there are references in the nacra manual to the beam straps being different lengths from front to back. but it's possible you have a short where you need a long

as the manuals often cover 6 models i haven't quite worked out if the 5.2's straps are all the same length or not. if not they must be very close

during my winter pull down i will lay a bit of paper over the contours of the free straps and mark their lengths to check

a minor trainspotters detail on the mast rotators is that you can see from above that airborne's 5.2, (2410), arm has been formed smoothly from 1 bit of stainless and then a small section welded in to form a large vertical hole for the rotator control line. this is the style you see for sale from murrays etc, but the rotator arm on mine (2158), has been made of 2 bits of stainless crimped together with a small horizontal hole holding a shackle and a small pulley for the control line

very nice work on your barber haulers airborne, think our lake is too small and i'll be too busy solo to bother with them, spins or hooters