D R X. The channel wales, parallel to the main wale.
S U S. The sheer rail, parallel to the wales.
T t. The rudder.
A t F. The rake of the stern.
V W V. The waist-rail.
P i i. The drift-rails abaft; and i a, the drift-rails forward.
T U C. The water-line.
X X. The rails of the head.
Y. The knee of the head, or cutwater.
Z Z. The cheeks of the head.