| Tail Number / N-Number | N129MM |
| Manufacturer | AEROVODOCHODY |
| Model | L-29 DELFIN |
| Year Built | 1968 |
| Manufacturer's Serial Number | 892790 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P & W |
| Engine Model | JT12A-6 |
| Engine Type | Turbo-jet |
| Number of Engines | 1 engine |
| Thrust | 3,000 pounds-force (13.3 kN) |
| Type of Registrant | LLC |
| Owner Name | HGA LLC |
| Street | 2063 PABCO RD |
| City | HENDERSON |
| State | NV |
| Zip Code | 89011-2501 |
| Region | Western-Pacific |
| County | Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2008-02-29 |
| Certificate Issue Date | 2019-06-06 |
| Last Action Date | 2022-01-25 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 50073100 |
| Mode S Code Hex | A07640 |