| Tail Number / N-Number | N9712 |
| Manufacturer | MISCHLER-BENSEN |
| Model | B-8M |
| Year Built | 1969 |
| Manufacturer's Serial Number | 100531 |
| Aircraft Type | Rotorcraft |
| 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 | PORSCHE |
| Engine Model | 678/4 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 75 hp (56 kW) |
| Average Cruising Speed | 45 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MISCHLER HEINZ B |
| Street | RT 2 |
| City | OREGON |
| State | WI |
| Zip Code | 53575 |
| Region | Great Lakes |
| County | Dane County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Certificate Issue Date | 1969-07-01 |
| Last Action Date | 1977-01-14 |
| Status | Certificate of Registration has been revoked |
| Mode S Code | 53304772 |
| Mode S Code Hex | AD89FA |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N9712.
| Tail Number / N-Number | N9712 |
| Manufacturer | IRELAND AIRCRAFT CO |
| Model | N-2 |
| Manufacturer's Serial Number | 19 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not 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 | LARKIN HENRY J |
| Street | 926 DEDHAM ST |
| City | NEWTON |
| State | MA |
| Zip Code | 01002 |
| Region | New England |
| County | Dane County |
| Last Status | Valid Registration |
| Cancellation Date | 1932-07-01 |