AIRCRAFT PROGRAM
| Lift type | Fixed wing | ||
| Construction type | Factory-built, Kit-built | ||
| Control type | Piloted | ||
| Engine type | Piston | ||
| Application | Sport, Ultralight | ||
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Single-seat kit built, ultralight sportplane, powered by a converted Volkswagen four-stroke engine.
| Variant | Launch/First flight | Production end | |
| Hummel Hummelbird | 1982 / 1980 | Kitbuilt aircraft, derived from a modified Watson GW-1 Windwagon. | |
| Hummel Ultracruiser | 2000 / 2000 | Heavier development of HummelBird, offered as a kit or ready-to-fly. | |
| Hummel H5 | 2008 / 2003 | Variant designed for larger pilots, formerly known as Ultracruiser Plus. |
