(b) In a sailing vessel of less than
20 meters in length
the lights prescribed in paragraph (a) of this Rule may be combined
in one
lantern carried at or near the top of the mast where it can
best be seen.
(c) A sailing vessel underway
may, in addition to the lights prescribed in paragraph (a) of this
Rule, exhibit at or near the top of the mast, where they can best
be seen,
two all-round lights in a vertical line, the upper being red
and the lower Green, but these lights shall not be exhibited in
conjunction with the combined lantern permitted by paragraph (b)
of this Rule.
(d)
A sailing
vessel of less than 7 meters in length shall, if practicable,
exhibit the lights prescribed in paragraph (a) or (b) of this
Rule, but if she does not, she shall have ready at hand an electric
torch or lighted lantern showing a white light which shall be
exhibited in sufficient time to prevent collision.
A vessel
under oars may exhibit the lights prescribed in this rule
for sailing vessels, but if she does not, she shall have ready
at hand an electric torch or lighted lantern showing a white
light which shall be exhibited in sufficient time to prevent
collision.
(e) A vessel proceeding under sail
when also being
propelled by machinery shall exhibit forward where it can best
be seen a conical shape, apex downwards. A vessel of less
than 12 meters in length is not required to exhibit this shape,
but may do so. [Inld]
