The doors on this aircraft are unmatched in any other light aircraft for visibility and ease of operation. The stock Pacer has no door on the pilot side. With this mod, a door is fitted to both sides. The new doors are perspex all over, and hinge from the top with gas struts to hold them up. They are super simple to operate, and can be opened in flight which makes for lots of fun when cruising up the river on a summers day looking for fishing spots!