The POH in Chapter 2 a note states “except for takeoff, fuel in the selected tank can be safely used until the quantity indicator reads empty …”
OK, what’s the minimum fuel for takeoff (or more likely a go around/missed approach) in a selected tank that can be safely used? 30 gallons (probably a lot less)? 5 gallons? I’ve never flown with that little fuel, & don’t intend to do so, but I’d like to know.
After diverting to an alternate, I could imagine having only 10 gallons left ( 1 hour). Maybe 9 & 1 (& feeding off the 9) would be a safer go around than 5 & 5 in each tank (still allowing for one hour of fuel remaining).
Someone told me 6 gallons was the minimum, but I can’t find that written anywhere.