1. 8516. The following is a table of airspeed limits as given in an FAA-issued aircraft specification: Normal operating speed ..................................260 knots Never-exceed speed .......................................293 knots Maximum landing gear operation speed .........174 knots Maximum flap extended speed........................139 knots The high end of the white arc on the airspeed instrument would be at A. 260 knots. B. 293 knots C. 139 knots