Scorpiomikey:
Not to be argumentative, but this photo is NOT a Cougar. It is Grumman's XF10F Jaguar, a one-of-a-kind prototype intended to introduce the swing-wing concept to the Navy. It had too many unsolvable problems and was cancelled before it went into production. After 32 test flights, several near disasters, the prototype and one partially finished model were shipped to the Naval Material Center in Philadelphia for barricade testing. Corwin "Corky" Meyer, Grumman's chief test pilot of that era said it had the most viscious spin characteristics of any airplane he had ever flown.
Darwin, O.F.