submerged-foil hydrofoil

submerged-foil hydrofoil

[səb′mərjd ′fȯil ′hī·drə‚fȯil]
(naval architecture)
A hydrofoil craft with foils which are completely submerged and whose angle of attack is controlled by an autopilot and sensors to maintain the height and attitude of the craft.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.