AMC1 29.811(d) Emergency exit marking
EMERGENCY EXIT SIGNS
Emergency exit signs should consist of a consistent type throughout the rotorcraft. They may be letter-based or symbolic, as outlined below.
Letter-based emergency exit signs should use letters with a height to stroke width ratio of not more than 7:1 nor less than 6:1.
Symbolic emergency exit signs should be white and green in compliance with European Standard (EN) ISO 7010:2012 âGraphical symbols â Safety colours and safety signs â Registered safety signsâ.
The green area of the sign should constitute at least half of the total area of the sign.
In the area determination of an emergency exit sign, no part of the sign outside of the white background (text signs) or green element (symbolic signs) â for instance, a surrounding contrasting border â should be included.
Minimum size
For each emergency exit sign required by CSÂ 29.811(c), a sign using English letters of at least 25 mm (1 inch) height, or a white symbolic element (i.e. that part incorporating the green ârunning manâ) of at least 40 mm (1.6 inches) height, with an overall area of at least 64.5 cm2 (10 square inches) should be acceptable provided that the centrelines of the forward most and rearward most emergency exits are no more than 6 m (19.8 feet) apart.
Examples of acceptable designs of symbolic exit signs
Direction of running man
There may be a reason to choose a particular movement direction of the ârunning manâ; for instance, where a sign required by CSÂ 29.811(c) is placed to the left or right of the emergency exit. The ârunning manâ should not suggest movement away from the emergency exit.
[Amdt No: 29/11]