Types of Anchor:
Two main factors determine the holding power of anchors in mud and sandy bottoms:
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The fluke area.
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The penetration of the flukes, i.e. the area of fluke which can be made to penetrate the soil.
Penetration is determined by several factors:
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The fluke/shank angle.
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The sharpness of shape of the flukes.
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The displacement of the flukes below the shank.
Anchors with elbowed shank such as Bruce, CQR, Hook and Flook allow for deeper penetration.
In sand and harder soil, it is the shank that restricts penetration. It is the surface area of the flukes that will be in the soil before the shank makes contact with the bottom surface that determines the holding power.
With spade or hinged fluke anchors, such as the Danforth, Stevin, Brittany, those with the hinge point closest to the centre of the gravity give the best penetration, with the hinge point right at the crown, the anchor will trip and tend to roll up on its points.
In soft mud where the shank may penetrate below the surface, it is usually the chain that restricts further penetration. In such circumstances, a steel wire allows deeper penetration and results in a higher holding power.
Below are anchors to fit many purposes and bottoms. Both galvanised and in stainless steel.
Plough Anchors
TPP-005S 5 $150.00 TPP-005C 5 $25.00 TPP-007S 7 $210.00 TPP-007C 7 $40.00 TPP-009S 9 $270.00 TPP-009C 9 $45.00 TPP-012S 12 $360.00 TPP-012C 12 $60.00 TPP-016S 16 $480.00 TPP-016C 16 $80.00 TPP-020S 20 $600.00 TPP-020C 20 $100.00 TPP-022S 22 $650.00 TPP-022C 22 $110.00 TPP-027S 27 $800.00 TPP-027C 27 $130.00 TPP-034S 34 $1,000.00 TPP-034C 34 $160.00 TPP-050S 50 $1,500.00 TPP-050C 50 $260.00
Danforth anchors
Stainless steel 316-Mirror polishing Weight(kg) price Carbon Steel-Hot Galvanized Weight(kg) price TPF-003S 3.6 $100.00 TPF-003C 3.6 $20.00 TPF-005S 5.5 $145.00 TPF-005C 5.5 $25.00 TPF-009S 9 $240.00 TPF-009C 9 $40.00 TPF-016S 16 $430.00 TPF-016C 16 $70.00 TPF-027S 27 $700.00 TPF-027C 27 $120.00 TPF-050S 50 $1,300.00 TPF-050C 50 $260.00 TPF-0100S 100 $2,800.00 TPF-0100C 100 $575.00 TPF-0130S 130 $3,800.00 TPF-0130C 130 $700.00
Bruce anchors
|
Stainless steel 316-Mirror polished |
Weight(kg) |
price |
Carbon Steel-Hot Galvanized |
Weight (kg) |
price |
|||||
|
TPB-003S |
3 |
$90.00 |
TPB-003C |
3 |
$20.00 |
|||||
|
TPB-005S |
5 |
$150.00 |
TPB-005C |
5 |
$25.00 |
|||||
|
TPB-007S |
7.5 |
$220.00 |
TPB-007C |
7.5 |
$40.00 |
|||||
|
TPB-010S |
10 |
$300.00 |
TPB-010C |
10 |
$50.00 |
|||||
|
TPB-015S |
15 |
$450.00 |
TPB-015C |
15 |
$80.00 |
|||||
|
TPB-020S |
20 |
$600.00 |
TPB-020C |
20 |
$100.00 |
|||||
|
TPB-025S |
25 |
$750.00 |
TPB-025C |
25 |
$120.00 |
|||||
|
TPB-030S |
30 |
$900.00 |
TPB-030C |
30 |
$150.00 |
|||||
|
TPB-050S |
50 |
$1,500.00 |
TPB-050C |
50 |
$240.00 |
|||||
Grapnels
|
Stainless steel 316-Mirror polished |
Weight(kg) |
price |
Carbon Steel-Hot Galvanized |
Weight (kg) |
price |
|||||
|
TPFL-003S |
3.2 |
$100.00 |
TPFL-003C |
3.2 |
$20.00 |
|||||
|
TPFL-004S |
4 |
$120.00 |
TPFL-004C |
4 |
$25.00 |
|||||
|
TPFL-006S |
6 |
$180.00 |
TPFL-006C |
6 |
$30.00 |
|||||
|
TPFL-008S |
8 |
$240.00 |
TPFL-008C |
8 |
$40.00 |
|||||
|
TPFL-010S |
10 |
$300.00 |
TPFL-010C |
10 |
$50.00 |
|||||
|
TPFL-012S |
12 |
$360.00 |
TPFL-012C |
12 |
$60.00 |
|||||
|
TPFL-015S |
15 |
$450.00 |
TPFL-015C |
15 |
$80.00 |
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