Darrel Starr
Registered User
Plymouth, MN
I don't have a written explanation of the bump but as I understand the graph, that is the enriching coming into play at full throttle.
So: we have decided we are talking about fuel flow at cruise. One poster says that he compares gallons consumed with the hour meter.
Since I do neither of those things, no wonder I burn more fuel than others do. My fuel burn computations are takeoff to touchdown wrist watch times, compared to gallons added next stop. I get 4.5 in the 85 HP J-3 and 9 GPH in the 180 Decathlon and 10 in the 200 Mooney.
It is the pilot's responsibility to load the airplane within the proper CG range. A properly loaded 180 long wing Cub is a dream to fly, as is a 150 stock short wing Cub.
The best cubs were the 90 hp versions because they had the furthest aft CG,