| Mitchell Model AK727 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK728 or AK728FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK730 | Century I Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK731 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK732 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK737 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK738 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK739/FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK741 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK742 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK743 or AK743FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK744 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK745 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK746 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK751 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK752 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK753 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK754 or AK754FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK755 | Piper Altimatic IIIC Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK756 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK757 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK758 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK759 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK760 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK761 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK762 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK763 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK764 or AK764FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK765 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK767 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK768 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK769 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK770 | Command Electric Trim | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK771 or AK771FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK774 or AK774FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK775 | Altimatic IIIC Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK776 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK777 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK778 | Command Electric Trim System | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK779 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK780 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK782 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK800 or AK800FD | Century 41 Autopilot or Century 41 Flight Director | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK801 or AK801/FD | Century 41 Autopilot or Century 41 Flight Director | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK802 | Century 21 Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK803 | Century 21 Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK804 or AK804FD | Century 41 Autopilot or Century 41 Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK807 or AK807FD | Century 41 Autopilot or Century 41 Autopilot Flight Director | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK808 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK810 or AK810FD | Century 41 Autopilot or Century 41 Flight Director | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |