Staggermania
Well-Known Member
I am seeking opinions for using a different airfoil on the Air Car I plan on building.
For those unfamiliar with the Air Car, it is a 4 place amphibian, plans built (mostly wood, with a fiberglass cabin and skin over plywood, with a steel tube car frame connecting wing and hull and engine.)
Very cool plane
Empty Weight 2200-2600 lbs
Gross Weight 3200 lbs
Cruise 120-140 mph
The current airfoil is a 4412, which, from all reports has been a good performer on this plane.
I am going to go from a strut braced to a cantilever wing.
I thinking I might like to go aluminum. I’d like to move the fuel to the wing from its current position above hull and below engine. I am also contemplating retractable wingtip floats.
I am considering the Riblett 35 and 37 series airfoils, with a 15 % to 18 % thickness, for fuel and strength.
I would like thoughts as to which of these series would be appropriate to this project, and any other thoughts you’d like to contribute.
Thanks
For those unfamiliar with the Air Car, it is a 4 place amphibian, plans built (mostly wood, with a fiberglass cabin and skin over plywood, with a steel tube car frame connecting wing and hull and engine.)
Very cool plane
Empty Weight 2200-2600 lbs
Gross Weight 3200 lbs
Cruise 120-140 mph
The current airfoil is a 4412, which, from all reports has been a good performer on this plane.
I am going to go from a strut braced to a cantilever wing.
I thinking I might like to go aluminum. I’d like to move the fuel to the wing from its current position above hull and below engine. I am also contemplating retractable wingtip floats.
I am considering the Riblett 35 and 37 series airfoils, with a 15 % to 18 % thickness, for fuel and strength.
I would like thoughts as to which of these series would be appropriate to this project, and any other thoughts you’d like to contribute.
Thanks
