| Tail Number / N-Number | N637D |
| Manufacturer | BEECH |
| Model | C35 |
| Manufacturer's Serial Number | D-2900 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | E-185-11 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Average Cruising Speed | 120 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | OHNSTAD ANDREW J |
| Other Names |
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| Street | 4400 CASS CT |
| City | WEBSTER |
| State | MN |
| Zip Code | 55088-2441 |
| Region | Great Lakes |
| County | Rice County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-02-06 |
| Certificate Issue Date | 2012-07-18 |
| Last Action Date | 2021-03-22 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52054010 |
| Mode S Code Hex | A85808 |