| Tail Number / N-Number | N4638M |
| Manufacturer | PIPER |
| Model | PA-11 |
| Year Built | 1947 |
| Manufacturer's Serial Number | 11-140 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KAYE RICHARD S |
| Street | 1149 LOOMIS TRAIL RD |
| City | LYNDEN |
| State | WA |
| Zip Code | 98264-9777 |
| Region | Northwest Mountain |
| County | Whatcom County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1957-07-10 |
| Certificate Issue Date | 1979-04-11 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 51324074 |
| Mode S Code Hex | A5A83C |