Full Size Printed Plan Free flight 1/2 A Ducted Fan "Grumman Cougar" or try newer electric ducted fans
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Full Size Printed Plan & Building Notes
No materials. Plan only
Construction of the model is not conventional but neither is it difficult if you take the time to study the plans and photographs
Full Size Printed Plan on a Sheet 44" x 33" 20lb bond
Seven page article with building notes and photos
Some may wish to try newer electric ducted fans Sufficient room for up to 92mm Fan
by W.H. Paxton Jr.
To those of you fortunate enough to have seen, the Navy Blue Angels perform their fantastic precision-flying act at the Nationals, no introduction to the Cougar is necessary. To the rest of you, well-maybe the pictures of this model will speak for themselves. The wing span is 281/4 in.; length, 33 1/4 in.; flying weight is about 13 1/2 oz. Power is supplied by the new Cox Thermal Hopper free flight engine, selected because of its terrific speed which was measured by strobe light with the metal fan shown at 17,200 rpm!