You can also click the Add layer mask icon at the bottom of the Layers panel (which, by default, selects Reveal All). Note that if you already have a layer mask on the layer, this icon will change to Add vector mask. Or you can click the Add a Layer Mask icon in the Properties panel.
The top American ace of all time, the U.S. Ace of Aces was Richard Ira Bong. He shot down 40 Japanese planes in the Pacific. Over the years, there's been a lot of ink spilled about the relative scores of German and American aces. 27 Americans shot down over 20 enemy planes.
The planes that ruled the skies. With the help of some aviation experts and warplane veterans, PM took a look back over the history of single-engine planes, fighters, bombers and attack helicopters. We picked six of the most lethal fliers of the past 100 years, based on their dominance during the years they flew. Advertisement - Continue Reading Below.