| Main features | A27 Fin keel | A27 Swing keel | A27 Twin keel |
Model | A27 | A27 | A27 |
Version | Fin keel | Swing keel | Twin keel |
Hull type | Monohull | Monohull | Monohull |
Category | Cruiser-racer sailboat | Cruiser-racer sailboat | Cruiser-racer sailboat |
Sailboat builder | Archambault | Archambault | Archambault |
Sailboat designer | |||
Country | France | France | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester (vacuum infusion) - Deck: Sandwich PVC fiberglass polyester (vacuum infusion) | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester (vacuum infusion) - Deck: Sandwich PVC fiberglass polyester (vacuum infusion) | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester (vacuum infusion) - Deck: Sandwich PVC fiberglass polyester (vacuum infusion) |
First built hull | 2012 | 2012 | 2012 |
Last built hull | Discontinued | Discontinued | Discontinued |
Appendages | Keel : fin with bulb | Lifting keel : swing keel | Twin keel : twin asymmetric fin with bulb |
Helm | Single tiller | Single tiller | Single tiller |
Rudder | Single spade rudder | Twin spade rudders | Single spade rudder |
Unsinkable | No | No | No |
Trailerable | No | No | No |
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m | B | B | B |
| Main dimensions | A27 Fin keel | A27 Swing keel | A27 Twin keel |
Hull length | 27’ 5”8.35 m | 27’ 5”8.35 m | 27’ 5”8.35 m |
Waterline length | 25’7.61 m | 25’7.61 m | 25’7.61 m |
Beam (width) | 9’ 10”2.98 m | 9’ 10”2.98 m | 9’ 10”2.98 m |
Draft | 5’ 8”1.75 m | 6’ 11”2.1 m | 3’ 10”1.15 m |
Draft when appendages up | 3’ 1”0.95 m | ||
Light displacement (MLC) | 4740 lb2150 kg | 4740 lb2150 kg | 4740 lb2150 kg |
Ballast weight | 1825 lb828 kg | 1825 lb828 kg | 1825 lb828 kg |
Ballast type | Cast iron | Cast iron | Cast iron |
| Rig and sails | A27 Fin keel | A27 Swing keel | A27 Twin keel |
Upwind sail area | 447 ft²41.5 m² | 447 ft²41.5 m² | 447 ft²41.5 m² |
Downwind sail area | 1044 ft²97 m² | 1044 ft²97 m² | 1044 ft²97 m² |
Mainsail area | 258 ft²24 m² | 258 ft²24 m² | 258 ft²24 m² |
Genoa area | 188 ft²17.5 m² | 188 ft²17.5 m² | 188 ft²17.5 m² |
Symmetric spinnaker area | 786 ft²73 m² | 786 ft²73 m² | 786 ft²73 m² |
Asymmetric spinnaker area | 786 ft²73 m² | 786 ft²73 m² | 786 ft²73 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 35’ 5”10.79 m | 35’ 5”10.79 m | 35’ 5”10.79 m |
J iFore triangle base (from mast foot to bottom of forestay) | 10’ 10”3.3 m | 10’ 10”3.3 m | 10’ 10”3.3 m |
P iMainsail hoist measurement (from tack to head) | 35’ 10”10.9 m | 35’ 10”10.9 m | 35’ 10”10.9 m |
E iMainsail foot measurement (from tack to clew) | 12’ 7”3.85 m | 12’ 7”3.85 m | 12’ 7”3.85 m |
Rigging type | Sloop Marconi fractional | Sloop Marconi fractional | Sloop Marconi fractional |
Mast configuration | Deck stepped mast | Deck stepped mast | Deck stepped mast |
Rotating spars | No | No | No |
Number of levels of spreaders | 2 | 2 | 2 |
Spreaders angle | Swept-back | Swept-back | Swept-back |
Spars construction | Aluminum spars | Aluminum spars | Aluminum spars |
| Performances | A27 Fin keel | A27 Swing keel | A27 Twin keel |
HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats. | 23.0 | 23.0 | 23.0 |
Upwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat. | 268 ft²/T24.91 m²/T | 268 ft²/T24.91 m²/T | 268 ft²/T24.91 m²/T |
Downwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. | 627 ft²/T58.23 m²/T | 627 ft²/T58.23 m²/T | 627 ft²/T58.23 m²/T |
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat. | 138 | 138 | 138 |
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.The higher the ballast ratio is, the greater is the stability. | 39 % | 39 % | 39 % |
Critical hull speed iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34. | 6.70 knots | 6.70 knots | 6.70 knots |
| Auxiliary engine | A27 Fin keel | A27 Swing keel | A27 Twin keel |
Engine(s) | 1 outboard or inboard engine | 1 outboard or inboard engine | 1 outboard or inboard engine |
Engine(s) power | 13 HP | 13 HP | 13 HP |
Fuel type | Gas | Gas | Gas |
Fuel tank capacity | 7.9 gal30 liters | 7.9 gal30 liters | 7.9 gal30 liters |
| Accommodations and layout | A27 Fin keel | A27 Swing keel | A27 Twin keel |
Cockpit | Open aft cockpit | Open aft cockpit | Open aft cockpit |
Berth(s) | 4 | 4 | 4 |
Head(s) | 1 | 1 | 1 |
Freshwater tank capacity | 13.2 gal50 liters | 13.2 gal50 liters | 13.2 gal50 liters |
Maximum headroom | 5’ 2”1.6 m | 5’ 2”1.6 m | 5’ 2”1.6 m |