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Sailboat specifications and datasheets

RM 800

The RM 800 is a 26’2” coastal monohull sailboat designed by Marc Lombard. She was built by Fora Marine (France) and made of plywood with fiberglass / epoxy. This sailboat was produced between 1992 and 2003 with 24 hulls completed.

The RM 800 belongs to the RM range.

Fora Marine RM 800 Fora Marine RM 800 sailplanFora Marine RM 800 layoutFora Marine RM 800 sailingFora Marine RM 800 accommodationsFora Marine RM 800 detail
RM 800's   Main Features
Model RM 800
Type of hull Monohull
Shipyard
Designer Marc Lombard
Range RM
Construction Hull and deck:
Plywood with fiberglass / epoxy
First built hull 1992
Last built hull 2003
Number of hulls built 24
Appendages Twin keel :
Twin asymetric fin with bulb
Helm 1 tiller
Rudder 1 rudder on skeg
Unsinkable No
Trailerable No
EC certification C
Standard public price (indicative only) N/A
RM 800's   Main dimensions
Length overall 26’ 5”
Hull length 26’ 2”
Waterline length 25’ 7”
Beam (width) 11’ 2”
Waterline beam (width) 8’ 8”
Draft 3’ 11”
Mast height from DWL 40’ 8”
Light displacement 3968 lbs
Maximum displacement 5445 lbs
Ballast weight 2105 lbs
Ballast type Cast iron
French customs tonnage 8.40 Tx
RM 800's   Rig and sails
Upwind sail area 506 sq.ft
Downwind sail area 899 sq.ft
Mainsail area 307 sq.ft
Genoa area 199 sq.ft
Jib area 151 sq.ft
Asymetric spinnaker area 592 sq.ft
Rigging type Cutter Marconi fractional
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 Swept-back (Bergström)
RM 800's   Performances
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.
31.76
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.
56.43
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.
107
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.
53 %
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.
6.78 knots
RM 800's   Auxiliary engine
Engine(s) 1
Engine type Outboard or inboard engine
Engine (min/max) 8 HP / 10 HP
Fuel type Gas
RM 800's   Accommodation
Cabin(s) 1
Berth(s) 4
Head(s) 1
Fresh water tank capacity 52.8 gal
Chart table 2’ 6” x 2’
Maximum headroom 6’
Galley headroom 6’
Head headroom 4’ 6”
RM 800's   Saloon
Maximum headroom 6’
Saloon table length 3’ 10”
Saloon table width (min/max) 2’ 5” / 3’
RM 800's   Fore cabin
Maximum headroom 2’ 10”
Berth length 7’ 2”
Berth width (head/feet) 6’ 5”
2’
RM 800's   Aft cabin
Maximum headroom 2’ 11”
Berth length 6’ 10”
Berth width 4’ 11”

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