| Tail Number / N-Number | N31LL |
| Manufacturer | DEYOUNG JOHN |
| Model | MUSTANG MII |
| Year Built | 1993 |
| Manufacturer's Serial Number | MII 1239 |
| 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 | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Corporation |
| Owner Name | CLAYPOOL & ASSOCIATES INC |
| Street | 50 EMERY ST |
| City | PAHRUMP |
| State | NV |
| Zip Code | 89048-4668 |
| Region | Western-Pacific |
| County | Nye County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2002-06-26 |
| Certificate Issue Date | 2007-07-13 |
| Last Action Date | 2020-07-20 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 50642575 |
| Mode S Code Hex | A3457D |