Quote:
Originally Posted by numbskull
Provided the engine is trimmed correctly, I would consider a different prop with less pitch and larger blades (or more blades).
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Bingo! we have a winner!
You have the wrong prop. Prop selection is a compromise that allows for decent low mid range performance with near peak at cruise. If you are far off it will not even plane. For example, many big boats with twin outboards (or inboards) can not plane on one engine because the props are selected assuming the other engine is operating, take it away and the single prop cant even push the boat on plane. (hence the "need" for trips and quads in those go fast tournamnt boats)