Luckily I have a 12x6 here!

I am just checking CofG.
It is ballencing at the manual's stated 3.5" (8.9cm) but with a slight nose down attitude...
So i'll also work to make it more level....


Just noticed current prop is 11x7..
CofG, I've also retested....

I had a flight nose down angle at the c/g on the jig.. so I started moving the plane back on the jig to see what distance there as between the plane balancing level and the marker for the LE..
Well it turned out to be well over 1cm.. not quite 2cm's
manuals sated Margin for c/g is 1cm......

These 2 things might just fix this problem!
Now if only I had some fuel left ot test tomorrow