I took some pictures of Mr. Hiller at the 2004 Vertical Challenge airshow, after he was flown to the show flightline in a UH-12? (I'm not very familiar with the various Hiller models):
http://blave.smugmug.com/gallery/153068/2/5676700
http://blave.smugmug.com/gallery/153068/2/5676701
http://blave.smugmug.com/gallery/153068/2/5676702
http://blave.smugmug.com/gallery/153068/2/5676703 I still wonder why the Hiller coaxial single-seater couldn't be built at a reasonable cost as a home-built:
http://blave.smugmug.com/gallery/153068/1/5676689
http://blave.smugmug.com/gallery/153068/1/5676691 It appears (to my untrained eye) to be a relatively simple design.
At any rate, you have to greatly appreciate the engineering that went into these early birds - those days are gone forever (i.e. it was all done before lawyers were invented
).
Enjoy,
Dave Blevins