Sec. 23.659 - Mass balance. The supporting structure and the attachment of concentrated mass balance weights used on control surfaces must be designed for -- (a) 24 g normal to the plane of the control surface; (b) 12 g fore and aft; and
The supporting structure and the attachment of concentrated mass balance weights used on control surfaces must be designed for --
(a) 24 g normal to the plane of the control surface;
(b) 12 g fore and aft; and
(c) 12 g parallel to the hinge line.