Recovered to group:

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--- On Thu, 1/12/05, TONY PRENTICE wrote:
From: TONY PRENTICE
Subject: Re: HGH:
Early HG model directory
To: HangGliderHistory@yahoogroups.com
Date: Thursday, 1 December, 2005

Hi Ken,
 
Thanks for the various references on the subject. I had tracked down the link to the book and posted details on HGH so that others could look it up. Are your other references also available to look up on the Internet ? A number of posts had referred to publications before 1912 but it would be great to actually see them.

I know of a Chanute type that was built in the 1960's here in the UK. It did fly but the pilot broke an arm at some point during the tests. Volmer Jensen may well have used plans from these early publications for his machine.

The 1910 Clarke glider was an advanced form of the Chanute type having both weight shift and aerodynamic control.( now on display at the RAF museum Hendon.) I am not sure if the Clarke company provided plans for home building but they also built Wright type gliders under licence.
Stephan Nitsch's modern replica Chanute was really good fun to try and fly and hopefully we will be comparing it against the Lilienthal early next year.
 
Regards, 
Tony

Ken wrote:==============
Tony, 
Here is a link to that book http://etext.lib.virginia.edu/toc/modeng/public/JacFlym.html
 
Here is some info on the publication of plans for Chanute type biplanes and other "hang" type gliders;
 
 1. "How To Build a Bi-Plane Glider" Book Alfred Powell Morgan 1909
 
 2. "Scientific American Boy At School"  Book 1909
 
 3. "How To Build A Gliding Machine" Article by Carl Bates in "Fly" Mar 1909
 
 4. "How To Make A Glider" Article by Carl Bates in "Popular Mechanics" Apr 1909
 
 5. "Some Experiments In Gliding Flight" Article by Horace Vaughan in "Flight" Dec 4, 1909
 
 6. "How To Make A Monoplane Glider" Article by William Grotzinger in "Popular Mechanics" Sep 1911
 
 7. "How To Build A Glider" Chapter in "Harper's Aircraft Book"
 
 8. "Tandem Monoplane Glider" by George F. Mace Chapter in "Boy Mechanic Book 2" 1915
 
 9. "How To Make A Monoplane Glider" Article by William Grotzinger in "Boy Mechanic Book 2" 1915
 
 10. "How To Build And Use A Glider" Chapter in  "The Boys' Outdoor Vacation Book"  1915
 
 11. "An Airplane-Type Ski Glider" by F.D. Burke Article in "Popular Mechanics" Feb 1920
 
 12. "How To Build A Glider For Ten Dollars" by George D. White Article in "Popular Mechanics" Jun 1920
 
This is just a list of plans through 1920. There are many more mentions, articles and photos I am aware of but this is a list of plans from which one could actually build a glider from. There are many more beyond 1920 but I chose to list only to that year.
 
Photocopies of these plans and other text and photo pages from that era are available for $3 per page plus postage and handling.
 
Ken de Russy
USHGA Life/Charter Member #5114
Hang Gliding Museum Collector Guy
Anacortes, WA
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In a message dated 11/29/2005 12:34:51 PM Pacific Standard Time,
Tony Prentice  writes:

Brett,
When you get to see the film of the split-wing flying let me know
what you think the wing is doing.( yawing ?) The control input was
only weight shift but it was very stable and it required a lot to de-
stabilize it to turn the way the pilot wanted to go. I still think the
Spratt control wing has an uncanny resemblance to modern flexwing
microlights.

Regarding the various posts on the bi-plane hang glider drawings they
all seem to owe their origin to the Chanute /Herring designs. A book
was published in 1912 by Charles C Thompson Co, Chicago. USA, called
FLYING MACHINES: Construction and Operation by W J Jackman M.E. &
Thos H Russel, A.M., M.E. The introductory chapter is by Octave
Chanute, C.E.. It contains drawings and information on how to
construct such machines in considerable detail.
I only have parts of the book which were e-mailed to me by Eric
Littledike. I have asked him where the original source of this
material can be found. The drawings, in the pages I have, seem to the
same as those in later publications but re-drawn by another artist.

Regards,
Tony