I got a balsa Stearman P-T17 model kit from Guillows. This is my first balsa model and I have run into a snag.

Attached is a diagram of the directions that came with it.

1. is the left part of the wing as shown in the plans. this is basically what the plan looks like and what you are use as a real size guide when gluing the balsa together. make note of the rib shown here. as well as section A and section B. section B is a rectangular block of balsa, not a thin sheet.

2. is a side view of the rib shown in 1.

3. is a side view of the rib shown in 1 as it is attached to section A. notice that you must bend the wood upwards to insert in the groove of the rib.

the problem here is that since you have to bend section A upwards, its now not long enough to reach section B. but you have to bend A upwards to fit it in the groove of the rib.

am i doing something wrong? the directions weren't that good in this area. it basically just tells you to glue it according to the plans.