Heldeberg Design
1 aircraft on the U.S. register. The most recent registration was May 6, 2025.
Models
MARATHON1
MARATHON
States
Wisconsin1
Registrations by year
Aircraft newest first
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N5613K | Heldeberg Design MARATHON |
Powered parachute | Individual owner Wisconsin |
Experimental | 2025-05-06 | Valid |