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My Part 103 compliant ultralight self-launching sailplane.
The large pictures show the project as it was in August 2010. It was to a point where it was ready for more test flying after
some refinements were made.
The Red Tail Hawk has a laminar flow airfoil, a carbon fiber tail boom and tail surfaces, welded steel tube frame, fiberglass
shell.
It is launched with a battery powered electric motor, spinning a folding propeller, that is shut down once enough altitude
is reached for soaring like a conventional sailplane.
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I have have a blog where I write about the design and construction of the Red Tail Hawk in detail. And also consider the issues
of a version that others could build. It is a Yahoo email group, and allows some feed back from readers, but is operated mostly
as a blog. You will need to join the group to read and post comments.
Link to my Red Tail Hawk blog:
Here is a video of a static run-up of the e-power system on the Red Tail Hawk, done in early June, 2009.
click here to play video
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| Proof-loading a nose sample, over 6 g with no distortion |
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| Foam and fiberglass nose, aluminum aft of spar |
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