Hi Lars I think the weight of 6.0 hulls is close to 5.80, and perhaps lighter : they are longer, but slimmer and a little less freeboard. Wen...
Hi, Lars I have just improved my Strike 20 by using Nacra 6.0 hulls instead old Nacra 5.80 . She Looks nose down at mooring, but looks perfect...
Large hull has a little less wetted area and less friction drag, as minimum wetted area corresponds to half circle.
I strongly agree, I have built several wood/glass/epoxy multihulls since 1981 and never had any problem ! I was told that polyester resin osmosis...
In the technical data sheet they say the nominal ratio by weight for 105 resin / 205 or 206 hardener is 5.19/1, but you can use 4.83 to 6.2/1...
Circa 1983, I remember having seen Guy Delage entering Funambule at the Moulin Blanc Harbor in Brest, with plenty of wind under sails alone and...
Gary is an outstanding builder/designer. Unfortunately, I have found only building, mooring and very light weather sailing records of his designs !
Rudders are designed to resist high angle of attack loads, load ascociated to 4° to 6° drift angle is not really a problem, and if you balance the...
Induced drag Di is proportional to squared lift of each board total lift L : one board, Di=kL² two identical boards providing half of the total...
Hi, IMHO, looks your approach is reasonable. You should ask to a sailmaker the appropriate sag for a headsail with 18 m long luff. Sag is a design...
Sorry , it looks the boat is no more announced on Craiglist ! Perhaps she has been sold ? I would be interested if anyone have news about the boat.
The 30 hp yamaha was on a 4 m semi rigid !
I have done some race and cruised a 38' catamaran, Ollier designed, built by multiplast / Vannes France. It was the first F40 measured and was...
I think the difficulty to reaccelerate noted by Martin Fisher has little to do with induced drag. Imho the main reason is the boat with...
A piece of Art !
