The Airwave rear wings are much smaller than our front wings so their weight is less of an issue. Regardless, all Airwave Rear wings are made from carbon as the connection point with the fuselage needs to withstand a lot of stress.
Width
The wider your rear wing, the more roll stability your setup will exhibit. Winglets or anhedral/dihedral shapes will aid in directional stability, fighting yaw. But those variations will affect the roll stability less than downright width.
Chord
The more chord your rear wing features (leading edge to trailing edge), the more pitch stability you will have. Interestingly, fewer wingspan and narrower chords will create a more responsive foiling setup. make for a faster reaction in their roll and pitch directions.
