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Beneteau First 18 SE & Seascape 18 Tuning Guide

  • Last Updated: August 16, 2021
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Beneteau First 18 SE & Seascape 18 Quick Tuning Guide

QUICK TUNING NOTES
TWS 0-4 4-8 8-12 12-16 18+
Mast Rake 8,64m
Shrouds Tension
Loos Tension Gauge 91 Model A		 34 36
Base Setting		 38-40 42-44 45-46
Shroud Turnbuckles (Full Turns) -1 0 +1 to +2 +3 to +4 +5 to +6
JIB
Cunningham Light Light/Medium Medium Medium/Tight Tight
Clew (Older option) Upper Upper Upper Upper Upper
Traveler (New option) Middle Middle Middle Middle Middle
Twist Medium Minimum Minimum/Medium Medium Medium
Cross Sheeting No No No No No
MAINSAIL
A-Frame (distance – blocks) 5-10 cm 1-3 cm 1-3 cm 3 cm Play in puffs
Outhaul (mid-foot from boom) 8-10 cm 8-10 cm 5-8 cm Tight Tight
Vang (Kicker) Snug Snug Medium Hard Hard
Cunningham No Light Light/Medium Medium/Max Max
Twist Medium Minimum Minimum Minimum/Medium Lots
Keel Position 88° – 85° 85° 85° 85° 85°
Downwind (App. Wind Angle) 85° – 100°
Speed		 90° – 130°
Speed & Soaking		 110° – 140°
Speed & Soaking		 120° – 150°
Speed & Soaking		 100° – 130°
Speed & Soaking

Seascape 18 Speed Guide

UPWIND
TWS BS VMG HEEL AWA AWS TWA TACK
6 3.9 2.9 9° 25° 9.3 42 90
8 4.7 3.5 10° 25° 12 40 86
10 5.1 4.0 12° 25° 14.4 38 84
12 5.2 4.2 15° 25° 16.5 36 80
14 5.3 4.3 16° 26° 18.5 36 75
16 5.3 4.3 16° 27° 20.6 35 75
20 5.4 4.4 18° 28° 24.6 35 75

 

DOWNWIND
TWS BS VMG HEEL AWA AWS TWA JIBE
6 3.9 3.2 5° 109° 3.5 147 85
8 4.8 4.1 5° 115° 4.7 148 80
10 5.4 4.7 6° 122° 6 150 70
12 5.8 5.0 6° 128° 7.5 150 65
14 6.2 5.4 6° 130° 9.1 150 65
16 7.6 6.1 7° 118° 11 143 75
20 12.1 8.8 10° 100° 14 137 80

Class Experts

Stjepan Marinovic

Dugopolje, Croatia
stjepan.marinovic@northsails.com

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