<p><b>The aerial clashes between the iconic Corsair and Zero-sen translated into a contest of speed and altitude for the former, versus the latter''s outstanding agility and range.</b><br><br>Whilst the F4U Corsair eventually proved to be a superior fighter in Pacific operations, its introduction into combat in this theatre initially demonstrated its weaknesses. Indeed, the ''Saint Valentine''s Day Massacre'' debacle showcased exemplary Zero-sen fighter tactics, and American losses were of sufficient magnitude that further daylight missions toward Bougainville were discontinued until Allied fighter tactics could be improved. As a result, for the next two months the Corsair''s combat results were much subdued. Indeed, the F4U only became a superb fighter when both its pilots and their commanders worked out how to deploy the gull-wing design effectively. Optimum circumstances for effective engagement did not always occur, and the Zero-sen remained effective against the Corsair until Febr