ATO #103 - April 7, 2000
QuestChats require pre-registration. Unless otherwise noted, registration is at: http://quest.arc.nasa.gov/aero/chats/ Thursday, April 19, 2000, 9 - 10 AM Pacific Aerospace Team Online QuestChat with Chris Beins Did anyone ever copy your work? How did that make you feel? Chris Beins plays an intersting role! His job is to help engineers and scientists work with lawyers and business people to understand ideas, software and computer programs are protected and safe from hackers! Read his bio at http://quest.nasa.gov/aero/team/beins.html Tuesday, April 25, 2000 10 - 11 AM Pacific Regimes of Flight Aerospace Team Online Chat with Steve Smith As an aerospace research engineer, Steve Smith spends his time doing experimental research in wind tunnels and applying computer flow simulations to evaluate new ideas for airplanes. Read his bio at http://quest.nasa.gov/aero/team/smith.html
"Regimes of Flight" Design a New Aircraft CONTEST Ends April 14th! Regimes of Flight Design a New Aircraft Contest, Grades 4-8 For more information: go to http://quest.nasa.gov/aero/events/regimes/contest.html#design Regimes of Flight Art Contest begins April 17, 2000
[Editor's note: Dale Satran does research on planes like the B777 and a blended wing airplane. Read his bio at http://quest.nasa.gov/aero/team/satran.html ]
BLENDED WING BODY TEST IN THE 40x80 WIND TUNNEL
by Dale Satran
March 27,2000 A revolutionary vehicle design where the wing and fuselage are blended together provides significant performance benefits over traditional commercial transports. Due to the blending, the vehicle is basically a flying wing. Total vehicle weight is reduced and aerodynamic performance is enhanced by this new design but the stability and control of the aircraft is challenging. In other words it will get better gas mileage but it might be more difficult to fly. To evaluate the total configuration, a 14.2% scale vehicle (does this mean smaller or larger?) is being designed as a remotely piloted vehicle. Before the vehicle is flight tested, the vehicle will be mounted in the 40x80 Wind Tunnel. It will save money to use the same model in the wind tunnel and for flight testing. The vehicle will have three engines each capable of producing 200 pounds of thrust. All control surfaces on the vehicle will be remotely controlled by the flight computer as directed by the wind tunnel data acquisition computer. Do you think that would be a fun computer program to write? Since the vehicle will be a flight vehicle, there are numerous challenges and restrictions on the modifications that can be made to the vehicle for mounting the vehicle into the wind tunnel. Every time trade offs, on the one hand it saves some money but now it will complicate how we mount the model in the tunnel.