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SURPRISE 25 (ARCHAMBAULT)
Built by Archambault Boats (FRA)
• Designed by Michel Joubert
General Information
Hull Type:
Fin w/spade rudder
Rigging Type:
Fractional Sloop
Construction:
FG w/balsa core deck
First Built:
1977
Number Built:
1550
Dimensions
Length Overall (LOA):
7.65 m
Length Waterline (LWL):
6.60 m
Beam:
2.48 m
Draft (Max):
1.60 m
Weight & Ballast
Displacement:
1,250 kg
Ballast:
500 kg
Sail Plan
Foresail Area:
7.36 m²
Mainsail Area:
14.86 m²
Total Sail Area (calculated):
22.22 m²
Sail Area (reported):
27.50 m²
I (Fore Triangle Height):
8.05 m
J (Fore Triangle Base):
1.83 m
P (Mainsail Hoist):
9.00 m
E (Boom Length):
3.30 m
Engine & Systems
Performance Ratios
Hull Speed:
6.23 knots
SA/Displacement (Calculated):
19.15
SA/Displacement (Reported):
24.15
Ballast/Disp Ratio:
39.99%
Displacement/Length:
121.24
Comfort Ratio:
11.49
Capsize Screening:
2.33
S-Number:
4.22
Notes
Twin keel version also available.