Brief Description: Test ELT, Swing compass, calibrate fuel gauges
Replaced almost timed out battery for the ELT ... now good through 9/2023. Replaced in plane and ops tested good.
Calibrated the tank fuel senders .. 0, 5, 10, 15, 20 gallons, both sided in ground and flight attitudes.
Swung the compass on the local compass rose. The rose consists of nails pounded into the pavements on one of the taxiways. Stretched a rope across the compnass points and spray panted on top ... leaves nice shadow of the rope on the tarmac when done. Aligned the compass with radio on for the four cardinal directions, and then swung the plane every 30 deg for the card. Deviations are about 5 deg or less.