TM 1-1510-225-10 3C-30 Table 3C-1.  Autopilot System Limits  (Continued) MODE CONTROL OR SENSOR PARAMETER VALUE Pitch Sync TCS Switch on Control Wheel Pitch Attitude Command ± 20° ALT Hold Air Data Computer ALT Hold Engage Range 0 to 50,000 ft ALT Hold Engage Error ± 20 ft Pitch Limit ± 20° Pitch Rate Limit Function of (TAS) VS Hold Air Data Computer VERT Speed Engage Range 0 to ± 6000 ft/min Engage Error ± 30 ft Pitch Limit ± 20° Pitch Rate Limit Function of (TAS) IAS Hold Air Data Computer IAS Engage Range 80 to 450 knots IAS Hold Engage Error ± 5 knots Pitch Limit ± 20° Pitch Rate Limit Function of (TAS) ALT Pre-select Air Data Computer Pre-select Capture Range 0 to 50,000 ft Maximum Vertical Speed   for Capture ± 4000 ft/min Maximum Gravitational Force ± .2g During Capture Maneuver Pitch Limit ± 20° Pitch Rate Limit Function of (TAS) 1.  Pitch Wheel 2.  BANK LIMIT Selector/Light 3.  SOFT RIDE Switch 4.  TURN Knob 5.  Yaw Damp ENGAGE Push Button 6.  Autopilot ENGAGE Push Button 7.  Elevator TRIM Annunciator Figure 3C-14.  Autopilot Controller