That's why I love this website. I've never heard of the The Tupolev ant-25. I could only search the specs of airplanes that I know of I guess I should've been more specific, but I was thinking biggest in length (fuse, span, height), not necessarily mass. I did find a reference to some large AG planes, but the ones I found were still smaller than the Caravan. Nice try with the skycrane, but I bet it has a wingspan (zero) that is much smaller than the rest of the craft. Thanks for the replies, I guess the Tupolev has it for now.