271 results found displaying 55-57
    
westfalr
 USA
Kitesurfing Hydrofoil Boat Printer Friendly Version
Main features:
* 2-3 kitesurfing type sails
* 2 catamaran hulls
* hydrofoils under both ends of each catamaran hull
* some kind of deck to hold passengers and cargo
Details:
* the kitesails would be staggered from front to farther back (exact locations need to be worked out)
* the angle of attack of the sets of hydrofoil blades on each corner would need to be controllable to facilitate the boat rising out of the water for less drag but not getting tipped over by gusts of wind
* the vertical members that hold the hydroil blades would also act as daggerboards and be steerable to control sideways slipping and enable tacking against the wind
* a small auxiliary energy system would be very helpful for "power steering" and to power onboard computer circuitry and sensors to respond to wind gusts and make rapid adjustments to avoid tipping over
Background
* boats using kites for propulsion date back to 12th century in China (see http://www.kitesurfingnow.com/kitesurfing-facts/history-of-kitesurfing.shtml)
Reward: A lot of free publicity for California State University, Pomona in advertising, literature, web sites, etc. related to commercial sales of products based on this concept. 

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15°

    
Kevster
 USA
Ultimate commuter bicycle Printer Friendly Version
Over ten years ago the ultimate fluid drive bicycle was invented by Douglas Brackett. This idea will transform that invention into the ultimate augmented drive cycling machine for commuters by introducing a micro-engine driven hydraulic rotory pump that feeds the same hub motor as does the variable piston pump driven by the pedal cranks. A control/relief valve will govern the top speed to meet legal requirements regardless the engine speed.
Reward: The duel independent drive systems will meet Federal requirements for cycling streets and trails w/o any need for license, registration or insurance. The problems this closed system will solve are: exhausting commutes, chain, rear tire and friction wheel excessive wear and maintenance/replacements; bike imbalance due to side mounted engines; and inconvenient adjustments for wet weather conditions. Other rewards include the 200 mpg ecomomy of using a micro-engine as well as its possible application on a fold up bike. An all round happy ride. 

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24°

    
Robert Tyldesley
 United Kingdom
Travel lite Printer Friendly Version
Today airline passengers travelling on "low cost" airlines do not want to waste their precious luggage allowance checking in heavy suitcases. Many low cost airlines restrict passengers to exceedingly low permitted weights of check in luggage. Ryanair allow 15 kilo and charge $20+ per kilo for excess. There is a market for a strong ultra lightweight wheeled carrier combined with for an ultra lightweight bag. Ideal would be a "hi tec" folding wheeled carrier which can be used in combination with "check in" and "carry on" luggage. The days of "designer label luggage" could be over if the traveller could opt for a trusted engineering product which would deliver a practical solution to a 21st century problem. Have more ideas about this design.
Reward: Contribution to an agreed charity 

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18°

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