hello john
the problem is your center of gravity
i have took a guess and put it in at 42"
so put the following numbers into sd and it will get you going
but get your weighing schedule for the right numbers
fuel measurement by volume litres
fuel tanks lever arm 24.3 tabs 200 ltr capacity 340 ltr
weight and balance model standard
empty weight 1049.0 kg
c of g 42"
loading points
pilot 37.00 0kg
co pilot 37.00 0kg
center seat lh 70.00 0kg
center seat rh 70.00 0kg
aft seat lh 96.00 0kg
aft seat rh 96.00 0kg
baggage forward 127.00 0kg
baggage rear 145.00 0kg
envelope 33,1049 33,1133 42,1639 50,1639 50,1049
as i said weight schedule and poh is master
but this will get you going
enjoy
tony