GPS-Guided Ducted Fan UAV

"BTT" UAV ready for flight.

Above is a picture of the GPS-guided UAV that six Iowa State students, including Sam and Ben, built in the Spring of 2002.  It has an onboard computer and other electronics for automated flight.  It is powered by a 6" ducted fan mounted in the fuselage.  The airplane is built of mostly composite materials.

Because most of the students who were involved in this project have graduated, very little flight testing has been done.  Here is a video of the first flight.  Although the video doesn't show it, the UAV was unstable after takeoff and it rolled inverted and crashed.  Despite the impact speed of about 30 mph, the airplane only had minor damage done to its nose and tail fin.  More pictures and videos are available in the downloads directory.

The crash damage has been repaired and the stability problem has been addressed.  The UAV is currently undergoing improvements at Homer's Happy Hog Farm.  The most recent flight testing shows a cruise speed of 96 mph, and a takeoff speed of about 35 mph.  The UAV has been crashed several more times, but the only thing that usually breaks is the nose gear.

 

BTT Specifications

Weight: 18 lbs
Wing Span:     79 inches
Length: 67 inches
Engine: O.S. .91 DF
Fan: 6" custom
Computer: 386 w/XDos
GPS:

 

Garmin Etrex

 


BTT Home

Design

Construction

Engine

Computers

Engine

Gallery

E-mail:  bjshowman@weedplane.com

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