Beats me, I'll take a look------yes, 90 degree rotating. its in the fine print between the large photos. It says it can be fitted, I don't know if the linkage is already in it or what. Why don't you try and ask in a separate thread titled Nitro Spit and see who has one. I set up a couple planes for friends with the rotating. The bellcranks are the area to get right. I even Installed an access door on them to make it easier to fix problems