Lazair UltralightUltralight Aviation     Ultralight news,    Ultralight Classified       Avitop.com   Lazair Ultralight  Low N  SlowAVIATION TOP 100 - www.avitop.com
Site Map   Pilots  Forum  Files  Help  Links  Technical Bulletins  Lazair   Registry

 

 

CONTEST for Lazair BUFFS -

prize will be bragging rights that u da man !  

WHO WROTE THIS and why ?    

I CLAIM:

1. A system for wind-powered flight, comprising a tethered low-speed, high-drag leading aircraft, adapted to remain aloft under a force of lift provided by a high altitude wind acting against the aircraft in a flying direction, a force of drag against the leading aircraft being opposed by a tether attached to the leading aircraft, for wind-powered ascent to a first altitude, and a low-speed, low-drag trailing aircraft tethered to the leading aircraft, and adapted to remain aloft under a force of lift provided by one or more airfoils moving through air at a second altitude which is lower than the first altitude, wherein the leading aircraft extracts wind energy from the high altitude wind to tow the trailing aircraft at a sufficient air speed to maintain the trailing aircraft aloft.

2. The system of claim 1 in which the leading aircraft is a kite.

3. The system of claim 1 in which the trailing aircraft is a glider.

4. The system of claim 1 in which the leading aircraft is adapted to transport one or more passengers or cargo.

5. The system of claim 1 in which the trailing aircraft is adapted to transport one or more passengers or cargo.

6. A method of wind-powered flight utilizing a tethered low-speed, high-drag leading aircraft adapted to remain aloft under a force of lift provided by a high altitude wind acting against the aircraft in a flying direction, a force of drag against the leading aircraft being opposed by a tether attached to the leading aircraft, and a low-speed, low-drag trailing aircraft tethered to the leading aircraft and adapted to remain aloft under a force of lift provided by one or more airfoils moving through air in the flying direction, comprising the steps of a. tethering the leading aircraft to the trailing aircraft, b. stabilizing the leading aircraft so that it ascends to a higher altitude, and c. towing the trailing aircraft in a flying direction, such that the trailing aircraft ascends to a lower altitude, wherein a difference between a speed of a high altitude wind in the flying direction at the higher altitude and a speed in the flying direction of a wind at the lower altitude equals or exceeds a takeoff velocity of the trailing aircraft plus a speed of wind across the leading aircraft sufficient to generate a force of lift on the leading aircraft which allows the leading aircraft to remain aloft.

Site Map for Lazair.com      SiteMAP
Lazair Ultralight Pilots Builders Tips Help Forum Files Dale Kramer

 

 

 

Lazair on  Skisevery Tuesday LISTEN Ultralight Flying Magazine

Excellent Lazair Ultralight Websites

Lazair.com
Lazair Forum
Lazair Forum on Yahoo
LAZAIRFORCE
ulflyer
News Letter
Ultralightnews
Smithsonian
Freedom Airtec
Bob Comperini
Toronto Museum
UltraFlight 
Spinners
Fatal Accident
Fiberglass Tips
Dale Kramer
25Years 
Thirty Thousand Feet - Aviation Directory