| Tail Number / N-Number | N535H |
| Manufacturer | NEW STANDARD |
| Model | D-25 |
| Manufacturer's Serial Number | 137 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | HIRTLE ALAN L |
| Street | 12110 N CAMINO DEL FIERRO |
| City | ORO VALLEY |
| State | AZ |
| Zip Code | 85755-9180 |
| Region | Western-Pacific |
| County | Pima County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2009-03-24 |
| Last Action Date | 2022-09-29 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 51541657 |
| Mode S Code Hex | A6C3AF |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N535H.
| Tail Number / N-Number | N535H |
| Manufacturer | ENSTROM HELICOPTER CORP |
| Model | 280C |
| Year Built | 1976 |
| Manufacturer's Serial Number | 1030 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | HI0-360 SER |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Type of Registrant | Corporation |
| Owner Name | SHARKEYS HELICOPTERS INC |
| Street | 6 AIRPORT RD |
| City | WEST LEBANON |
| State | NH |
| Zip Code | 03784-1655 |
| County | Pima County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-02-23 |
| Certificate Issue Date | 1999-07-21 |
| Last Action Date | 2005-08-09 |
| Last Status | Triennial Aircraft Registration form was returned by the Post Office as undeliverable |
| Cancellation Date | 2005-09-21 |