Neither is correct , the p51 is too invisible not enough light glinting off it from different angles , the spit prop is make believe , far too visible , once a prop is above about 1000rpm they a more or less invisible , thats why they a lethal to ground staff, in fact now that I think about it they are still dangerous even when the engine is not running , believe me i have the scars on my forehead to prove it:thumbup: