| Tail Number / N-Number | N688DM |
| Manufacturer | HAMMETT MARTIN |
| Model | ZENITH STOL CH 750 |
| Year Built | 2010 |
| Manufacturer's Serial Number | 75-7616 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | O-200-D |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Kit Manufacturer | ZENITH AIRCRAFT CO |
| Kit Model | STOL CH 750 |
| Type of Registrant | Individual |
| Owner Name | HAMMETT MARTIN |
| Street | 661 HALEY RD |
| City | CLAYTON |
| State | LA |
| Zip Code | 71326-4123 |
| Region | Southwestern |
| County | Concordia Parish |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2010-10-29 |
| Certificate Issue Date | 2010-09-16 |
| Last Action Date | 2021-03-17 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52220506 |
| Mode S Code Hex | A92146 |