21. ShinMaywa also produces wing spars for the Boeing 787. 22. The landing gear was attached by struts to both the fuselage, and the wing spar . 23. The aircraft is made from wood, with judicious use of composites, including for the wing spar . 24. Pairs of interplane struts leaned outwards and diverged toward the more widely separated upper wing spars . 25. Behind the spar the wing was spoilers hinged on the wing spar at about quarter span. 26. An aluminum wing spar with hinges allows the wings to be folded for trailering or storage. 27. The wing spars were duralumin structures, though the first of the two Mussels had spruce ribs. 28. A wooden wing spar configuration gives the plane a lighter weight, but leaves the wings fixed. 29. Pairs of V-shaped lift struts ran from the lower fuselage longerons to the two wing spars . 30. The crash in Australia allowed investigators to find the cause of in-flight disintegration, a failed wing spar .
