Grumman F9F Cougar (oz669)


Grumman F9F Cougar (oz669) by WH Paxton 1956 - plan thumbnail

About this Plan

Grumman F9F Cougar. 1/2A scale ducted fan model of the jet fighter.

Quote: "Realism, a good flight performance, are combined in this beautiful scale job. Ducted Fan Grumman Cougar, by WH Paxton Jr.

Relative size of the flying model is indicated by nine-year-old Bill Paxton, author's son. Performance good enough to allow painted finish.

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 28 in; length, 33-1/2in; 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!

Construction of the model is not conventional but neither is it difficult if you take the time to study the plans and photographs and follow these step-by-step assembly sequence instructions:

1. In order to keep the weight to a minimum, be careful to select straight soft balsa for all bulkheads, ribs and for planking; medium soft balsa for all spars and longerons.
2. Cut out -11, -12 and -13 engine mount and supports from 1/8 basswood plywood. Add tin mounting plate with 3-48 nuts for engine.
3. Subassemble these using Ambroid cement and tie with thread the -13 mount to the -11 and -12 supports. Give entire assemby four coats of red Aero Gloss dope.
4. Tie and cement fule tank in place.
5. Cut out top, side and bottom longerons and all bulkheads..."

Update 21/10/2018: added article, thanks to RFJ.

Supplementary file notes



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Grumman F9F Cougar (oz669) by WH Paxton 1956 - model pic


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