I have an article reprinted from the 1920's IIRC that is an account and
has pictures of a bi-wing glider built and flown by Ed Heath. He had
basically omitted the engine from one of his bi-planes and moved the
pilot location for the correct CG. I believe this was the glider he
set several records in. Notably none were soaring records. Something
like farthest distance towed and first glider to perform a loop. The
plane sufferred a very poor L/D due to interplane struts and full wire
bracing!

T-rex