| Tail Number / N-Number | N91810 |
| Manufacturer | SCHWEIZER |
| Model | SGU-1-19 |
| Year Built | 1946 |
| 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 | 67 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ARMSTRONG ROBERT K |
| Street | 23753 MCMULLEN HWY SW |
| City | RAWLINGS |
| State | MD |
| Zip Code | 21557 |
| Region | Eastern |
| County | Allegany County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-03-09 |
| Certificate Issue Date | 1993-02-18 |
| Last Action Date | 2022-07-18 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 53133367 |
| Mode S Code Hex | ACB6F7 |