Ft Duster 137% upscaled

[Etienne]

Hi There
Anyone built a Duster upscale to 137%.
I am busy with a project in South Africa and I am using foam-x, apparently it is a bit heavy compared to the stuff Flight Test use, I think it might be stronger so I am making some lightening holes were I can.... Do you perhaps know how much all the cut parts should weigh for 137% before assembly, no electronics or motor etc.
Thank you
Etienne

 

[Matthewdupreez]

Hi There
Anyone built a Duster upscale to 137%.
I am busy with a project in South Africa and I am using foam-x, apparently it is a bit heavy compared to the stuff Flight Test use, I think it might be stronger so I am making some lightening holes were I can.... Do you perhaps know how much all the cut parts should weigh for 137% before assembly, no electronics or motor etc.
Thank you
Etienne

Another fellow South African!!!! You're the only other South African I've seen on here.. Since 2015... Welcome

 

[Matthewdupreez]

Well you'll want to multiply 1.37 x 1.37.. That'll give you how much more foam the plane will use... About 1.7 times more...
Then multiply 1.7 by the dry weight, and minus about 250grams.... That'll give you a rough guess... I don't have the dry weight with me, or I would. Have done it for you...

 

[Matthewdupreez]

Where are u based in sa?

 

[Etienne]

Where are u based in sa?

In Benoni
Thanx for the info

 

[Matthewdupreez]

im in magaliesburg... nice to find a fellow sa'er who's on the forums