2.4.1 Visual means of detection for survival craft
should make it possible:
-
.1 for an aircraft at an altitude of up to 3,000
m to detect the survival craft at a range of at least 10 miles; and
-
.2 for a ship to detect the survival craft in
a seaway in clear conditions at a range of at least 2 miles.
2.4.2 Visual means of detection for persons in
the water should make it possible for a ship to detect the person
in a seaway: