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Warning Helicopters Road Sign 558.1
Where the helicopters road sign diagram 558.1 is used, helicopters should be expected to be landing or taking off in the near vicinity. The use of this warning sign should prepare the road user for the sudden noise or appearance of a helicopter.
The use of ‘For’ and a distance is recommended as the positioning of the sign should be sited further back than the standard distance, otherwise, a helicopter could be virtually overhead before the driver sees a sign which defeats its purpose.
This sign is part of our post-mounted range and comes standard at 600mm and is available up to 1500mm. If the size you need isn’t an option on our website then feel free to contact our customer service team who can quote you.

Superior Quality Sign Face

Superior quality prismatic reflective sign face ensure that the sign stands the test of time.
Durable Composite Base

Made from a composite material which is an aluminium covering over plastic, it is light and ultra strong.
Designed to be Post Mounted

Each Part of the sign comes with two rails allowing the fitment of two clips per face for secure mounting.
Need Help Finding The Right Sign Face?
Our sales team are ready and waiting to take your call on 01905 794 875 to help you get the right post mounted sign for the job. We also have temporary warning signs as well as road marking signs available, if you do not need a post mounted item.
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Specifications
Certifications | |
Conforms | Class 2 Reflectivity |
Diagram Reference | 558.1 |
AccuChecked | ✔ (The specification has been independently checked for accuracy) |
AccuPhoto | ✔ (The photos are of the actual product type that you are ordering) |
Dimensions | |
Thickness | 3.6mm (face), 20mm (including rails) |
Material | |
Type | R2/RA2 reflective material on composite backing |
Colour | Grey backing, white, red and black signage |
Miscellaneous | |
Customisation | Alternative wording and sizes available. Please call for details. |
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