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Ship Day Signal Shapes
Ship Day Signal Shapes

Ship Day Signal Shapes

Marine day signal shapes compliant with COLREGs 1972 and IMO standards. These foldable black shape signals (ball, cone, double cone, cylinder, diamond) are used on board vessels to clearly indicate status: anchored, aground, towing, fishing, constrained by draft, or restricted maneuverability, during daylight hours for collision avoidance and maritime safety.
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Products Description

 

product-800-800

Day signal shapes are mandatory devices for commercial ships, workboats, fishing vessels, yachts, and offshore platforms. Constructed from black net or fabric with steel wire reinforcement, they deliver clear visibility in day light conditions in maritime environment. Available in different shapes, they support quick rigging, compact stowage, and regulatory compliance for navigation.

 

Product Parameter (specification)

 

Item

Technical Specification
Ball

Diameter ≥0.6m; lightweight collapsible fabric and net version
Cone

Base diameter ≥0.6m, height = diameter; point up / point down
Double Cone

Base diameter ≥0.6m, height = 2xdiameter point to point
Cylinder

Diameter ≥0.6m, height = 2×diameter
Diamond

Two cones base-to-base; diagonal ≥0.6m
Mounting Spacing

Vertical gap ≥1.5m between shapes
Materials

UV-resistant net (mesh), marine black canvas
Color

Solid high-visibility black

 

Product feature

1.Regulatory Compliance: Fully meets COLREGs 1972 requirements
2. Marine Durability: Waterproof, saltwater-resistant, UV-stabilized, rot-proof, and tear resistant
3. High Visibility: Black shapes for clear daylight recognition at distance
4.Easy Deployment: Quick rigging with reinforced attachment points
5.Storage Friendly: Foldable/collapsible design minimizes storage space
6.Stable Profile: Wind efficient shape reduces sail effect and maintains correct orientation
7.Long Service Life: Industrial stitching / rigid steel wire structure for repeated use
product-800-800
product-800-800
 

Product application

1. Commercial Vessels: Cargo ships, tankers, bulkers, container vessels
2.Workboats: Tugs, barges, dredgers, pilot boats, supply vessels
3.Fishing Fleet: Trawlers, seiners, longliners, fishing boats
4. Recreational & Yacht: Sailing yachts, motor cruisers (≥12m LOA)
5.Offshore & Ports: Rigs, terminals, floating cranes, mooring installations

 

Key Scenarios

 

product-800-800

At anchor: 1 ball

Aground: 3 balls vertical

Motor sailing: 1 cone (point down)

Towing/pushing: 1 diamond

Fishing: Cylinder or cone combinations

Constrained by draft: Ball–diamond–ball vertical

Restricted maneuverability: Cylinder

FAQ

Q: Are these day signals approved for international waters?

A: Yes, fully compliant with COLREGs 1972 and accepted globally. No 3rd party certificates are required.

Q: What size do I need for my vessel?

A: ≥20m LOA use standard ≥0.6m shapes; <20m use proportionally reduced sizes (not available with us, as we supply for commercial vessels mainly.

Q: Can I buy individual shapes instead of a full kit?

A: Yes, balls, cones, cylinders, and diamonds are sold separately.

Q: How do I store collapsible shapes?

A: Fold flat and store in the supplied bag; minimal locker space required.

Q: How long do they last in marine environments?

A: 3–5 years with normal use; UV and saltwater resistant for offshore conditions.

Documents

 

pdf.pngTECHNICAL-DATA-SHEET-DAY-SIGNAL-SHAPES-NET-TYPE-EMF-MARINE

 

 

 

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