aeroSKIFF 14

Features of the aeroSKIFF 14:
TARGET SPECIFICATIONS / aeroSKIFF 14 / based on 250lb. max crew-drawings in post 15 based on 220lb. max crew.
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1) LOA 14'8" Beam 12'(drawings in post 15 show 10' beam-beam may be increased to reduce buoyancy pod size and to help make crew weight range wider)
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2) Target ready to fly boat weight: 120 lb.s
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3) Max Crew 250lb.s ; target minimum crew 120lb.
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4) Flying weight: 370lb.s
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5) SA 143 sq.ft. square topped, camber induced , main only, unstayed mast ,extended luff, modified wishbone, midboom sheeting.
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6) Standard main foil area 1.68 sq.ft.
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7) Mainfoil loading @ 80% 176lb. sq. ft.
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8) Rudder foil area 50% mainfoil area.
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9) SA/mainfoil area: 85sq. ft. per sq.ft. foil area.
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10) "Wing Loading"( all up weight divided by SA) =2.58lb.s per sq.ft. SA.
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11) Draft ,off foils; foils extended= 3.75'-variable.
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Features
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1) Forward third of sail comes completely down to the deck; the boom is a modified version of a wishbone boom with a cross member just forward of mid length that takes the mainsheet. The sheet is led to a traveller on the forward beam allowing the sheet to come from forward. A twin vang set up will be used should a vang be required.
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2) Foils retract to facilitate beach launching.
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3) Sliding single bench seat; slides easily and contains ballast compartment for one design class weight equalization system.Motion control system that prevents runaway seat in adverse situations.
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4) Standard foils optimized for low speed takeoff; optional tip extentions; optional high speed foils.
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5) Buoyancy pods approx 1.56 cu' per side; larger optional pods available for training.(see approx 3 cu. ft. pods illustrated in the sketches in post #15)
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6)Rudder: unique design slides up and down in daggerboard style slot; stepped rudder flap designed to allow variable rudder area between non foiling and foiling; Target is to have rudder throw and sensitivity the same on or off
foils.
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7) Double ended hull facilitates earlist 0 to takeoff; facillitates pitch change to allow early takeoff though foil system may not require this.
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8) Trampoline each side with heel cutouts allowing quick, secure seat movement.
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9) Foils designed to take loads imposed by jumping which can be initiated by twisting hiking stick(s).System bypasses wand but still utilizes forward /rear foil interconnect.
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10) Variable main foil "gear shift" angle of incidence adjustment. From "set it and forget it" to fine tuning main foil drag.
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11) Exceptionally wide crew weight range ; one design cass races wil be sailed at the 250 lb.s crew weight. Speed runs will be able to be made with lower crew weight as long as RM is addressed.
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12) Wand controlled altitude with height adjustment. Set it and forget it or tweak it. Unique averaging wand system to improve choppy water response including fore and aft foil interconnect and wand bypass for smoother flying and better jumps.
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Jumping is an important part of this foiler design because we think it will add to the value of the boat and to the fun of flying this foiler.