Navigation Aids
Polyethylene navigation buoys for harbour approaches, channels and marine hazard marking. Explore model drawings, dimensions and catalogue references for project selection.
SYSTEM CORE
Polyethylene navigation buoys are used in harbour approaches, channels and marine marking projects. Model selection considers the marking purpose, lantern and equipment requirements, and mooring conditions.
APPLICATION SCENARIOS
SCENARIO 01
Direction buoy at harbour entrances, channel edges and shallow water hazards, marked to IALA colours. NB1250 and NB1750 are the standard selections for sheltered waters and in-harbour navigation; low freeboard, small mooring load, fast deployment.
SCENARIO 02
Risk point, zone boundary and fish farm perimeter marking on open-sea routes. The larger NB2000, NB2200, NB2500 and NB3000 models offer 4.0–4.9 m focal plane height and 2,000–5,000 kg maximum mooring load for exposed waters.
SCENARIO 03
Solar LED flashing lantern at the buoy top complements the IALA day mark with night visibility. Radar enhancer, AIS AtoN and RACON options provide integration with electronic navigation systems (ECDIS, AIS) — for modern harbours and traffic separation schemes.
CATALOGUE TABLE
Catalogue reference values; not an engineering approval.
Catalogue dimensions of the six navigation buoy models; each column is one model.
| Specification | NB1250 | NB1750 | NB2000 | NB2200 | NB2500 | NB3000 |
|---|---|---|---|---|---|---|
| Height (mm) | 2,600 | 3,960 | 8,059 | 4,836 | 9,979 | 10,284 |
| Width (mm) | 1,250 | 1,750 | 2,000 | 2,200 | 2,500 | 3,000 |
| Focal plane height (mm) | 2,300 | 2,500 | 4,013 | 4,071 | 4,748 | 4,888 |
| Total float volume (L) | 500 | 1,650 | 3,180 | 1,537 | 5,228 | 8,000 |
| Nominal freeboard (mm) | 315 | 440 | 650 | 600 | 765 | 880 |
| Minimum freeboard (mm) | 180 | 200 | 565 | 530 | 715 | 845 |
| Nominal draft (mm) | 135 | 725 | 2,910 | 905 | 3,845 | 3,760 |
| Submergence (kg/cm) | 11.25 | 24 | 31.4 | 38 | 49 | 70.6 |
| Maximum mooring load (kg) | 495 | 600 | 5,000 | 2,000 | 5,000 | 5,000 |
| Visual area (m²) | 1.62 | 1.75 | 3.3 | 5.61 | 4.98 | 7.16 |
| Wall thickness (mm) | 8 | 12 | 10 | 18 | 15 | 15 |
TECHNICAL
Technical elevations and catalogue values are presented together above for each model. Lanterns, day marks and mooring arrangements are specified for the project.
DOCUMENTS
| Document | Type | Language | Revision | Pages |
|---|---|---|---|---|
| ASAKUA Navigation Buoys brochure ↗ | Brochure | English | 05 | 2 |
| ASAKUA Navigation Buoys datasheet ↗ | Datasheet | English | 05 | 1 |
| ASAKUA Navigation Buoys brochure ↗ | Brochure | Turkish | 05 | 2 |
| ASAKUA Navigation Buoys datasheet ↗ | Datasheet | Turkish | 05 | 1 |
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