On raw performance the Zero should have swept the Wildcat from the sky: it was lighter, climbed and turned better and had far greater range. But the Zero bought that agility by leaving out armour and self-sealing tanks, so a short burst from the Wildcat’s six .50-calibre Brownings could set it ablaze. The Wildcat, by contrast, was built to come home — armour behind the pilot, protected tanks and a rugged structure meant it soaked up hits that would have destroyed a lighter fighter.

US pilots learned not to dogfight the Zero on its own terms. They dived, used height and speed, fought in pairs and refused the turning duel — and above all used the Thach Weave (see below). The result, by the end of 1942, was a claimed kill ratio the US Navy put as high as roughly nine to one in some accounts; across the whole war the type is commonly credited with a positive overall ratio near 6.9 : 1. Treat the precise figures as claims — wartime tallies are always contested — but the direction is not in doubt.

The Wildcat inherited a narrow-track main undercarriage that retracted into the fuselage — and in the F4F it was raised and lowered by hand. The pilot cranked a wheel roughly thirty turns after take-off, a chore that could make the aircraft porpoise as he worked, and a slip of the hand could spin the crank back painfully. The narrow track also made the Wildcat a handful on deck and prone to ground loops. It was a genuine weakness — but hydraulic gear of the day was seen as more vulnerable to battle damage, and the manual system was simple and hard to knock out.

From the F4F-4, Leroy Grumman’s engineers gave the Wildcat the Sto-Wing — a clever skewed-axis hinge that let the wings rotate and fold flat back along the fuselage, “like a bird’s wing.” Folded Wildcats took up far less deck and hangar space, roughly doubling the number of fighters a carrier could embark. The same folding principle was carried into the later Hellcat and survives today on the Navy’s E-2 Hawkeye. The F4F-4 also added a sixth gun and armour, at some cost in agility — a trade-off many pilots grumbled about.

The Wildcat was a mass-produced wartime aircraft, not an item sold on any open market, so a precise flyaway price is elusive. Contemporary US Navy fighters of its class were procured for very roughly US$30,000–40,000 apiece in early-1940s dollars — an order-of-magnitude figure, not an audited unit cost, and one that fell as production scaled up. No meaningful modern cost-per-flight-hour figure exists for an out-of-service piston fighter; today only a handful of airworthy FM-2 and F4F warbirds fly, at collector-aircraft running costs. Treat any exact dollar figure attached to the Wildcat as an estimate.