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Sailboat specifications and datasheets

Aquila shoal draft

The Aquila, here in "shoal draft" version, is a 27’2” monohull sailboat designed by Philippe Harlé. She was built by Jeanneau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1975 and 1984 with 1048 hulls completed.

The Aquila is as well listed, on Boat-Specs.com, in version Regatta.

Jeanneau Aquila Jeanneau Aquila sailplanJeanneau Aquila layoutJeanneau Aquila sailingJeanneau Aquila sailingJeanneau Aquila accommodations
Aquila's   Main Features
Model Aquila
Version Shoal draft
Type of hull Monohull
Category Cruiser-racer sailboat
Shipyard
Designer Philippe Harlé
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1975
Last built hull 1984
Number of hulls built 1048
Appendages Keel :
Fin without bulb
Helm 1 tiller
Rudder 1 semi-spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
French navigation category 2
Standard public price ex. VAT (indicative only) N/A
Aquila's   Main dimensions
Length overall 28’ 6”
Hull length 27’ 2”
Waterline length 23’ 4”
Beam (width) 9’ 10”
Waterline beam (width) 8’
Draft 4’ 4”
Mast height from DWL 37’ 1”
Fore freeboard 3’ 5”
Mid-ship freeboard 3’ 2”
Light displacement 5732 lbs
Maximum displacement 7716 lbs
Ballast weight 2094 lbs
Ballast type Cast iron
French customs tonnage 6.64 Tx
Aquila's   Rig and sails
Upwind sail area 435 sq.ft
Downwind sail area 767 sq.ft
Mainsail area 150 sq.ft
Genoa area 285 sq.ft
Solent area 244 sq.ft
Jib area 136 sq.ft
Stormjib area 51 sq.ft
Symetric spinnaker area 618 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 0 °
PiMainsail hoist measurement (from tack to head) 28’ 1”
EiMainsail foot measurement (from tack to clew) 9’ 6”
Aquila's   Performances
HN (French rating) 11.0
IOR rating 20.4
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
21.37
Downwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
37.71
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
206
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
37 %
Wetted surface 180 sq.ft
Maximum transverse section 11 sq.ft
Hull speediAs 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.
6.47 knots
Aquila's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 8 HP / 12 HP
Fuel type Diesel
Fuel tank capacity 7.1 gal
Aquila's   Accommodation
Cabin(s) 1
Berth(s) (min/max) 4 / 6
Head(s) 1
Fresh water tank capacity 23.8 gal
Fridge/ice-box capacity 25.1 gal
Maximum headroom 6’
Head headroom 5’ 8”
Aquila's   Saloon
Maximum headroom 5’ 8”
Aquila's   Fore cabin
Maximum headroom 5’ 5”

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