| Tail Number / N-Number | N877SF |
| Manufacturer | SCHLEICHER |
| Model | ASH25M |
| Year Built | 2004 |
| Manufacturer's Serial Number | 25250 |
| 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 | MID-WEST |
| Engine Model | AE50R |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 50 hp (37 kW) |
| Type of Registrant | LLC |
| Owner Name | THERMAL NAVIGATOR LLC |
| Street | 411 WALNUT ST # 13576 |
| City | GREEN COVE SPRINGS |
| State | FL |
| Zip Code | 32043-3443 |
| Region | Southern |
| County | Clay County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2004-10-08 |
| Certificate Issue Date | 2008-09-25 |
| Last Action Date | 2020-11-22 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 53010755 |
| Mode S Code Hex | AC11ED |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N877SF.
| Tail Number / N-Number | N877SF |
| Manufacturer | STEMME GMBH & CO |
| Model | S10-VT |
| Manufacturer's Serial Number | 11-027 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | MARATHON RACING INC |
| Street | 1013 CENTRE RD |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19805-1265 |
| County | Clay County |
| Country | US |
| Certificate Issue Date | 2001-05-21 |
| Last Action Date | 2001-08-03 |
| Last Status | Valid Registration |
| Cancellation Date | 2004-02-18 |
| Exported To | AUSTRALIA |