Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N415S.
| Tail Number / N-Number | N415S |
| Manufacturer | SLINGSBY |
| Model | TYPE T-50 SKYLARK 4 |
| Manufacturer's Serial Number | WKS1447 |
| 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) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WILLE CHAD C |
| Street | 1139 STATE HIGHWAY 148 |
| City | CORNING |
| State | IA |
| Zip Code | 50841-7507 |
| Country | US |
| Certificate Issue Date | 1992-08-28 |
| Last Action Date | 2007-10-16 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-11 |
| Mode S Code | 51164103 |
| Mode S Code Hex | A4E843 |