Page 186 - Nicolaes Witsen & Shipbuilding in the Dutch Golden Age

Chapter Two
Plate LVIII
arm, which would be lighter, and hold as well in calm weather; but because there is also a need for weigh t, I think little of this inven tion, and leave it aside, more so because more are needed , to make it hold, tackles whichfoulupeasily:mattersofnobene ttotheship.
Some want the uke of the anchor to be half the length of the arm, and the shank to be one and a half times as long as the arm.
(119 I 15) Grapnels are anchors with four arms, of which the weight is not measured according to the size of the ship, but to the boats, for w hich they are used: and while these vary little in size, so do the grapnels.
Figure 2.224.
(117 II 40)
. ..
A small Notice, on the Anchor’s length, thickness, and weight.
131⁄2
feet long
131⁄4
13 6 123⁄4 53⁄4 121⁄2 51⁄2 12 5 113⁄4 43⁄4 111⁄2 41⁄2 111⁄4 41⁄4 11 4 103⁄4 33⁄4 101⁄2 31⁄2 101⁄4 31⁄4 10 31⁄8 93⁄4 3
9 23⁄4 8 21⁄2 7 21⁄4 6 2
5 13⁄4
(118 I 14)
On the length, thickness, and weight of the Anchors, as follows.
Weight Length 2000 131⁄2 pounds feet 1900 131⁄4 1800 13
1700 121⁄2 1600 12 1500 113⁄4 1400 111⁄2 1300 111⁄4 1200 11 1100 111⁄2 1000 10 900 91⁄2 800 9 700 81⁄2 600 8
Thickness
20 62⁄3
inches inches
19 61⁄2
62⁄3. 2000
inches thick 61⁄2
pounds of weight. 1900
1800
1700
1600 1500 1400 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100
. ..
181⁄2 6 3
18 5⁄4
173⁄4 53⁄4
171⁄4 51⁄2
1 17 5⁄4
5 153⁄4 43⁄4 15 41⁄2
14 4 13 33⁄4 12 31⁄2 11 31⁄4 10 3
161⁄2
168
(117 I 16) Anchors of our Ship.
Its bower is to be 1800 pounds heavy . The Sheet
anchor 1600 pounds. The Stream anchor 1 500. The Kedge 450 besides a ligh t kedge, and one or two grap- nels, of no speci c weight.