This fine example of a HP-18 was built by "Silent Soarers, Inc." The wings structures were approved for cover on February 20, 1975. Two years later the sailplane was completed and a Special Airworthiness Certificate in the Experimental Category, with limitations was issued June 22, 1977. Robert (Bob) Leonard (Cessna test pilot) celebrated the 1977 Fourth of July by flying N99XX's first flight. The logbook indicates that a second Special Airworthiness Certificate, without limitations, was issued June 18, 1981.
| Make | Schreder |
|---|---|
| Model | HP-18 |
| Marketplace Status | Sold |
| Marketplace Currency | USD |
| Type | Pure Sailplane |
| Seats | 1 |
| FAI Class | None |
| Canopy Cover | No |
| Full Covers | No |
| Oxygen | No |
| Ground Handling | Tow bar, wing wheel |
| CG Release | No |
| Nose Release | Yes |
| Trailer Condition Rating |
 |
| Trailer | Yes |
| Altimeter | Standard |
| Vario | Borgelt |
| Air Speed | Standard |
| Aircraft Exterior |
|
| Aircraft Interior |
|
| Total Time | 300 |
| Year | 1977 |
| Certificate Type | Experimental |
| S/N | HP-18-11 |
| Registration | N99XX |
| Flarm | No |
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SOLD ON: 2018-11-18 22:34:06