CAP – Cessna Differences TrainingSummer 2016 Cessna Aircraft Differences Training (Autopilots)
CAP – Cessna Differences TrainingSummer 2016 Objectives / Content Summarize key differences between: KAP 140 Autopilot Garmin GFC 700 Automatic Flight Control System
CAP – Cessna Differences TrainingSummer 2016 The information in this briefing is intended to serve as a departure point for discussion during CAP flight evaluations and transition training. It should not be interpreted or used as a substitute for the detailed information provided in the Airplane Flying Manual or Pilot’s Operating Handbook for each aircraft model.
CAP – Cessna Differences TrainingSummer 2016 Automatic Flight Control Systems KAP 140GFC 700 Two axis autopilot with pitch and roll Pilot must use rudder for coordinated flight and throttle for power (no yaw damper or auto throttles) Rate-based (info from TC)Attitude-based (info from AHRS) Engaging AP engages VS & roll holdsEngaging AP engages pitch & roll holds Vertical components include: Vertical Speed Hold (VS) Altitude Pre-select Altitude Hold Glide slope capture Vertical components include: Vertical Speed Hold (VS) Altitude Pre-select Altitude Hold Glide slope / glide path capture Flight Level Change (FLC) Vertical navigation (VNAV) Go-Around Mode (GA) Flight Director (can be used with or without the autopilot) Control Wheel Steering (CWS)
CAP – Cessna Differences TrainingSummer Press yoke AP disconnect. 2.Autopilot disconnects. 3.Climb, stay on final approach course. 4.Press OBS/SUSP when SUSP annunciated. 5.Press CDI to switch nav source to GPS. Go-Around Differences 1.Press go-around (GA) button by throttle. 2.Autopilot disconnects. 3. GA/GA horizontal/vertical mode annunciated. 4.Straight-ahead guidance provided. 5.GPS automatically sequences to missed approach (un-SUSP). 6.CDI nav source automatically switches to GPS. KAP 140 Actions & Expectations Note: Review your aircrafts POH, any differences the POH governs. Different software updates may also have differences GFC 700 Actions & Expectations
CAP – Cessna Differences TrainingSummer 2016 Failure ofEffect on GFC 700Effect on KAP 140Other impacts MFDNoneROL, VS, ALT Modes onlyNAV2/COM2 Lost PFDLoss of AP and FDNoneNAV1/COM1 Lost AHRSLoss of AP and FDROL Mode only ADCLoss of AP, FD functions in PIT Mode, all lateral modes of FD function Loss of Alt Pre-Select and AlertsA/S, Alt, VS, OAT lost AHRS/ADCLoss of AP and FD, MET availableROL Mode onlyLOC/GS still available MagnetometerLoss of HDG Mode, vertical modes still available, NAV modes available if engaged at time of failure, ROL available Reverts to ROL Mode Any Display Respective NAV/COM, reversionary mode Failure Modes
CAP – Cessna Differences TrainingSummer 2016 C182 Must be disengaged: IFR - <200 AGL and VFR < 800 AGL Autopilot maximum engagement speed – 165 KIAS Autopilot minimum engagement speed – 70 KIAS Electric trim maximum operating speed – 175 KIAS Maximum fuel imbalance with the autopilot engaged – 90 pounds Limitations C172 Must be disengaged: IFR - <200 AGL and VFR < 800 AGL Autopilot maximum engagement speed KIAS Autopilot minimum engagement speed - 70 KIAS Electric trim maximum operating speed KIAS Maximum fuel imbalance with autopilot engaged - 90 pounds G1000 Autopilot Failure Modes: GFC 700 Limitations KAP 140 Limitations Note: Review your aircraft’s POH for specific guidance. Be aware that software updates may introduce more differences. Cessna T182T / 182T (Reference the appropriate PIM for the complete list of limitations) Maximum Airspeed KIAS Minimum Airspeed - 80 KIAS Recommended Approach Speed KIAS Maximum Flap Extension - 10 deg Cessna 172R/S (Reference the appropriate PIM for the complete list of limitations) Maximum Airspeed KIAS Minimum Airspeed - 70 KIAS Recommended Approach Speed - 80 KIAS Maximum Flap Extension - 10 deg