Warning Sign/Low Flying Aircraft
| Low Flying Aircraft | |||
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| TSRGD ref : | 558, 558.1 | ||
| From : | 1970s? | ||
| To : | present | ||
Pre-Worboys sign
There doesn't appear to have been a pre-Worboys warning of low flying aircraft.
Modern sign
There are two variants of the 'low flying aircraft' sign. The original is a generic sign picturing a plan-view silhouette of a plane, with pointed nose, swept back wings and smaller tail. More recently an alternative sign has been created picturing a helicopter, complete with landing skis, rotor blades and tail rotor. This sign is much rarer and only used in locations where helicopters regularly land and take off away from proper airfields.
The aeroplane symbol sign is widely used where roads pass not just the major international airports, but also military air bases, private airfields and glider clubs. Many of these smaller airfields may only see traffic on one or two days a week, making the signs useful to drivers who occasionally use the road as well as those unfamiliar with the area.
Irish sign
The equivalent Irish sign is coded W 165 in the Department of Transport's Traffic Sign Manual.
