| Mitchell Model AK605 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK606 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK607 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK609 | Century I Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK611 | Century II B Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK612 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK613 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK614 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK615 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK617 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK618 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK620 | Century II B Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK621FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK624 or AK624FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK626 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK627 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK629 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK630 | Century I Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK632 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK633 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK634/FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK635 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK636 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK637 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK638 | Piper Altimatic IIIC Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK639 | Piper Autocontrol IIIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK640 | Piper Autoflite II Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK641 and AK641FD | Century IV Autopilot and Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK642 | Century III | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK643 | Century IIB | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK644 | Century I | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK645 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK646 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK647 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK649 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK650 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK651 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK652 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK653 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK654 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK656 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK657 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK658 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK659 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK660 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK661 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK662 or AK662FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK662/FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK663 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK665 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |