The wings page details size, airfoil, weight, moment factors.
The wings present a number of interrelated problems. First, the problem of interchangeable wings Second, the problem of support of the aircraft through a turn in a 60 degree bank ( 2 g’s ) followed by a turn of smaller diameter - a stress of shear at the base of the wing to a design limit of 6 g’s and the inclusion of a margin of error or safety factor. Also, wing warping in turbulent air needs to be considered and addressed.
Positive and negative g forces need to be considered with regard to the aircraft’s operating and maximum weight and wind conditions.
External solutions trade additional drag, such as: an additional support from the wing to the aluminum wheel struts for takeoff and landing.
Gyroscopic effect turns when the propeller is about 27% of the prop diameter or larger. Prop: 14 in. / 98 in. wingspan = 0.14 or 14%.
Botmite Thrust to Weight Ratio: 1.2 to 1
141 ounces or 8.821 pounds thrust
Rate of Climb: (determined by availability of excess power)
Wing Loading: 6 lbs. per square foot for glider
Botmite (7.5 lbs.): 2.11 lbs. per square foot
Airfoil: cited Eppler 374 mod - as it is not produced to metal machining standards, this is an approximation. This is a low Reynolds Number Airfoil.
It is defined as a sloped racer airfoil.
Wortmann FX 63-137 - another excellent choice airfoil
Typical Reynolds Number for model aircraft: 250,000 and