Where are our buoys?
3000 Class 2 Plastic Navigation Buoy MK1
Our second 3m plastic navigation buoy is the Class 2 Mk1. Designed for deep channel marking, the buoy won the 2006/7 Trinity House Lighthouse Service trials, based on design, construction and capability to offer an extremely stable lightweight platform.
As with the other 3000mm buoys, it uses four individual float collars to provide buoyancy of 4200kg, offering exception floatation properties and ease of repair to a single float if damage should be sustained.
Based on a tower design, this buoy features day mark wings removing the need for a topmark, although non lateral buoy are fitted with an aluminium cage to support topmarks as necessary.
The design of the tower is modular based, featuring individual box sections bolted together & reinforced using 4 x 16mm SS tie rods, providing space for up to four 200A/h batteries, eight 55W solar panels and an Echomax 305 radar reflector giving a peak RCS of up to 74m2.
| Key Dimensions | |
|---|---|
| Diameter mm | 3000 |
| Overall height mm (typical) | 4620 |
| Overall weight Kgs | 2000 |
| Focal plane (FP) in mm (typical) | 3900 |
| Reserve buoyancy weight Kgs | 4200 |
| Waterline above datum mm (typical) | 400 |
| Chain size mm (typical) | 32/38 |
| Sinker weight in water Kgs (typical) | 5000 |
| Depth guide | 10-50 Mtrs |
Typical chain length 2 to 3 times depth in most circumstances.
Steel Core
Designed for long life and manufactured from grade 43A mild steel, complete with two lifting eyes and two mooring eyes attached to the steel skirt. Day mark tower and day mark wings attach to core by easy access fasteners. Finished in hot
dipped galvanised after manufacture, to BSE ISO 1461-1999.
Float Collars
Four part rotationally moulded specially formulated extra high UV stabilised polyethylene. Foam filled with marine grade safety approved foam. These collars can be replaced either individually or as a set if damaged through a collision. Replacement can be carried out without removing the buoy from its mooring. Minor damage can be repaired on site using a hot air gun and polyethylene welding rods.
Day Mark Tower
Three common box cube sections flanged and bolted together. Manufactured from rotationally moulded with specially formulated extra high UV stabilised polyethylene. The top unit houses the Echomax 305 radar reflector giving a peak RCS of up to 74m2 reflection. Up to eight solar panels can be mounted to the specially indented box sides.
Day Mark Wings
Four rotationally moulded and specially formulated extra high UV stabilised polyethylene, are sleeved and bolted to each individual box section and secured at the base within a steel channel.
Battery Box
Resin coated aluminium and steel box secured to the top plate of the steel core and housed within the lower cube. Two x 200 A/h batteries can be located within the box. A lockable hatch allows easy access to batteries.
Lantern
Any suitable preferred manufacturer compatible lantern can be fitted.
Access
A fixed ladder is supplied.
Optional Extras
Two coats ZINGA on steel core substantially increases service life. LD marks into daymark. Racon and/or wave generator.
Moorings
To achieve a moored height of 400mm above datum at high tide, the floated mooring weight should be approximately 25% of the reserve buoyancy.
