I am building a World Models Rambler ARF...The instrux show sliding the horizontal stab thru the fuselage after you cut out the covering. The hole is not big enough for the stab to slide through. I assume I have to cut some of the wood block either aft or forward of the pre-cut hole in the fuse.

If so, how do you make the cut? Principally, I can see how to cut horizontally with a hand saw, but how do you make the vertical cut clean when I only have access from one side? Is there some common ARF trick I just don't know about here?

Thanks in advance,

Chris Barley,
Orlando, FL