HD-4
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HD-4 or Hydrodome number 4 was an early research hydrofoil watercraft developed by the scientist Alexander Graham Bell. It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate ne
HD-4 at Baddeck, Nova Scotia, in 1919
HD-4 hydrofoil at the Alexander Graham Bell museum
Hydrofoil
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A hydrofoil is a lifting surface, or foil, that operates in water. It is similar in appearance and purpose to aerofoils used by airplanes. Boats that use hydrofoil technology are also simply termed hy
HD-4
…HD-4 or Hydrodome number 4 was an early research hydrofoil watercraft developed by the scientist Alexander Graham Bell. It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate near Baddeck…
Forlanini's hydrofoil over Lake Maggiore, 1906
Meteor
Raketa