Originally Posted by
acdii
What scale is the CG kit? I want to upsize it to use a 100CC engine. Unless someone knows of plans for 100CC size. It also looks like Seagull has an ARF version which looks a lot like the CG version. I agree this is a nice flying plane, as long as the engine is running.
Real Ultimate 10 Dash wingspan:
19 ft 6 in (from Wikipedia)
Carl Goldberg Ultimate 10-300 wingspan: 54 in (Scale calculation: 234/54 = 4.33, then scale is 1:4.33)
For a 100cc ize engine you should go to 1:3 scale (78 in wingspan), but you shouldn´t simply upsise the plans as sure some reinforcements and solutions are not adequate for a such large version.
Best Regards.