I am in search of a large airframe that can support a range of electronics and sensors. I was hoping to get something that had a payload capacity in the range of 10-20lbs. Does anyone have any suggestions?

Thanks!

no, but i have an idea. try getting a trussel-frame plane. they come sometimes with 80 inch wingspans but only require 40 size engines. order another wing, and put it on. maybe re-inforce the airframe, don't use cowls, wheel pants, no heavy spinners.

Something like a telemaster would probably take that. Something huge like that or a giant ugly stik has a lot of room in it.