While building my four star I was in a rush to get the last part done for the inght and I accidentaly snaped one of my ribs in my wing. I was thinking if I shortend the wings by one rib each how much owuld it matteR? please help thanxs

Lots of guys cut one or two bays of each wing. One bayincreases the roll rate and it still lands SLOW, two bays really increase the roll rate but now you need to land faster since the wing area has be cut by almost 20%

so if i did cut one rib from each side it would stilll be suitable for a second plane?

One rib bay shorter? Shouldn't be a problem for a second plane.... of course, the other way of looking at it is, can the rib be glued back together and used anyway? Do you have a rib you can use as a template?...it would be pretty easy to cut one rib from a sheet of balsa.

That's right, chop off the first rib but cut it back to the second rib (flush with it). As stated you could always build another rib, then fly it and chop the whole bay off later and recover.

If you are a little confused then look at it like this.

Say you crushed the very last rib (wingtip) and instead of repairing it you just want to remove it. No problem, grab your saw and cut off the section of the wing back to but not including the second rib from the wingtip making sure to cut it as flush as possible. Then sand any left over spar, sheeting (if you sheeted the wing) and the second rib from the original wingtip now becomes the wingtip. I would suggest sheeting the wing from the leading edge back to the spar on both the upper and lower wing, but it is not needed. You will add some weight to the plane but the wing will be much stronger