A Fast Offshore Cruiser - Appendices.
A.1. - Hull plating and frame spacing.
A.1. - Hull plating and frame spacing.
|
|
A Fast Offshore Cruiser - Appendices. A.1. - Hull plating and frame spacing. |
|
s = frame spacing (mm)
L = rated length (m)
s a = 0.5*modulus of rupture (N/mm2)
Bottom plating basic head multiplying factor.
, d = Tc
F=1.8, 0.25H from keel
F=1.2, 0.05Lwl & 0.35Lwl aft of FP
F=0.7, at aft end of Loa
Topsides plating basic head and multiplying factor.
, fl =
local freeboard
F=1.08, 0.05Lwl & 0.35Lwl aft of FP
F=0.63, at aft end of Loa
for Western Red Cedar
, fl =1.4m,
this is the worse case \ used for whole boat.
|
Plating position |
Factor & head |
Max spacing (mm) |
Chosen spacing (mm) |
|||
|---|---|---|---|---|---|---|
|
t = 25 |
t = 33 |
Plate t |
Spacing |
|||
|
Keel |
1.8h |
524 |
691 |
33 |
400 |
|
|
Bottom |
1.2h |
641 |
847 |
33 |
800 |
|
|
Aft bottom |
0.7h |
840 |
1109 |
33 |
900 & 1100 |
|
|
Topsides |
1.08(h-d-fl) |
847 |
1117 |
25 |
800 |
|
|
Aft topsides |
0.63(h-d-fl) |
1108 |
1463 |
25 |
900 & 1100 |
|
| Goto Appendix(A1:A2:A3:A4:A5:A6:A7:A8:B1:B2:B3:C1:C2:D1:D2:D3:D4:D5:E1:E2:E3) | Top of the page. |