The US Navy received its first production F4U-1 on 31 July 1942, with carrier trials beginning on the USS SANGAMON on 25 September 1942. Getting the machine into service proved difficult. The framed "birdcage" style canopy provided inadequate visibility for deck taxiing, a serious concern given the kind of damage the oversize prop could do to anybody or anything that got in its way. Even more seriously, the machine had a nasty tendency to "bounce" on touchdown, which could cause it to miss the arresting hook and slam into the crash barrier, or even go out of control. The long "hose nose" visibility problem has already been mentioned, and there was the inevitable issue of the enormous torque of the Double Wasp: if a pilot was waved off a carrier landing, he would throttle up and bank off to the left for another pass, and the Corsair had a nasty tendency to flip over on its back if revved up incautiously. Yet another peculiarity was that, due to propwash effects, the left wing would stall before the right on the landing approach, which tended to make the aircraft roll to the left as well.

LINK -- http://www.axis-and-allies-paintworks.com/e107_plugins/forum/forum_viewtopic.php?4388