So you
want to
build a
Chanute
Glider? |
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Information for those
who are interested
in building a
Chanute type glider.
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The Chanute Glider has been copied and built by experimenters and hobbyists for
decades. Indeed, Scientific American published an article in 1909 about how to build a
Chanute type glider (see the Bibliography for
citation). Over the past several decades, a number of replicas
have been built for museums, and in 1996, three replicas were
built for flying.
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While no published plans for the glider are available, Paul Dees, an aeronautical
engineer, has provided excellent descriptions of his experiences building a Chanute
glider. He wrote an extended article in the December, 1996 Hang Gliding magazine, a
publication of the United States
National Hang Gliding Association. An even more detailed and colorful article appeared
in the EAA Experimenter's
February, 1997 issue which is available from the EAA for
$2 plus $2 handling. If you can't find these publications in your library, contact the
organizations.
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Paul has provided this Chanute website with a summary of his experiences in building a
Chanute glider, as well as his motivation for taking on this time consuming project. Paul
welcomes inquiries. If you are serious, contact me
for his snail mail address. The picture below of Paul flying the glider was taken July 26,
1996 by Paul's sister Sue Dees at Warren Dunes State Park. All rights to the photo
belong to the photographer, please do not reuse without permission.
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Paul writes:
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The Chanute biplane glider is a beautiful and simple aircraft. It set a trend in the
structural design of biplanes that was followed and improved on for many years after it
first flew. Compared to other flying machines at the time, it was in my opinion a
masterpiece.
Three early gliding
pioneers died in glider crashes (Otto Lilienthal, Percy Pilcher, and John Montgomery). The
Chanute biplane had hundreds of safe flights with no fatalities. William Avery did injure
himself while being towed aloft at the 1904 World's Fair in St. Louis, so it did not have
a perfect record either.
Hang gliding is a risky sport, and any person interested in flying one should wisely
invest in proper training from an experienced, established United States Hang Gliding
Assn. (USHGA) certified instructor on appropriate training equipment. The Chanute glider
is not safe for training, and is in every way inferior to 1990's equipment (performance,
setup time, safety, handling qualities, cost).
I built and flew my replica for several reason. First, to recreate history on the 100
year anniversary to honor our early aviation pioneers. Second, to learn about other
aspects of aircraft design than my chosen field. Third, to experience a different aspect
of hang gliding. It was really fun! My respect for Chanute, Herring, and Avery increased
greatly.
Here is a summary of the glider's characteristics:
- Wingspan = 16 ft.
- Wing area = 154 square feet
- Empty weight = 54 lb
- Materials = Aircraft quality Sitka spruce, ash, aircraft hardware, Stits PolyFiber
- Stall speed = 24 mph (estimated)
- Estimated glide ratio = 5 (out of ground effect)
- Flight duration = 3-5 seconds each on two flights (all in ground effect)
- Fuel required = several cool drinks
- Flight length = 150-200 feet (estimated)
- Static load tested load factor = over 2 g's
- Static longitudinal stability = solid and stable
- Lateral/directional stability = skittish
- Time needed to build = 10 months
- Hours needed to build = 150 hours research and engineering, 325 hours to build
- Cost = enough to have bought a nice used hang glider
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Paul's glider is now on display at Seattle's Museum of Flight which also has a reconstruction of the 1902 Wright
glider.