| Tail Number / N-Number | N311SH |
| Manufacturer | BELL |
| Model | OH-58A |
| Year Built | 1972 |
| Manufacturer's Serial Number | 71-20860 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | 250-C20C |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 420 hp (313 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | MAINE HELICOPTERS INC |
| Street | PO BOX 110 |
| City | WHITEFIELD |
| State | ME |
| Zip Code | 04353-0110 |
| Region | New England |
| County | Lincoln County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2013-05-30 |
| Certificate Issue Date | 2011-06-28 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 50646040 |
| Mode S Code Hex | A34C20 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N311SH.
| Tail Number / N-Number | N311SH |
| Manufacturer | DEHAVILLAND |
| Model | DHC-1 CHIPMUNK 22 |
| Year Built | 1951 |
| Manufacturer's Serial Number | HA/MM/4-81 |
| Aircraft Type | Fixed wing single engine |
| 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 | LYCOMING |
| Engine Model | 0-540 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 250 hp (187 kW) |
| Type of Registrant | Corporation |
| Owner Name | HIGH VOLTAGE AIRSHOWS INC |
| Street | 3511 SILVERSIDE RD STE 105 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19810-4902 |
| County | Lincoln County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-03-03 |
| Certificate Issue Date | 2000-02-09 |
| Last Action Date | 2003-02-18 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2003-02-21 |