One-Minute Physics: How wings really create lift. Sandrine Ceurstemont, editor, New Scientist TV How does air flow across a wing to generate lift?
Since a wing's top surface is curved, it covers a greater distance compared to the flatter bottom edge. A common explanation is that air moves faster over the top so that it reaches the end of the wing at the same time as the bottom flow, lowering the pressure on the top surface. But this pressure explanation is just a myth, explains Holger Babinsky, professor of aerodynamics at the University of Cambridge. In an attempt to debunk the misconception, he filmed pulses of smoke flowing around an aerofoil. Babinsky explains that, although lift is caused by a pressure change between the top and bottom surfaces, it's due to the change in the shape of the air flow, rather than its speed.
If you enjoyed this video, find out how wind can take down a bridge or check out our archive of One-Minute Physics episodes. Easy Built Models - Model Tips. Paper aeroplane throw in US sets new world record. Gallery « Rubber-Power.com. Aero. Aerofoil effect pdf eBook Download. HiLiftPresPt1. v52-55. Rubber-Power.com. Easy Built Models - Model Tips. 14 Lovely Paper Airplanes (And How To Make Them) I'm digging for interesting paper airplanes the last few days and found a lot of impressive ones. Being a cool dude I'll share them with you. Best of all, all these guides are free. When you make one of those, please send me a photo! Free Plans « Small Flying Arts. Paper Airplane Instructions. I first became interested in airplanes when I was about twelve years old.
Every time I went to the dentist, I selected a simple styrofoam airplane from the treasure chest. I enjoyed playing around with the wing placement to see how it would affect its flight. For Christmas in 1996, I received The World Record Paper Airplane Book written by the world record holder of the longest indoor paper airplane flight, Ken Blackburn. This book explained why paper airplanes fly and crash, and what makes a good airplane design. I enjoyed folding and flying the designs in the book. It wasn't until February of 1997 that I started designing my own planes. From there I just took off and made up many airplane designs, learning that I could tweak them so that anything I came up with would fly straight and smoothly.
The Eagle This is a very stable plane. Floating Dart This design is a variation on the dart, the most common paper airplane that exists. Fly-away Remnant. Learn how to make 10 great paper airplanes with free animated instructions. Outerzone : Free plans : Listing of free vintage model aircraft plans to download. Model Aeroplane Plans. Claranet SOHO specialises in providing businesses and homes with broadband, hosting and server technologies, including super-fast fibre broadband, online backup and children’s internet security. Mike's flying scale model pages. How To Build A Free Flight Aircraft. Free flight airplanes are the oldest form of model aircraft. This hobbie originates from about 2 centuries ago. If you have made your first paper airplanes, maybe it's time to think about the more exciting free flight models. Istanbul FF-Cup 2006 Model by Naci Bitik Photo by Ismail SARIOGLU Free flight models are easy to make and often can be built with materials on hand.
You'll most probably want to build a free flight hand launched glider (learn more about them) or rubber band powered aircraft. Find Plans At first look the free flight models are very simple and you could design one yourself. Most of these plans are freely available for download. Free Plans. Half-Lite Stunter This is an easy to build competition stunter capable of a 500+ pattern. 1/2 Lite Foam Core Stunter for Norvel .049 to .061. Core House Half-Lite Wing foam core. 1/4 oz tip weight. Root Cord 7", Tip Cord 5.25" Wing Area: 187 sq. in., Weight: 12oz. 22-1/2" overall length., Nose Moment 5" Tail Moment 8 1/4" The Wing Core is available at: The Core House: Phil Cartier, 1249 Jill Drive, Hummelstown, PA 17036, (717) 566-3810 Combat Cores and Kits, send $1 for catalog. MonoKote Hinges for 1/2A models Half-Lite combat is from AMA plan No. 577 published Jan 1988. The Osborne Platter A virtuall indistructable model designed by Bill Osborne.
The Stealth Platter designed by instructor Heman Lee Coroplast/ Correx(UK) version of the Osborne Platter by William Crane aka Mr.