Was in my local hobby shop recently. An older RC guy came in seeking help setting up his radio on a big (74") semi-scale P-38 with twin K&B 61's. Very pretty plane. A fraction under 700sq in. Retracts, flaps, 8ch system, etc.
I asked if he had flown it, he said no but was hoping to this weekend. Cool. I asked about weight....... he said he had REDUCED the weight to 21.5 lbs!!! 4.5lbs per sq ft.
It's pretty, but I hope he has a long runway.
Gary