just got home and went out to the hanger and checked I found out that my OS60 will not fit inside the front of the fuse ends so it is out . so now I need to figure out what will fit and what to purchase for my extra as far as an engine so it may have to wait for awhile as I have so many irons in the fire right now .... hobby shop called and told me end of the month for my carbon z cub that is on preorder and my new edge 540t is just about ready to fly as well sure would like to have the extra ready for spring we will see as time will tell