EAGES 02 - The Hoverwing Technology Bridge between WIG and ACV – Hanno Fischer

INTRODUCTION

Hanno Fischer sadly left us in 2024, and leaves an impressive legacy of innovative planes and flying ships.
In 2001, he and his team had just certified the FS8 (now Airfish 8) with GL, and were developing the Hoverwing technology which would lead to the development of the Hoverwing 20 and WSH 500.
His conference was a masterclass of technical expertise mixed with a good sense of humour, and a real talent for explaining.

ABSTRACT

Wingships (WIG, Wing In Ground) utilise water as runways to reach their lift-off speed, which is determined by the wing loading. High Wing Loadings are desirable for high cruising speeds with inherent height and Longitudinal stability.
To build up the necessary dynamic air pressure under the wings, they need roughly 3 times more power to overcome the hydrodynamic hump-drag compared to the drag during ground effect flight. So it is necessary to develop suitable devices as Lift-off-aids in order to reduce the recommended power. With support of the German Ministry for R&D (BMB & F) Fischer-Flugmechanik (FF) has developed the ”Hoverwing - Technology” in order to further reduce the necessary lift-off power. The principle of this technology, for which FF has patent rights, is the building up of static air pressure between the catamaran float. After lift-off the dynamic pressure will replace the static pressure and the craft operates as a WIG with high lift to drag ratios.
FF is developing the ”Hoverwing 80”, with the target to transport 80 passengers at 100 kts. Some test results with a scaled down two Seater will be demonstrated by video extracts.

VIDEO

PAPER

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