Table 3 GAA Objectives Name Takeoff noise (NOISE) Empty weight (WEMP) Direct operating cost (DOC) Ride roughness (ROUGH) Fuel weight (WFUEL) Purchase price (PURCH) Range (RANGE) Lift-drag ratio (LDMAX) Cruising speed (VCMAX) Product Family Penalty Function (PFPF) Description Measurement of noise at takeoff Weight of the aircraft without passengers Cost of flying the aircraft Measure of flight roughness Weight of fuel Price of purchase Flight range A measure of flight performance Aircraft cruising speed A measure of commonality across aircraft families (2,4 and 6 seats) 1970$/hr Minimize Unit Preference dB Minimize lb Minimize ratio Minimize lb Minimize 1970$ Minimize nmi Maximize ratio Maximize Knots Maximize Unitless Minimize 27 =2 dj = max dj = max Jattained; - goal; attained; - ,0} for minimization objectives {goal, attained,, 0}, for maximization objectives