Microlighters

4. Display of marks
(1) The nationality and registration marks must be –
(a) painted on the aircraft or affixed by any other approved means ensur-
ing a similar degree of permanence;
(b) legible;
(c) displayed to the best possible advantage having regard to the con-
struction or features of the aircraft; and
(d) kept clean and visible at all times.
(2) The letters and hyphen must be formed by solid lines and must be of a
colour which contrasts clearly with the background on which they are
painted.

6. Location of marks: Heavier-than-air aircraft
(1) The marks on aeroplanes and gliders must appear –
(a) except as provided in subparagraph (4), once, on the lower left sur-
face of the wing structure; and
(b) on both sides of the fuselage between the wings and tail surfaces, or
on the upper halves of the vertical tail surfaces.
(2) If the marks are confined to the outer half of the wing structure, they
must be located on the left lower surface.
(3) The tops of the letters must be towards the leading edge of the wing
and as far as possible, be equidistant from the leading and trailing
edges of the wing.
(4) Marks on a single vertical tail surface must appear on both sides of the
tail surface.
(5) Marks on multi-vertical tail surfaces must appear on the outboard sides of
the outer surfaces.
(6) The marks on a rotorcraft (other than a rotorcraft which is a gyrocopter)
must appear –
(a) on the bottom surface of the fuselage or cabin with the top of the marks
towards the front side of the fuselage; and
(b) on both sides of the fuselage or cabin or tailboom in a prominent place
not obstructed in normal use.
(7) The marks on a rotorcraft which is a gyrocopter must appear on both sides
of a vertical surface.
(8) Marks on multi-vertical surfaces must appear on the outboard sides of the
outer surfaces.
(9) If a heavier-than-air aircraft does not possess parts corresponding to those
mentioned in the appropriate subparagraph of this paragraph, the marks
must appear in such a manner that the aircraft can be readily identified.
7. Specification of marks
(1) The nationality and registration marks must consist of capital letters in
Roman characters without ornamentation.
(2) The width of each letter (except letter “I”) and the length of the hyphen
must be two-thirds of the height of the letter.
(3) Each letter must be separated from the letter which immediately precedes
or follows it by a space equal to one-third the height of the individual let-
ters, the hyphen being regarded as a letter for this purpose.
(4) The lines forming the letters and hyphen must be solid and the thickness of
those lines must be one-sixth of the height of the letter.
8. Measurement of marks
(1) The nationality and registration marks must be formed of letters of equal
height, and must be so situated as to leave a margin of at least 50 mm
along each edge of any surface to which they are affixed.
(2) The height of the marks on lighter-than-air aircraft must not be less than
500 mm.
(3) The height of the marks on aeroplanes and gliders must be –
(a) on the wings, not less than 500 mm; and
(b) on the fuselage or equivalent structure and on the vertical surfaces, not
less than 300 mm, except that where the surface is not large enough to
accommodate full-size marks the Commissioner may approve marks
of a lesser measurement provided they are not less than 150 mm in
height and can be readily identified.
(4) The height of the marks on rotorcraft must be –
(a) on the bottom surface of the fuselage or cabin, not less than 500 mm
high; and
(b) on the sides of the fuselage or cabin, not less than 250 mm high,
except that where the surface is not large enough for full-size marks
the Commissioner may approve marks of a lesser measurement
provided they are not less than 150 mm in height and can be readily
identified.
(5) If an aeroplane or glider does not possess parts corresponding to those
mentioned in the appropriate subparagraph of this paragraph, the marks
must appear in such a manner that the aircraft can be readily identified.