| Tail Number / N-Number | N7640 |
| Manufacturer | SCHWEIZER |
| Model | SGS 1-34 |
| Year Built | 1970 |
| Manufacturer's Serial Number | 20 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 58 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SILENT KNIGHTS INC |
| Street | 406 NW SKYLINE DR |
| City | ANKENY |
| State | IA |
| Zip Code | 50023-8700 |
| Region | Central |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1970-03-20 |
| Certificate Issue Date | 2021-05-13 |
| Last Action Date | 2021-05-13 |
| Expiration Date | 2028-05-31 |
| Status | Valid Registration |
| Mode S Code | 52451274 |
| Mode S Code Hex | AA52BC |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N7640.
| Tail Number / N-Number | N7640 |
| Manufacturer | STANDARD |
| Model | J-1 |
| Year Built | 1917 |
| Manufacturer's Serial Number | MAC-21 |
| 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 | Partnership |
| Owner Name | HENDERSON ROY M AND HILSTROM HOLLIS R |
| Street | GENERAL DELIVERY |
| City | SCRANTON |
| State | IA |
| Zip Code | 51462 |
| Region | Central |
| County | Polk County |
| Certificate Issue Date | 1928-09-21 |
| Last Status | Valid Registration |
| Cancellation Date | 1930-07-23 |