DIAGRAM OF METHOD OF BUOYING CHANNEL.
Two launches rigged with 30 buoys and sinkers sufficient to mark both sides of a channel 6 miles long, or one side of a channel 12 miles long.
LINE
STEAMBOAT
STEAMBOAT
DISTANCE
I CABLES.
LAUNCH WITH
BUOYS AND MOORINGS.
BUOY.
BUOY.
-2 CABLES
STEAMBOAT
DIRECTING OFFICER.
(40.4/1. 1097) F. 0. 898.
Faro Sam Lath Herties Lans YC
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LAUNCH WITH BUOYS AND
MOORINGS.
BUOY.
BUOY.
BUOY.
BUOY.
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DIAGRAM OF METHOD OF SWEEPING.
104
12 CABLES:
BUOY.
NOL. PAIR OF SWEEPING
BOATS.
100 FMS
200 YARDS.
40 Fms = 80 YARDS.
SWEEP
KITE.
KITE.
N° 2. PAIR OF SWEEPING.
BOATS.
KITE
KITE.
STEAMBOAT OF OFFICER DIRECTING SWEEPING.
No 3 PAIR OF SWEEPING BOATS.
(45.4/# 1998.) FU. 896-
Harrison&Sacs Lith. S'Martans Le C
BUOY.
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