[Public-list] 10hp Diesel?

[Mike Lehman]

If you look at the performance curve of an Atomic 4 running at 1400 RPM, you 
will notice that, at that speed, the output is about 10 HP. A couple of 
things to note - #1. the Atomic 4 is running at 1:1 which means 1400 RPM at 
the engine is 1400 at the prop. Ususally diesel engines have a 2:1 reduction 
gear, so to get 1400 RPM prop speed you need to run the engine at 2800 RPM. 
This will give you 5-6 knts of boat speed. #2. On most diesels it is 
recommended to run at 75-80% of full throttle which would give you about 7-8 
HP effectively. Depending on how you use your boat this may be a bit 
underpowered.



Mike Lehman
~~~_/)_/)~~_/)~~~




----Original Message Follows----
From: Derrick Serrer <cptn_derrick at yahoo.ca>
Reply-To: Alberg 30 Public List -- open to all 
<public-list at lists.alberg30.org>
To: Alberg 30 Public List -- open to all <public-list at lists.alberg30.org>
Subject: [Public-list] 10hp Diesel?
Date: Wed, 13 Jun 2007 13:45:43 -0400 (EDT)

I have recently purchased an A30 that does not have an inboard engine. There 
is a 10hp Volvo deisel for sale in my area. Any comments on wether or not 10 
horses is enough?
   Thanks
   Derrick




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