Time for a larger version of the Sbach. Everyone says bigger is better so we will see how it works out. Not a lot of 65 size slabs out there, Mojo65 and the OMP 67" Fusion and 65" Yak. Do not know why, perhaps anyone considering a bird this big would just as soon go up to the quarter scale fatties. This is going to be my winter works project so progress will be slow compared to my previous builds, also I am going to be a lot more detailed in this build.
Design
I scaled the 45 up to 65 size then increased the span and aspect ratio and thinned the wing to keep it from getting too floaty. Larger airplanes are inherently more stable so I have made the wing span longer than the fuse total length. While the span to length ratio is more the tail moment arm is the same, by doing this I am hoping to get the smoothness of the 55 and the tumbleness of the 45 in one package.
I am expecting to have the total all up weight to come out at less than 8 lbs. At least that will be my goal.
Specs:
Wing Span ----- 65.0 in
Wing area ----- 1250 sq in or 8.7 sq ft
Length -------- 63.5 in
Flying weight - 7½ - 8 lbs
Wing loading -- 14 - 15 oz sq ft
Design
I scaled the 45 up to 65 size then increased the span and aspect ratio and thinned the wing to keep it from getting too floaty. Larger airplanes are inherently more stable so I have made the wing span longer than the fuse total length. While the span to length ratio is more the tail moment arm is the same, by doing this I am hoping to get the smoothness of the 55 and the tumbleness of the 45 in one package.
I am expecting to have the total all up weight to come out at less than 8 lbs. At least that will be my goal.
Specs:
Wing Span ----- 65.0 in
Wing area ----- 1250 sq in or 8.7 sq ft
Length -------- 63.5 in
Flying weight - 7½ - 8 lbs
Wing loading -- 14 - 15 oz sq ft
