On Jun 8, 8:41*pm, Eric Greenwell wrote:
wrote:
On Jun 8, 6:58 pm, SF wrote:
The June 4, 2009 issue of Machine Design has a Sparrow Hawk glider on
the cover. *The article does a very good job of covering all three of
Windward Performance's current sailplane projects. *The Sparrow Hawk
13m ultralight, the Duck Hawk 15m racing plane and the Perlan
(designed to break the world altitude record). *If you don't receive a
copy of Machine Design you can see the entire article on line at:

http://machinedesign.com/article/win...esigns-and-man....

I find it amazing that the SSA was unwilling to print articles on
Windward Performance, the SparrowHawk and the DuckHawk in Soaring.

Soaring has published at least two articles on the SparrowHawk: Jan
2001, July 2002. An article on Perlan Project, including Windward
Performance's involvement in it, is due out sometime this year. As far
as I know, no one has written an article on the DuckHawk that adequately
describes the project, and so no article has been published in Soaring.
I think that's reasonable.

I'm hoping Jim Payne will have an article on his 1258 km flight in a
SparrowHawk!

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* "Transponders in Sailplanes"http://tinyurl.com/y739x4
* * * Sections on Mode S, TPAS, ADS-B, Flarm, more

* "A Guide to Self-launching Sailplane Operation" atwww.motorglider.org

Eric,

I believe those articles can be put in the classification of acient
history. I am talking about the many recent developments. How
could a machine design publication scoop Soaring on new trends in
sailplane design and manufacture?

Richard
www.craggyaero.com