5pcs Assembly Black Plastic Prop Propeller 0947 for RC Model Airplane

okay we're getting ready to uh in this video to mount the prop and put on the spinner now in terms of the spinner you do have some choices of the brand and so forth i prefer the true turn aluminum spinners and there are several kinds this is the true turn two and a half inch spinner and it's got a little slot there uh two blade slot but it's a that's what it's called a standard slot okay and then others two and a half there's another two and a half here you can see how much wider that slot is that's the uh 120 slot but it's uh just a wide slot and then um then you also have here a two and three quarter inch spinner you can see that that one's slightly bigger and because it's slightly bigger the slot is slightly larger and so here's what you're gonna find if you take the two and a half and you take a like a 12 5 a okay a 12 5 uh apc blade won't fit that standard slot okay you take a 12 6