This directory includes all of the plans that are specifically designed for stitch and glue construction. the rc model x-1 is an inexpensive way to try out this. What is lapstitch construction? clc’s exclusive lapstitch™ construction . patent no. 6,142,093 . the strength of the lapstitch™ joint is such that the designs. At hobbies we are now offering 10% off all revell, tamiya, trumpeter and zvezda plastic models kits, plus we stock airfix, italeri, merit models, roden, emhar, afv.