Detailed sailboat specifications and datasheets since 2015
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Mumm 30

Sailboat specifications

The Mumm 30 is a 30’11” (9.43m) one design sailboat designed by Farr Yacht Design (United States). She was built since 1995 (and now discontinued) by Carroll Marine (United States), Ovington Boats (United Kingdom) and McDell Marine (New Zealand).

The Mumm 30 has also been marketed as Farr 30.

Mumm 30's main features

Model
Mumm 30
Hull type
Monohull
Category
One design sailboat
Sailboat builder
Sailboat designer
Sailboat collection
Country
United States
Construction
Fiberglass reinforced epoxy:
- Hull: Sandwich E-glass epoxy
- Deck: Sandwich balsa E-glass epoxy
First built hull
1995
Last built hull
Discontinued
Appendages
Keel : L-shaped keel (with bulb)
Helm
Single tiller
Rudder
Single spade rudder
Unsinkable
No
Trailerable
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
Standard public price ex. VAT (indicative only)
N/A

Mumm 30's main dimensions

Hull length
30’ 11”9.43 m
Waterline length
27’ 7”8.4 m
Beam (width)
10’ 1”3.07 m
Draft
6’ 11”2.1 m
Mast height from DWL
44’ 4”13.5 m
Light displacement (MLC)
4548 lb2063 kg
Ballast weight
2094 lb950 kg
Ballast type
Cast iron fin with lead bulb

Mumm 30's rig and sails

Upwind sail area
603 ft²56 m²
Downwind sail area
1432 ft²133 m²
Mainsail area
377 ft²35 m²
Genoa area
226 ft²21 m²
Symmetric spinnaker area
1055 ft²98 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
38’ 4”11.67 m
J
 iFore triangle base (from mast foot to bottom of forestay)
10’ 11”3.32 m
P
 iMainsail hoist measurement (from tack to head)
40’ 7”12.36 m
E
 iMainsail foot measurement (from tack to clew)
14’ 7”4.44 m
Rigging type
Sloop Marconi 9/10
Mast configuration
Keel stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Carbon fiber mast and aluminum boom
Standing rigging
Single-strand (ROD) discontinuous

Mumm 30's performances

Crew
6-8 (<580kg)
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.
372 ft²/T34.56 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.
883 ft²/T82.07 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.
99
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.
46 %
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.
7.03 knots

Mumm 30's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
9 HP
Fuel type
Diesel
Fuel tank capacity
9.2 gal35 liters

Mumm 30's accommodations and layout

Cockpit
Open aft cockpit
Berth(s) (min./max.)
2 / 4
Freshwater tank capacity
14.5 gal55 liters
Maximum headroom
3’ 8”1.13 m
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