Several years ago I preparred eight new aircraft for the Mad Dawgs and new SWRA season. Included were two Keosho ARF 109's with throttled Q500 engines (anybody want to buy some humongous carbs

) and a Royal p-38 piped TT ,61's on 35% and a World ARF F-82.
The 109 Nelsons would have been competitive in Silver but the airframes were to draggy for Gold.
The P-38 at 45 ounce square foot was a snap roller on the hard pull at one and was unable to fly the course close enough to be competitive.
The F-82 with piped OS .61 FX's on 35% was faster than snot but was simply too weak and utimately died of a wing failure. This was despite coverting it to a single peice wing with considerable carbon fibre reinforcement and imobilization of the gear with a reasonable size struts and wheels that you could do more than two landings in a row on without repairs. Both tailwheels were moved to scale position.
At any rate that new season never happened and that was that.
John