The problem with dremel tool is it is just too hard to put it aside.

F1 former stock: 67gr or 2,36 oz
After it turned into a swiss cheese: 50gr or 1,76 oz
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Weight reduced: 17 gr, 0,6 oz (26%).

Oh, the fuz is slowly taking shape...


A though, perhaps I am going out too hard with this weightsaving idea? ...well, well at least it is fun.

So far I have narrowed the reductions down to:

Carbon fiber wing tube: 2oz
Contest balsa sheets: 10 oz
Fuz sides: 2 oz
Change to 15 light weight 1/4" balsa stringer: 1,65 oz
Fuz Bulk heads: 0,47 oz
F1 Bulk head: 0,6 oz
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Total weight reduction so far: 16,72 oz, or 1,05 lbs.