Scaling plans

Most any copying/printing shop can blow up or reduce plans. It's not cheap, but is the easiest/quickest way to get it done.

I'm trying to scale some plans for a long ez from a .40 to a 1.20 so I can use a gas engine. Anyone know a good way to do this?

engineering bulletin board asking for assistance ... you should be able to find a student with CAD abilities to put your plans into the CAD program and exactly scale them for print out ...

for you too ... and even cut the parts for you!

Well, I am scaling a .46 two stroke size Ballistick (54" wing) up to a 1.20 four stroke size (72" wing). Look around for other 1.20 size planes for a hint as to size.

engineering bulletin board asking for assistance ... you should be able to find a student with CAD abilities to put your plans into the CAD program and exactly scale them for print out ...

do that for you too ... and even cut the parts for you!

engineering bulletin board asking for assistance ... you should be able to find a student with CAD abilities to put your plans into the CAD program and exactly scale them for print out ...

that for you too ... and even cut the parts for you!

I've read that you can reduce plans and build a plane that flies ok.

But when you start enlarging 2x and 3x the flying characteristics can dramatically decrease.

If you scale everything up the same amount you will end up with a very heavy plane. Although size increases, you need to scale the wood parts proportionately less. If a plane has 1/8" fuselage sides and you double the size of the plane, you really DON'T need 1/4" thick sides!