"Calpurnia" --The Vessel

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"Calpurnia" - Beneteau Oceanis 461

Official US Coast Guard Ship Number = 1089536
FCC Ship Radio Station Call Sign = WDC4392
MMSI Station Identity = 367023950
Amateur Radio License = KC0ZFB (General Operator Privileges)

Specifications:
    • Designer:....Bruce Farr
    • Year Built:...2000
    • LOA:....46' 7"
    • LWL:....39'11"
    • Beam:....13'11"
    • Ballast:....7,496 lbs.
    • Displacement:....20,950 lbs.
    • Draft:....WB....5'9"
    • SA(sq.ft.):....Main & Jib..1,017

 

 

 

 

 

 

 

 

 

 

 

I spent along time looking for the most boat I could buy.  I tried very hard to find a used Beneteau 50 to purchase, but they either were $300 grand or a stripped down 4 cabin version used by the Moorings.  I feel I got the biggest boat that I could afford and still have enough money left over to install the things I thought I needed.  Short of finding more money, I would buy the same boat again.

 

 

 

 

 

Existing Equipment on the boat:

Things I purchased or added to the boat:

What is the transmission line loss for coax? This depends on the amount, as well as the type of coax used. On the average, 50 feet of RG-58 coax will have about 3dB loss, 50 feet of RG-8X coax will have about 2dB loss, and 50 feet of RG-213 (RG-8U) will have about 1dB loss.

Calculation for Range of an Antenna

Square Root of Height (in feet) above water x 1.42 = Range in miles 
Remember to perform the calculation for BOTH vessels, and then add the results for the range between two vessels.


 

 

 

 

Things I would like to purchase:

Things I don't think I need:

 

Advice from others who have a MaxProp:

"My 461 has a 3 blade 19" MaxProp. I have the Westerbeke 63C engine. My calculations and PYI's calcualtions matched at a 20 degree pitch for the propeller. This is also the pitch used with success by 461 boats with the slightly larger Yanmar engine, so it seemed to be a reasonable starting point.  My experience found that it was too steep, the engine could not reach maximum RPM. At haulout I will be decreasing the pitch to the next setting."