Tail CardsExplore / Helio / Helio H-391B
N4139D trading card
Ultra Rare 1958 Helio H-391B, one of 16 registered in the US.
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N4139D is a Helio H-391B built in 1958, registered in the United States. It is one of 16 of its model registered in the United States, so its card is ultra rare. Power comes from LYCOMING GO-435C&D SER. It seats 4. Turn it into a custom trading card with your own photo: we print standard 2.5 by 3.5 inch cards and mail them to you.
| Class | Single-Engine, Piston |
|---|---|
| Built | 1958 |
| Serial | 088 |
| Engine | LYCOMING GO-435C&D SER |
| Power | 260 hp |
| Seats | 4 |
| Cruise | 117 mph |
| Weight class | Under 12,500 lb |
| Airworthy since | Jun 17, 1958 |
| Mode S code | A4E2DC |
| Registration | Valid |
Details as of 2026-10-23. Is this your aircraft and you would rather it not appear here? Ask us to remove it.