Tail CardsExplore / Ryan Aeronautical / Ryan Aeronautical ST-A SPECIAL
N18921 trading card
Legendary Ryan Aeronautical ST-A SPECIAL, one of 9 registered in the US.
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N18921 is a Ryan Aeronautical ST-A SPECIAL of unknown build year, registered in the United States. It is one of 9 of its model registered in the United States, so its card is legendary. Power comes from MENASCO SUP PIRT D4B. It seats 2. 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 |
|---|---|
| Serial | 339 |
| Engine | MENASCO SUP PIRT D4B |
| Power | 160 hp |
| Seats | 2 |
| Cruise | 92 mph |
| Weight class | Under 12,500 lb |
| Airworthy since | May 4, 1956 |
| Mode S code | A164D3 |
| 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.