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Sailboat specifications and datasheets

Mumm 30

The Mumm 30 is a 30’11” multiple crew monohull sailboat designed by Bruce Farr. She was built by Carroll Marine (United States) and made of sandwich E-glass / epoxy. The production started in 1995 .

The Mumm 30 belongs to the Tour de France à la Voile class. The Mumm 30 has also been marketed as Farr 30.

Carroll Marine Mumm 30 Carroll Marine Mumm 30 sailplanCarroll Marine Mumm 30 layoutCarroll Marine Mumm 30 layoutCarroll Marine Mumm 30 sailingCarroll Marine Mumm 30 accommodations
Mumm 30's   Main Features
Model Mumm 30
Type of hull Monohull
Shipyard

Designer Bruce Farr
Class Tour de France à la Voile
Construction Hull:
sandwich E-glass / epoxy
Deck:
sandwich balsa / E-glass / epoxy
First built hull 1995
Appendages Keel :
L-shaped keel (with bulb)
Helm 1 tiller
Rudder 1 spade rudder
Unsinkable No
Trailerable No
EC certification B
Standard public price (indicative only) N/A
Mumm 30's   Main dimensions
Hull length 30’ 11”
Waterline length 27’ 7”
Beam (width) 10’ 1”
Draft 6’ 11”
Mast height from DWL 44’ 4”
Light displacement 4548 lbs
Ballast weight 2094 lbs
Ballast type Cast iron fin with lead bulb
Mumm 30's   Rig and sails
Upwind sail area 603 sq.ft
Downwind sail area 1432 sq.ft
Mainsail area 377 sq.ft
Genoa area 226 sq.ft
Symetric spinnaker area 1055 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast in Carbon fiber and boom in Aluminum
Standing rigging Single-strand (ROD) discontinuous
Number of levels of spreaders 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 38’ 4”
JiFore triangle base (from mast foot to bottom of forestay) 10’ 11”
PiMainsail hoist measurement (from tack to head) 40’ 7”
EiMainsail foot measurement (from tack to clew) 14’ 7”
Mumm 30's   Performances
Crew 6-8 (<580kg)
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.
34.56
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.
82.07
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.
99
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.
46 %
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.
7.03 knots
Mumm 30's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 9 HP
Fuel type Diesel
Fuel tank capacity 9.2 gal
Mumm 30's   Accommodation
Berth(s) 2
Fresh water tank capacity 14.5 gal
Maximum headroom 3’ 8”

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