I had the wing tank float gauges and took them off. Gained 2 mph and lost little information. It only showed when I was down about 4 gal. in each tank and from there on I was on my own. I now keep a foot long ruler and in my preflight, I stick the tank:
In 1970 I was working the night lineman at the Bloomington airport, and would gas the Ozark DC10s. One night the pilot called and told me the right wing gauge wasn't working and I would have to "stick the tank" When he landed I told him I didn't know what he meant and he got a ladder and yardstick, stuck it in the tank and found how much fuel was in it. I told him "I hope the passangers didn't see that". The best news, "the stick never lies"
