The university heavy lift team designs they're aircraft to run with a plus 1 to 2 degrees on the main wing to aid in a smooth take off and landing. They lift upwards of 20 lbs of weight with a .65 engine. Here is a video of my heavy lift design limited to 1000 square inches and a OS .61 two stroke. No ailerons but spoilerons for roll control and + 1 degree when thrust line and elevator is at 0 degrees fully loaded with over 20 lbs of lead. Mine is the last plane. Large bounce on landing didn't flair soon enough LOL. Starts at 2:11
2011 University of Windsor maiden flight 14 ft span heavy lifter empty short take off a little to much elevator input for an empty configuration. the heavier it got the smoother the take off. Finished 2'd overall that year starts 1:40