This standard provides minimum performance criteria for air data instruments intended to provide cockpit indication of:

a. Indicated airspeed (V_i)

b. Computer airspeed (V_c)

c. True airspeed (V_t)

d. Equivalent airspeed (V_e)

e. Mach number (M)

f. Altitude (H)

g. Vertical speed (H_pr)

h. Maximum operating limit speed (V_mo)

i. True angle of attack (a_t)

j. Free air temperature (T_fat)

k. Total temperature (T_t)

These functions shall be derived from a central air data computer (AS 417) and through system wiring applied to the respective indicator.