Original drawing released into the public domain by Pearson Scott Foresman. http://commons.wikimedia.org/wiki/File:Cloud_seeding_(PSF).jpg I figure it is an A-26 or something, but I don't know anything about planes, lol. I'm not too happy with the propellers... 螺旋桨 驱动 平面 螺旋桨驱动的飞机