The Atlantic crossed non-stop

Alcock and Brown flew a converted bomber from Newfoundland to Ireland in sixteen and a half hours and landed nose-down in a bog they had mistaken for a field.

They had no radio for most of it, iced up repeatedly, and Brown navigated by sextant on the few occasions he could see anything. It was eight years before Lindbergh and is much less famous, largely because they did it two at a time and landed badly.