How to build a 20-foot bi-plane glider, by Alfred Morgan 63077 [Subtitle: A practical handbook on the construction of a bi-plane gliding machine] [Link: http://www.gutenberg.org/6/3/0/7/63077 ] [Files: 63077-0.txt; 63077-h.htm 63077-rst.rst] [All the file formats were generated at the time of posting from a RST master file.] Thanks to James Simmons Regards, Al