I think I get what you mean, but when I look at the pics, it still seems like there could be a lot of vacuum behind the nose cone if they trimmed out with any real downward angle, no?
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Either way, do we know how it is with drives like these speedmasters?
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And in general, do we know how much down-angle props shafts usually end up trimmed to? And do we know if cav plates are parallel to the prop shaft?