| Tail Number / N-Number | N80SD |
| Manufacturer | AMERICAN CHAMPION AIRCRAFT |
| Model | 7ECA |
| Year Built | 2005 |
| Manufacturer's Serial Number | 1397-2007 |
| 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 | O-235-K2C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 118 hp (88 kW) |
| Type of Registrant | Government |
| Owner Name | SOUTH DAKOTA STATE UNIVERSITY ELECTRICAL ENG DEPT |
| Street | ENGINEERING RESEARCH SECS 309 BOX 2222 |
| City | BROOKINGS |
| State | SD |
| Zip Code | 57007-0001 |
| Region | Great Lakes |
| County | Brookings County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2012-05-02 |
| Certificate Issue Date | 2007-05-05 |
| Last Action Date | 2020-05-26 |
| Expiration Date | 2027-09-30 |
| Status | Valid Registration |
| Mode S Code | 52560430 |
| Mode S Code Hex | AAE118 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N80SD.
| Tail Number / N-Number | N80SD |
| Manufacturer | BELL |
| Model | 47G-3B-1 |
| Manufacturer's Serial Number | 3679 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 78 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HELFENBERGER DANIEL E |
| Street | 18306 59TH DR NE |
| City | ARLINGTON |
| State | WA |
| Zip Code | 98223-7852 |
| County | Brookings County |
| Country | US |
| Certificate Issue Date | 1997-08-18 |
| Last Action Date | 2000-08-15 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2000-09-20 |