| Tail Number / N-Number | N27WP |
| Manufacturer | WILLIAM M OPRENDEK |
| Model | PITTS S1S |
| Year Built | 2019 |
| Manufacturer's Serial Number | S1SS-4 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | SUPERIOR |
| Engine Model | IO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | HARVAN DENNIS E |
| Street | 146 MOUNT GROVE RD |
| City | CALIFON |
| State | NJ |
| Zip Code | 07830-4214 |
| Region | Eastern |
| County | Hunterdon County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2020-05-13 |
| Certificate Issue Date | 2020-05-06 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 50523045 |
| Mode S Code Hex | A2A625 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N27WP.
| Tail Number / N-Number | N27WP |
| Manufacturer | DENNIS HARVAN |
| Model | WOLF PITTS S1-SX |
| Manufacturer's Serial Number | S1-SX-001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HARVAN DENNIS E |
| Street | 146 MOUNT GROVE RD |
| City | CALIFON |
| State | NJ |
| Zip Code | 07830-4214 |
| County | Hunterdon County |
| Country | US |
| Certificate Issue Date | 2019-12-16 |
| Last Action Date | 2019-12-16 |
| Last Status | Valid Registration |
| Cancellation Date | 2020-04-09 |