| Tail Number / N-Number | N51M |
| Manufacturer | SOMMERFIELD WALLY |
| Model | P51D |
| Manufacturer's Serial Number | 25 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | FAIRCHILD |
| Engine Model | 6-440 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Type of Registrant | Individual |
| Owner Name | SKERLICH ALEXANDER |
| Street | 1651 VON BRYAN CT |
| City | LAS VEGAS |
| State | NV |
| Zip Code | 89102-3864 |
| Region | Western-Pacific |
| County | Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1991-11-08 |
| Certificate Issue Date | 2021-01-09 |
| Last Action Date | 2021-01-09 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51460051 |
| Mode S Code Hex | A66029 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N51M.
| Tail Number / N-Number | N51M |
| Manufacturer | BEECH |
| Model | E18S |
| Manufacturer's Serial Number | BA-239 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | GREEN AERO INC |
| Street | 3025 W BRISTOL RD |
| City | FLINT |
| State | MI |
| Zip Code | 48507 |
| Region | Great Lakes |
| County | Clark County |
| Certificate Issue Date | 1979-02-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1982-12-01 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N51M.
| Tail Number / N-Number | N51M |
| Manufacturer | STANDARD |
| Model | J-1 |
| Manufacturer's Serial Number | 1 M O SUB |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | GORDON B OAKLEY |
| Street | 1116 NORTH 28TH ST |
| City | KANSAS CITY |
| State | KS |
| Zip Code | 67207 |
| Region | Central |
| County | Clark County |
| Last Status | Valid Registration |
| Cancellation Date | 1933-02-11 |