Will This Work???
I do not think an RCS 1.40 will be a good match for a Goldberg Super Chipmunk. It seems that a good .91 FS is what most people are flying in the CGM Super Chippie. The RCS 1.40 is about a pound heavier than a Saito .91 and about 1/2 a pound heavier than a YS .91. I also don't think you can swing a big enough prop for the RCS on that Chippie...
Just my 2 cents worth...
Cheers!
Galen