hey jdp8488 you first need to cut four 17 1/2 " long peices out two of the 1/2 x 1/4 x 36" peices. then glue them to one end of the four 1/2x1/4 x 36" pieces. those will make your main spars.. the 1/4 x 1/4 x36" are your rear spars.... look at all of your ribs they are numberd w1 thru w5 ...... lay them all out and look how they spar will lay out you will see it

i pinned mine down to the plans on a big peice of thick foam and i looked just like the pic in the instruction book


hoped this helped .... if not let me know ...... also i am building a four star .60 to.... check out the thread i started and you will see some pics there