Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6699D.
| Tail Number / N-Number | N6699D |
| Manufacturer | PIASECKI |
| Model | HUP-3 |
| Year Built | 1954 |
| Manufacturer's Serial Number | 51 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | R-975 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 550 hp (410 kW) |
| Average Cruising Speed | 56 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | PO BOX 25082 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73125 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1967-10-06 |
| Last Action Date | 1992-01-03 |
| Last Status | Sale Reported – Canceled |
| Cancellation Date | 2013-06-13 |
| Mode S Code | 52154477 |
| Mode S Code Hex | A8D93F |