Talk:Grumman F-9 Cougar

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Grumman F-9 Cougar was nominated as a Warfare good article, but it did not meet the good article criteria at the time (February 1, 2021). There are suggestions below for improving the article. If you can improve it, please do; it may then be renominated.

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Flaperons

Curious why anyone would call spoilers "flaperons" since they have no relationship to the well established concept of flaps at the time, either in function or construction. Spoilers destroy lift, flaps increase it. They would be called "spoilerons" today, as they do the job of spoilers and of ailerons. Flaperons would be ailerons that also serve as flaps, i.e. drooping flaps, or vice versa. And flaps weren't some new technology at the time. So it's baffling why they would use such a misleading term. 2600:1000:B147:D12:0:70:A79:5001 (talk) 22:29, 2 June 2025 (UTC)[reply]

You would have to ask Grumman as they are definitely termed flaperons in the flight manual, there are no ailerons on the production aircraft apart from a small electrically-operated one at the left wing tip for roll trim. Roll spoilers are common, sometimes with ailerons, sometimes without. Roll spoilers reduce adverse yaw as there is no down going aileron to increase lift/drag. They are also used for structural and control reasons, a down going aileron increases wing twisting moment (Cmo) and can physically twist the wing leading edge down which gives the opposite effect of the intended control input and stresses the wing structure.

At high speeds only a very small roll spoiler deflection is needed, there is no lift dumping until they are above 30°, they are not used for this on the Cougar. The Panavia Tornado does have full-span roll spoilers that are also used as lift dumpers with weight on the wheels.

These were early days for use of this system and manufacturers often invented and used their own terminology which can be quite different to what we know today. Nimbus (Cumulus nimbus floats by) 09:42, 3 June 2025 (UTC)[reply]

Where you happy with the answer to your question at the McDonnell FH Phantom talk page? There was no reply. Nimbus (Cumulus nimbus floats by) 09:54, 3 June 2025 (UTC)[reply]