[PSUBS-MAILIST] prop size

[hank pronk]

I have a two part question,
Is it beneficial to increase my propeller size to increase efficiency.  I was under the impression from my boating days that a large slow prop is more fuel efficient.  It should increase battery range and slow down the shaft speed, helping the seal.
I have a much larger prop left over from boating and I am thinking of using it on Gamma
The next question is,,, is there anyone here with the ability to calculate the new rpm for my given prop size and motor hp.
Hank

From: Jon Wallace <jonw at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
Sent: Wednesday, September 4, 2013 6:18:15 AM
Subject: [PSUBS-MAILIST] There's gold in them-thar waters



http://www.usatoday.com/story/news/nation/2013/09/03/florida-family-gold/2757357/
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