Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
You think: Aha! We go: ha, ha.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


 

proa style hybrid sail-air craft

proa shunts with dual wing sails , they fold down for flight
  (-1)
(-1)
  [vote for,
against]

a proa is a polynesian style outrigger boat. with ONE outrigger that is smaller.

it is assymetric. the smaller outrigger always faces the same direction as the boat 'shunts' instead of tacks the wind.

(shunting is like going goofey foot on a snow board instead of carving 180 when you turn) the main body hull possesses 2 wing sails , rigged at extreme ends of the hull. they are used for sailing, until they are needed for flying.

when they are needed for flying they are let down horizontal and the outrigger mounted aero-propeller then throttles ( it can throttle while the wind sails up vertical used for sailing to supplement the boats power, like in motor sailing using the hydro-prop to supplement the boats wind driven sail inertia)

teslaberry, Sep 11 2014

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)







 

back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle