This is a pretty cool thread! It challenges your thinking skills, and creativity!
As long as we're considering alll the possibilities, practical and impractical, I'll add the following (since things are slow this morning):
The Apreture or Iris Door- this is like the iris or aperature in a camera that is made of 6 or more curved panels that rotate around the door's perimeter to open and close a circular opening. Could also be known as the Buck Roger's Door, as it is seen mostly in Space Sci-Fi films. 12 volt version would draw a lot of amperage. Best to enter and leave cabin while on Shore Power.
The Glass Revolving Door- very practical for skyscrapers and cost unlimited style architecture, like Congressional Office Building, CIA Headquarters, Enron World Centere, and West-Marine Office Building in Watsonville, Ca. Features unique energy saving design to limit exchange of air inside with that outside, saving on HVAC costs. While it would take up most of entire cockpit and cabin on a D-Dory, you'd have the only one in existence, and be the center of conversatiopn at the next CBGT. Also useful in keeping small rat-like dogs busy going around in circles so they don't bug you at the helm. Good project for Mechanical Engineering Nerd on long, cold, PNW winter nights. Patent potential for suitable marine design.
The Sphincter Door- Round flexible rubberized cloth opening featuring elastic drawstring in middle which can be either opened by loosening the drawstring, or simply dived headfirst through in an emergency. Low cost, simple to engineer, easy to assemble. An everyman's DIY Project! Color optional. Cloth selection can be matched to boat's color scheme, but our staff prefers alternate red and whilte circular bands to simulate Bull'seye Target for emergency use and to conform with USCG Regulation 6398a.1.
As long as we're considering alll the possibilities, practical and impractical, I'll add the following (since things are slow this morning):
The Apreture or Iris Door- this is like the iris or aperature in a camera that is made of 6 or more curved panels that rotate around the door's perimeter to open and close a circular opening. Could also be known as the Buck Roger's Door, as it is seen mostly in Space Sci-Fi films. 12 volt version would draw a lot of amperage. Best to enter and leave cabin while on Shore Power.
The Glass Revolving Door- very practical for skyscrapers and cost unlimited style architecture, like Congressional Office Building, CIA Headquarters, Enron World Centere, and West-Marine Office Building in Watsonville, Ca. Features unique energy saving design to limit exchange of air inside with that outside, saving on HVAC costs. While it would take up most of entire cockpit and cabin on a D-Dory, you'd have the only one in existence, and be the center of conversatiopn at the next CBGT. Also useful in keeping small rat-like dogs busy going around in circles so they don't bug you at the helm. Good project for Mechanical Engineering Nerd on long, cold, PNW winter nights. Patent potential for suitable marine design.
The Sphincter Door- Round flexible rubberized cloth opening featuring elastic drawstring in middle which can be either opened by loosening the drawstring, or simply dived headfirst through in an emergency. Low cost, simple to engineer, easy to assemble. An everyman's DIY Project! Color optional. Cloth selection can be matched to boat's color scheme, but our staff prefers alternate red and whilte circular bands to simulate Bull'seye Target for emergency use and to conform with USCG Regulation 6398a.1.