Air-Only Low Profile ventilators on Hallberg-Rassy 55
The Hallberg-Rassy 55 premiered at the world’s largest boatshow, boot Düsseldorf in Germany 19-27 January 2013.
There are some pictures of Hallberg-Rassy 55 on winter trials
How does it work?
Air-Only ventilator, which is a core device for all models, let air in and keep water out via the use of spherical floats.
Operating principle: soft PVC balls float within the vent as soon as there is water on deck, along vertical guides, and form a watertight seal. As soon as the water subsides, the balls descend, letting air in again. Illustrated on pictures below.
Operating principle: soft PVC balls float within the vent as soon as there is water on deck, along vertical guides, and form a watertight seal. As soon as the water subsides, the balls descend, letting air in again. Illustrated on pictures below.
Air-Only deck ventilators have been awarded the Special Mention DAME 2003 in the category of Deck equipment, sails and rigging.
