| Tail Number / N-Number | N31EH |
| Manufacturer | VANS AIRCRAFT INC |
| Model | RV-12 |
| Manufacturer's Serial Number | 120912 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | Individual |
| Owner Name | HALYBURTON ELLIOT T |
| Street | 6256 E BIG LAKE LOOP |
| City | THREE LAKES |
| State | WI |
| Zip Code | 54562-9514 |
| Region | Great Lakes |
| County | Oneida County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2017-10-02 |
| Certificate Issue Date | 2017-04-21 |
| Last Action Date | 2022-11-14 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 50642344 |
| Mode S Code Hex | A344E4 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N31EH.
| Tail Number / N-Number | N31EH |
| Manufacturer | AEROSPATIALE |
| Model | AS 365 N2 DAUPHIN |
| Manufacturer's Serial Number | 6407 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 14 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | DAUPHIN AIR INC TRUSTEE |
| Street | 1220 N MARKET ST STE 808 |
| City | WILMINGTON |
| State | DE |
| Zip Code | 19801-2595 |
| County | Oneida County |
| Country | US |
| Certificate Issue Date | 2005-07-27 |
| Last Action Date | 2005-07-27 |
| Last Status | Valid Registration |
| Cancellation Date | 2005-12-22 |
| Exported To | UNITED KINGDOM |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N31EH.
| Tail Number / N-Number | N31EH |
| Manufacturer | SUKHOI |
| Model | SU-31 |
| Manufacturer's Serial Number | 0105 |
| 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 | Corporation |
| Owner Name | MIDWEST AEROBATICS INC |
| Street | 16411 LIMERICK LN |
| City | MINNETONKA |
| State | MN |
| Zip Code | 55345-1842 |
| County | Oneida County |
| Country | US |
| Certificate Issue Date | 1996-03-25 |
| Last Action Date | 1996-03-25 |
| Last Status | Valid Registration |
| Cancellation Date | 1997-05-28 |
| Exported To | BRAZIL |