I built the primary build of 31109 3-in-1 Pirate Ship. What a fun build! It had me guessing the whole way through. The engineering of the set is top notch. I love the way it is constructed. It surprised me that the bags were numbered 1 through 9. I rather enjoyed the bagged piece approach for the primary build. I’m looking forward to building the other two builds. My eventual goal is to put this as the center piece of a MOC roller coaster, using two Pirate Coasters for the surrounding elements. I have the track laid out. Now I need to test place the ship and start plotting how it’s all going to work. Here are the pics!