| Mitchell Model AK514 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK515 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK517 | Auto-Control IIIB | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK518 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK519 | Century IIB | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK520 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK521 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK522 or AK522FD | Century IV Autopilot or Century IV Flight Director | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK522, AK522FD | - | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK522FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK523 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK524 | Century IIB | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK525 or AK525FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK525, AK525FD | - | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK525FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK527 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK528 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK529 | Altimatic IIIC Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK530 | AutoControl IIIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK531 | Autoflite II Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK532 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK533 | Century III | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK536 or AK536FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK536FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK537 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK538 | Command Electric Trim | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK539 or AK539FD | Century IV Autopilot & Century IV Flight Director Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK539/FD | Century IV Autopilot or Century IV Flight Direct Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK540 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK541 | Command Electric Trim System | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK544 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK545 | Command Electric Trim | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK546 | Century IIB | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK547 | Century I | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK548 | Century III Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK549 | Century I | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK550 | Century IIB | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK551 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK552 | Century II B Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK553 | Century I. | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK554 | Century I Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK555 | Century IIB Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK556 or AK556FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK556FD | Century IV Autopilot or Century IV Flight Director Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK557 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK560 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK561 | Century III Autopilot | Century Flight Systems Inc | | 22 | Flight Controls | PMA |
| Mitchell Model AK562 | Century IIB Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK563 | Command Electric Trim | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |
| Mitchell Model AK564 | Century I Autopilot | Century Flight Systems Inc | — | 22 | Flight Controls | PMA |