable sections of RTCA DO-160 for electrical & mechanical compliance
P/N Model Description
AT660100 LC-6 Panel mounted, aircraft powered, intenal AAA keep-alive battery, 14 & 28V lamps included. National Stock No. 6645-01-198-3831