Steadying sail - Boat Design Net A steadying sail may be more effective higher up, but it is also more affected by wind shifts, as well It shouldn't take a lot of sail area to do the job and rough estimates will probably work fine for what you want it for Anywhere from 30 sqrft to 50 sqrft should have enough effect to satisfy your needs
Trawler-- gt;Mast Boom. . . Sizing | Boat Design Net The mast gives you a lightening cone of protection, a handy mount for a derrick crane and a nice steadying sail I just checked on a stability calc for a similar vessel The mast was removed and it was around 300kg (660 lb) the centre of gravity of the vessel was consequently lowered 3 inches
Steading Sail for Trawler - Boat Design Net Recently there was considerable discussion of the steadying sail for small trawler yachts on the Trawlers and Trawlering list Some folks did testing with the sail up and down, and all who have steadying sails say they help damp out rolling at all times, even if there is little wind These sails are small, approximately 120-150 square feet
Motor Sailers by Philip Rhodes John Alden | Boat Design Net The dimensions of the earlier boat are 45 feet by 42 feet by 11 feet 3 inches by 5 feet With her narrower beam, deeper draft, and single screw, Puig’s boat seems to be based more on the idea of an old-style displacement powerboat than is Virginia Reel Her sails are merely for steadying and trolling
Steadying sail | Page 2 | Boat Design Net Thank you, she draws a bit more than two and a half feet My intention wasn't to turn it into a sailboat but to have more of a "get home" sail ability as well as a steadying sail I'm currently putting together a riding sail, she wants to lay side to which while uncomfortable it also makes handling the fishing gear problematic
Motor whaleboat sail - Boat Design Net A fairly reasonable question, I still think you should look at the selection of motor sailers in that size range, select those that have relatively small sail area, that don't have much ballast, if any Even look at ones that have basically just a steadying sail Should be a few around in that class
Roll Stabilization - Boat Design Net The bilge keels are more effective than small steadying sails but less effective that a large sail In addition the inertia of the mast and rigging also help In addition they allow the hull to stand straight on a flatbed trailer, which could solve a parking problem and make it easier to ferry the truck and trailer
Hydroplaning Rowboat | Page 3 | Boat Design Net My concern with the approach is a foil system is real "peaky" EG very good in a small speed range Decavators pop up foil was an ingenious solution to the issue but not well suited for a 24 hour craft My preference was an optimized displacement hull stabilized with a steadying foil skimmer, an approach I've had some experience with
Whaleboat sail - Boat Design Net I have to modify that a bit In Dave Gerr's book "The Nature of Boats" he states that 50 sq ft of sail will generate 1hp at Beaufort force 4 (11-16kts) so if indeed that works it would appear that perhaps 2-3kts is feasible under sail alone based on the 1hp per 500 pounds of displacement for an SL ratio of 1 34