Astus 20.1
Encyclopedia
The Astus 20.1, built by Astusboats
, is a 20ft (6.1m) trimaran
dinghy aimed at family day sailing, though its cabin offers basic cruising capability. Its multihull
design offers speed and stability.
The floats are mounted on telescopic tubes and can be extended or folded on shore or on the water, making it possible to use narrow split ways or monohull marina berths.
Cockpit:
The cockpit of the Astus 20.1 is large enough to accommodate 7 adults. The cockpit floor is flat and free from centreboard well or any other gear. The cockpit coamings offer good protection for children.
Spars:
The Astus 20.1 mast has one pair of spreaders. The main sail attaches to a boom.
Sails:
The Astus 20.1 is equipped with a dacron furling jib and dacron mainsail as standard. The mainsail is fully battened and has one reef as standard, and a second reef can be specified as a factory option. A Pentex jib and mainsail can be specified for enhanced performance.
A furling gennaker and asymmetrical spinnaker are available as options.
Trailer:
The trailer offered as an option with the Astus 20.1 has a split beam and tilting rollers and is fitted with a winch to facilitate launching and recovering.
Trailer Sailers are boats small and light enough to be towed by ordinary cars. Their width (beam) is constrained by road regulations. In Europe, to be towable on the road the width of the boat and trailer must not exceed 2.55m. The maximum weight is determined by the towing capacity of the towing vehicle and by the type of driving license.
Folding trimarans are particularly well suited as trailer sailers because their narrow width with folded floats makes them towable on the road whilst their wide beam with floats extended makes them stable and safe on the water. Furthermore, the absence of ballast makes them considerably lighter than a keelboat of similar size (375kg for the Astus 20.1 compared to 1000kg for a 20ft keelboat). Heavier boats require a stronger and heavier road trailer, making the towing weight even greater.
Astusboats
Astusboats is a French trimaran manufacturer based in Brech.The trimarans produced by this shipyard are designed by Stéphan Vallet, and have the characteristic of being trailerable due to the telescopic tubes in which the floats are mounted .-Product line:The current product line is:*Astus 14.1...
, is a 20ft (6.1m) trimaran
Trimaran
A trimaran is a multihulled boat consisting of a main hull and two smaller outrigger hulls , attached to the main hull with lateral struts...
dinghy aimed at family day sailing, though its cabin offers basic cruising capability. Its multihull
Multihull
A multihull is a ship, vessel, craft or boat with more than one hull.-Description:Multihulls include: Proas, which have two differently shaped or sized hulls with lateral symmetry; catamarans, which have two hulls with longitudinal symmetry; and trimarans, which have a main hull in the center and...
design offers speed and stability.
Construction
The Astus 20.1 is built in glass reinforced polyester (GRP) covered with white gelcoat. The cockpit floor has a honeycomb core, offering rigidity and durability.The floats are mounted on telescopic tubes and can be extended or folded on shore or on the water, making it possible to use narrow split ways or monohull marina berths.
Cockpit:
The cockpit of the Astus 20.1 is large enough to accommodate 7 adults. The cockpit floor is flat and free from centreboard well or any other gear. The cockpit coamings offer good protection for children.
Spars:
The Astus 20.1 mast has one pair of spreaders. The main sail attaches to a boom.
Sails:
The Astus 20.1 is equipped with a dacron furling jib and dacron mainsail as standard. The mainsail is fully battened and has one reef as standard, and a second reef can be specified as a factory option. A Pentex jib and mainsail can be specified for enhanced performance.
A furling gennaker and asymmetrical spinnaker are available as options.
Trailer:
The trailer offered as an option with the Astus 20.1 has a split beam and tilting rollers and is fitted with a winch to facilitate launching and recovering.
Trailer Sailers are boats small and light enough to be towed by ordinary cars. Their width (beam) is constrained by road regulations. In Europe, to be towable on the road the width of the boat and trailer must not exceed 2.55m. The maximum weight is determined by the towing capacity of the towing vehicle and by the type of driving license.
Folding trimarans are particularly well suited as trailer sailers because their narrow width with folded floats makes them towable on the road whilst their wide beam with floats extended makes them stable and safe on the water. Furthermore, the absence of ballast makes them considerably lighter than a keelboat of similar size (375kg for the Astus 20.1 compared to 1000kg for a 20ft keelboat). Heavier boats require a stronger and heavier road trailer, making the towing weight even greater.
Pros
- Small cabin with good headroom
- Ample storage capacity in cabin and cockpit
- Possibility for portable chemical toilet
- Vast cockpit with coamings offers good protection
Specifications
| Length overall | 6.13 m |
| Beam | 3.88 m (floats extended) 2.53 m (floats folded) |
| Weight | 375 kg |
| Draught | 0.30 m/1.10 m (swing centreboard and rudder) |
| Sail area | Main: 16.5 m² Furling jib: 6.5 m² Furling gennaker: 20 m² Asymmetrical spinnaker: 24 m² |
| Max outboard size | 6 hp |
| Design Category | C: 5 people D: 7 people |
| Cabin | 1 double berth 1.10 m x 2.20 m |
| Designer | Jean-Hubert Pommois |
See also
- AstusboatsAstusboatsAstusboats is a French trimaran manufacturer based in Brech.The trimarans produced by this shipyard are designed by Stéphan Vallet, and have the characteristic of being trailerable due to the telescopic tubes in which the floats are mounted .-Product line:The current product line is:*Astus 14.1...
- Astus 14.1Astus 14.1The Astus 14.1 is a 14ft trimaran dinghy aimed at recreational sailing and racing. The trimaran design is unusual for a boat of this size but is said to combine the features of other types of design: pointing ability of a monohull dinghy , reaching ability of a catamaran , and planing ability of...
- Astus 16.1Astus 16.1The Astus 16.1 is a 16ft trimaran dinghy aimed at family day sailing. Its design has been optimised for simplicity of use: the traditional centreboard on the main hull has been replaced by foils built in each float .-Construction:...
- MultihullMultihullA multihull is a ship, vessel, craft or boat with more than one hull.-Description:Multihulls include: Proas, which have two differently shaped or sized hulls with lateral symmetry; catamarans, which have two hulls with longitudinal symmetry; and trimarans, which have a main hull in the center and...
- TrimaranTrimaranA trimaran is a multihulled boat consisting of a main hull and two smaller outrigger hulls , attached to the main hull with lateral struts...