when hovering or doing 3d you need a low picth prop. or you will have air cavitation which basicly means you are no longer produceing trust no trust no lift no lift no plane. the 46 would be hard to find the correct prop your best bet is the APC 12.25x3.75 (which still inst great for 3d). with a 60 sized moter you could do it with a apc 12x4w(w=wide). with that setup i thinkin you will be 3/4 throttle to hover