| 释义 |
ˈfairwater
[f. fair v. 3 + water n.]
A structure making the lines of a vessel suitable for its easy passage through water.
1910D. W. Taylor Speed & Power of Ships I. ii. 125 About all that can be done for the propeller hub is to fit a conical fair-water behind it. Model experiments show that a long fair-water, say of length about twice the diameter of the propeller hub, offers materially less resistance than a short fair-water of length say about one-half the diameter of the propeller hub. 1927G. Bradford Gloss. Sea Terms 62/1 Fair water cone, the conical cap covering the after side of the hole of a propeller which takes the end of the tail shaft. 1948R. de Kerchove Internat. Maritime Dict. 250/2 Fairwater, 1. A conical-shaped cap fitted over the locknut at the afterend of the propeller shaft to prevent an abrupt change in the streamlines. Also called fairwater cone, propeller cap, fairwater cap. 2. Any casting or plate affixed to the hull with a view to maintaining smooth streamline flow of water. Plating fitted about the ends of shaft tubes or struts to prevent a sharp change in the direction of streamlines. 1956Jane's Fighting Ships 1956–7 226 Transferred to Italy by U.S.A. after conversion to guppy-schnorkel [submarine]. Modified structure and fairwater. |