for starters i only weigh 118 lbs....so a J-3 is pretty useful for me.
some of the modifications are...
upgrading wing and gear attach point to super cub specs
replacing some mild steel with 4130 in certain areas
heavy duty struts
aluminum spars
13 rib wings + a 1 inch extension on each wing
PA-11 frame upgrade
150 hp nose structure upgrade
scratch built seats with lots of adjustment.
removable front seat frame
modified elevator routing
2 inches wider rear seat
heavy duty tail wheel strcturture
twin 18's with left right both selector and a 2 gallon header
3 part boot cowl
paper gross is 1320 for LSA purposes.
vne 138mph
fast cruise on a cool day=90mph 6.5gph 2600rpm
economy cruise= 70mph 4.5gph 23000rpm
max endurance=60 mph 4 gph2100rpm
max climb rate=900fpm
climb at 1320 lbs=400fpm


