A28 Warning Sign – Low-Flying Aircraft, 70 cm, Class I
- Warning sign A28 “Low-flying aircraft”, to SR 1848-1:2024.
- 70 cm triangle in 1 mm galvanised steel sheet, 2 kg.
- Class I retroreflective sheeting, 7-year service life.
- Fixings included: clamps for Ø48 mm posts and bolts with nuts.
Complementary products
General features
| SR 1848-1 code | A28 |
|---|---|
| Name in the standard | Low-flying aircraft |
| Type | Warning road sign |
| Shape and colours | Equilateral triangle, red border, white background, black symbol |
| Size | 70 cm side (normal format) |
| Red border | 60 mm |
| Material | Galvanised steel sheet, 1 mm |
| Construction | Rounded corners, pressed edges, no sharp edges |
| Painting | Electrostatic |
| Retroreflective sheeting | Class I (RA1) |
| Retroreflection (white, 0.2°/5°) | 70 cd/(lx·m²) |
| Sheeting service life | 7 years |
| Weight | 2 kg |
| Fixings included | Clamps and bolts with nuts |
| Post diameter | Ø48 mm (Ø60 mm on request) |
| Standards | SR EN 12899-1:2007, SR 1848-1:2024, SR 1848-2:2011, SR 1848-3:2011 |
| Height | 70 cm |
Product description
A28 Warning Sign – Low-Flying Aircraft, 70 cm, Class I
The A28 marks a stretch of road that aircraft cross at low altitude near airports. The sudden noise and the shadow of the plane can startle drivers.
Where it goes, under SR 1848-1:2024
It goes on the approach to a section of road crossed by a flight path where aircraft fly over the road at low altitude.
How far before the hazard: in a built-up area, 50 m at most; outside it, between 100 and 250 m; on a motorway or expressway, between 500 and 1,000 m, with the P4 panel underneath. When site conditions call for a longer distance, the P4 is used anywhere.
Technical data
- equilateral triangle with a 70 cm side (normal format, SR 1848-2), 60 mm red border, white background, black symbol;
- 1 mm galvanised steel sheet, with rounded corners and pressed edges, no sharp edges;
- electrostatically painted;
- class I retroreflective sheeting (RA1), with a 7-year service life;
- weight: 2 kg;
- fixings included: clamps for Ø48 mm posts and bolts with nuts;
- compliant with SR EN 12899-1:2007, SR 1848-1:2024, SR 1848-2:2011 and SR 1848-3:2011.
Mounting
The sign comes with clamps for Ø48 mm posts and bolts with nuts. Clamps for Ø60 mm posts are available on request. It goes on the right-hand side of the road, with its bottom edge 1.50–2.50 m up and its inner edge 0.50–2.0 m from the platform; on roads with two or more lanes each way, repeating it on the left is recommended. No more than three signs go on the same post.
The 70 cm triangle is the normal format in SR 1848-2, meant for county and local roads, streets and private roads open to public traffic. National roads call for large 90 cm signs, and motorways for very large 120 cm ones.
? Frequently asked questions
Where does the A28 “Low-flying aircraft” sign go?
It goes on the approach to a section of road crossed by a flight path where aircraft fly over the road at low altitude.
Is the 70 cm triangle right for a county road?
Yes. 70 cm is the normal format in SR 1848-2, required on county and local roads, streets and private roads open to public traffic. National roads call for 90 cm and motorways for 120 cm.
How high is it mounted and which fixings come with it?
The bottom edge goes 1.50–2.50 m above the road or kerb, and the inner edge 0.50–2.0 m from the road platform. The pack holds clamps for Ø48 mm posts and bolts with nuts; clamps for Ø60 mm posts are available on request.
How long does the reflective sheeting last?
The sheeting is class I (RA1), with a 7-year service life. Under SR 1848-2, during that time retroreflection stays at no less than 80% of the initial minimum value and the sheeting stays bonded over at least 95% of the surface.
Ordering and delivery
Can I order as a private individual?
Yes. You order directly on the site, as an individual or a company, and pay by card or cash on delivery.
Do I get an invoice?
Yes. Every order comes with a tax invoice, issued to an individual or a company.
Can I buy through SEAP / SICAP?
Yes. Public institutions find us in SICAP as S.C. ATTO REGAL S.R.L. Our company details are on the Purchase through SEAP / SICAP page.
How long does delivery take?
We deliver by courier within 24-48 hours.
Can I return the product?
Yes. As a private individual you can return the product within 14 days of receiving it, as the law provides, and you get your money back within 14 days of telling us. Return shipping is paid by the customer. The full terms are on the Return policy page.
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A28 Warning Sign – Low-Flying Aircraft, 70 cm, Class I (A28)
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In road safety since 1998
Atto Trafic supplies complete road signage and safety equipment — signs, traffic signs, markings, parking barriers, speed bumps, mirrors, bollards and accessories.
- Durable products, compliant with STAS and SR EN
- ISO 9001 / 14001 / 27001 / 20671 certified
- Constant stock, delivery within 24-48 hours
- Support for municipalities, contractors, private car parks
