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UPDATE #57 - March 26, 1999 PART 1: Upcoming Chats UPCOMING CHATS
QuestChats require pre-registration. Unless otherwise noted, registration is at: http://quest.arc.nasa.gov/aero/chats/#chatting Tuesday, March 30, 1999, 10:30 AM Pacific Standard Time: Jason Brown, Safety Engineer As the System Safety Engineer on the Wright Flyer Project, Jason Brown makes sure that the equipment being used to drive the airplane model's motor is safe, so that people don't get hurt and the airplane doesn't get damaged. Rather than waiting for equipment to fail, Jason tries to predict what may go wrong equipment to fail, Jason tries to predict what may go wrong before it happens. Based on these predictions, Jason then suggests design changes or other safety measures that will eliminate or control these hazards. Read Jason Brown's profile prior to joining this chat. http://quest.arc.nasa.gov/aero/wright/team/brown.html Wednesday, April 7, 1999, 11 AM Pacific Daylight Time: Anne Corwin, engineering aide In addition to being an intern and a full-time student, Anne assists the staff of the 40x80- and 80x120-foot wind tunnels with anything they need help with. Since July, Anne has been working on a large-scale software development project. She is constructing a program in that will allow customers and users of the wind tunnels to set up and plan out their tests in an entirely electronic format. Read Anne Corwin's profile prior to joining this chat. http://quest.arc.nasa.gov/aero/wright/team/corwin.html Wednesday, April 14, 1999, 10 AM Pacific Daylight Time: Mark Kilkenny, program planning specialist Over the past 16 years, Mark has worked in administrative positions for NASA. His current work focuses on John Glenn Research Center's administrative and business operations. He is responsible for conducting strategic planning for the center. He also helps the center determine how well it is progressing towards its long-term goals and objectives. Read Mark Kilkenny's profile prior to joining this chat. http://quest.arc.nasa.gov/aero/team/kilkenny.html Tuesday, April 20, 1999, 9:30 AM Pacific Daylight Time: Rich Coppenbarger, aerospace engineer Rich develops hardware and software systems to help air traffic controllers manage aircraft as they fly throughout the nation's skies. One of the software programs he is developing is called the CTAS, which helps air traffic move smoothly and without delays. The CTAS is part of the Advanced Air Transportation Technology (AATT) program, which is designed to help our nation's air transportation system function better and more safely, even with more aircraft flying in our skies. Read Rich Coppenbarger's profile prior to joining this chat. http://quest.arc.nasa.gov/aero/team/coppenbarger.html Tuesday, April 27, 1999, 11 AM Pacific Daylight Time: Ray Oyung, research coordinator, Fatigue Countermeasures Program Ray is part of a team that works in the Fatigue Countermeasures Program. The team tries to find ways to reduce the effects of fatigue, sleep loss, and disruptions to the body's internal clock on flight crews during flight operations. Ray is also part of a research team. As a member of the research team, Ray collects data from experiments focusing on certain aspects of fatigue and how they affect us. Read Ray Oyung's profile prior to joining this chat. http://quest.arc.nasa.gov/aero/team/ray.html Wednesday, April 28, 1999, 11 AM Pacific Time: Phillip Luan, instrumentation engineer Balances used in wind tunnel tests tell engineers how the force of the wind affects the model. Phillip is responsible for making sure that balances used for these tests are extremely accurate. He also helps determine how electrical signals received during the tests are related to the accuracy of the balances. Read Phillip Luan's profile and learn more about the Balance Calibration Lab prior to joining this chat. http://quest.arc.nasa.gov/aero/wright/team/luan.html http://quest.arc.nasa.gov/aero/wright/tunnels/balcallab.html PROJECT NEWS
March Creative Writing Contest Welcome all entrants grades K-12! Think about what the 1903 Wright Flyer Model feels like! A bit of anthropomorphizing just for fun! For details go to http://quest.arc.nasa.gov/aero/wright/events/contest/writing.html - - - - - - - Wright Flyer Replica Wind tunnel Data Posted with Lesson Plans! See five runs worth of data and use it with the lesson plans to gain an understanding of the data. http://quest.arc.nasa.gov/aero/wright/teachers/angles/data.html Wind Tunnel Data Lesson Plans Do you "Know all the Angles"? Learn about lift and drag! Grades 4-8 Why is it important to "Get the Wright Pitch"? and "Watch your Attitude"! Grades 6-8 Getting "Up, up and Away" - learn what the Wright Brothers learned. Grades 9-12 http://quest.arc.nasa.gov/aero/wright/teachers [Editor's Note: Henry Jex is an AIAA member who's had a long career in the aerospace industry. His profile is being edited and will be online soon at http://quest.arc.nasa.gov/aero/wright/team ]
PRELIMINARY DATA REVIEW by Henry Jex March 19, 1999 Preliminary plots of key data reveal some interesting differences from earlier unpowered model tests of a small-scale steel model. The billowing of the actual fabric between ribs creates more wing camber (chordwise curvature) as the lifting pressure increases at increasing angle-of-attack, giving a higher lift-curve-slope. Even though the propellers don't blow on any model surface, they produce some consistent differences compared with props-off. The wing warping scheme worked very well, and the fear of aerodynamic flutter of such a torsionally limber wing structure was not realized. The extremely unstable properties of the 1903 Flyer were verified, and this proved that the Wrights long practice in their gliders was an essential ingredient in their success. Additional data were obtained that will help us design a safer, "stand-off scale" version of the Wright Flyer, which we hope to fly in 2003; 100 years later. So this unique wind tunnel test of an exact, full scale replica of the 1903 Wright flyer fully proved the aerodynamic and structural ingenuity of the Wright Brothers and the durability of their seemingly flimsy chain-driven propellers. Their tough design flew for more hours in the NASA Full Scale Wind Tunnel than in all of their flights of 1903 and 1904 put together! SUBSCRIBING AND UNSUBSCRIBING
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