Development
The ornithopter was a high-wing monoplane, with the pilot seated in a recumbent position. Its construction followed conventional glider practice of the time. The fuselage had a bulkhead construction, covered in thinTesting
Flight testing commenced on Sunday, 1 November 1959, with Hartman acting as pilot. Non-flapping flights were made, towed behind an automobile. During a subsequent towed flight, conducted on Wednesday, 4 November, at an altitude of , Hartman experienced control difficulties due to a crosswind, landed heavily and incurred a ground loop, which damaged the port wing. In 1964, it was reported that the ''Ikarus'' was still in storage at the College of Aeronautics, at Cranfield, with no further flight attempts having been made. The project (including design, drawing, and construction) was said to have involved 4,624 hours worth of work, and to have cost £2,450.Patents
* *Specifications
See also
References
{{reflist, refs= {{cite journal , editor1-last=Laidlaw-Dickson , editor1-first=D.J. , editor2-last=Moulton , editor2-first=R.G. , journal=Aeronautical Annual 1964-65 , date=1964 , author1=Karl Herzog , translator1=Dick Hirdes, title=Flapping wing flight in nature and science, publisher=Model Aeronautical Press , location=Watford, Herts, UK , pages=44-57 {{cite journal , editor1-last=Laidlaw-Dickson , editor1-first=D.J., editor2-last=Moulton , editor2-first=R.G., author1-link=Ron Moulton, journal=Aeronautical Annual 1964-65 , date=1964 , author1=R.G. Moulton , title=Muscle Power, publisher=Model Aeronautical Press , location=Watford, Herts, UK , pages=58-63, 137 {{cite magazine, editor-last=Smith , editor-first=Maurice A., date=13 November 1959, title=Sport and Business, magazine=Flight , location=London, UK, publisher=Iliffe & Sons Ltd, volume=76, number=2644, page=557 {{cite book, last=Reay , first=D.A. , date=1977 , title=The history of man-powered flight , location=Oxford, England , publisher=Pergamon Press Ltd , pages=181–182 , isbn=0080217389 {{cite magazine, last=Campbell , first=Don, date=December 1959, title=The Hartman Ornithopter, magazine=Sailplane and Gliding, location=London, UK, publisher=The British Gliding Association , volume=X , number=6, pages=333-334, back cover, issn= 1950s British experimental aircraft Aircraft first flown in 1959 Human-powered aircraft Ornithopters High-wing aircraft Aircraft with fixed tricycle landing gear