Me also use a 4ftx6ft trailer have wing shelvs built in to hold wings. I can carry up to 7 planes very easily. Although I don't. Usually 4 that is all the wing saddles i have made. The small trailer is also a very good storage place for when not flying. One day my buddy and myself were installing the wing shelves and had three planes and my equip, in it he said i had better get good lock for it. Next morning I had been working on it myself when he came over and had the doors open and making places to hang stuff. He looked inside and asked what i had done with the planes. I fell over beside myself I had been working on it for an hour and just did not notice my planes and equip, was gone. I ran inside and grabbed the phone for the police and walked back out while dialing. He was walking off laughing. Opened his picup door and there my stuff was. He said you think about them locks now. I could have killed him. I had already told my wife someone had stolen everything. So no matter what you put them in make sure they are locked up lol.