J80 Quantum Tuning Guide

J 80 Tuning Guide and Worksheet
TWS
(knots) Butt Headstay
From bb to deck Uppers
(Units) Lowers
(Units) Intermed
(units) Uppers turns from baseLowers turns from base Interme
Turns
From
base
Prebend Mast but
9.5 inches
from aft
bulkhead
5 12 5 6 -4 -2 -2 2.5”
617 12 9 -2 -1 -1 2.5”
8 17 12 9 -2 -1 -1 2.5
10 24 16 10 0 0 0 2”
12 9.5” 5’10 24 16 10 0 0 0 2”14 28 22 11 +2 +1 +1 2”
16 28 22 11 +2 +1 +1 2”
18 30 25 12 +4 +2 +2 2”
20 30 25 12 +4 +2 +22”
22 32 27 14 +6 +3 +3 2”
24 32 27 14 +6 +3 +3 2”
27+ 34 30 16 +8 +4 +4 2”

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J 80Tuning Guide and Worksheet
TWS
(knots) Butt
to bulkhead aft Headstay
bb to deck Uppers
(Units) Lowers
(Units) Intermed
(units) Uppers turnsfrom base Lowers turns from base Interme
Turns
From
base
Prebend Mast but
9.5 inches
from aft
bulkhead
5 12 5 6 -4 -2 -2 2.5”6 17 12 9 -2 -1 -1 2.5”
8 17 12 9 -2 .1 -1 2.5
10 24 16 10 0 0 0 2”
12 9.5” 5’10’’ 24 16 10 0 00 2”
14 28 22 11 +2 +1 +1 2”
16 28 22 11 +2 +1 +1 2”
18 30 25 12 +4 +2 +2 2”
20 30 25 12+4 +2 +2 2”
22 32 27 14 +6 +3 +3 2”
24 32 27 14 +6 +3 +3 2”
27+ 34 30 16 +8 +4 +4 2”