[Public-List] Public-List Digest, Vol 4511, Issue 1

[gdinwiddie at alberg30.org]

On 6/19/24 5:07 PM, John Johnston via Public-List wrote:
> Isn’t the two blade prop based on being driven by an Atomic 4, or similar engine that has no gear reduction and therefore spins much faster?

The two-blades is to reduce drag while sailing, especially if you line 
up the prop with the keel.

The 7" pitch is for the faster turning prop shaft. For a diesel, you 
probably want a 10" pitch or so.

  - George

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