Log of SV Free Spirit and ships company

The chronicles of the schooner Free Spirit and her crew, embarking on an open ended journey upon the great rolling heap. Free Spirit is currently pursuing humanitarian and commercial goals in the Dominican Republic, on the island of Hispaniola. Working under the Ocean Reach USA and Paradigm Research banners, she is serving as logistics headquarters, workshop, and development laboratory for many ongoing projects. This is the log of her journey.....

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Thursday, March 13, 2008

The Frisbetarian Wedding

We were blessed along with P'tit Louis, to host our first on board wedding. Our dear friends Leonard & Julie had a beautiful ceremony on February 14th. Nathalie went to town at the party store and chose a pirate / luau theme for the celebration.



The party and dance floor area, awaiting guests. It is amazing how clean the back deck looked while everything was hidden under a tarp an the cabin top!



The first guest arrive.... Deana, Leona, Chuck and our designated dinghy driver, Shep. As they boarded, the men were given plastic hook earrings and an eye patch, and the ladies received a very colorful lei.



The boys eagerly welcomed the guests and helped them with all the wonderful food brought aboard for the potluck dinner.



Another batch arrives.. Sandy, Dennis and Shep on the port; Darrin, Margaret and Matt of the Starboard.



Because Olivier is a pilot, he was chosen to perform the ceremony. It would appear that both Darrin and Drake were analyzing his choice in party attire. He was definitely dressed very festively for the occasion :-)



Blayde, Margaret and Darrin enjoying the partayyyy!!! By the end of the night, we had hosted 27 guests aboard the 2 boats.



I forget exactly what Olivier was explaining to Leonard in this photo, but I do know that it was really amuzing.



Julie, Leonard and Julie's son Dennis, thoroughly enjoying the idea of a frisbatarian wedding. They chose to each have a shackle earring put in place of wedding rings, and even those were brought to them on a decorated Frisbee.



Valin & Julie with Wolfgang in the background.



There went the garter... Way up on the bow!! Blayde ended up catching it, and has it hanging in his room.
Thanks to Leonard and & Julie for deciding to share their special day with us. We watched their love begin last February in the boat yard, and witnessed the progression of the engagement (they both got their ears pierced together). They are very special friends to us, and will always have a place in our hearts.

Best wishes, and safe passages to you both!!


posted by CT | 11:07 PM

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Introducing Propcalc 4.0

Use Propcalc to easily match your hull with your engine, transmission, and propeller
Put the known data in the top fields, then hit the Update button to get the answers.
Results, of course, should be verified by a Naval Architect or qualified surveyor.
Data is provided for three bladed propellers of average type
For two or four bladed props, use the modifiers shown below.

Fill out the fields as follows:

Vessel LWL (ft) = Waterline length
Vessel Disp (lbs) = Vessel displacement
(max) HP = Rated Engine Max HP
Engine RPM max = Engine RPM at Max HP
Engine RPM cruise = Desired or estimated cruise rpm
(Cruise or Max) Kts = Speed to work the calculations for
Slip = Propeller efficience. 45% is average for a displacement cruiser.
Gear ratio = 1: Gear ratio of transmission
SL Ratio Adj. = This value will be added (or subtracted, if a negative value) to the calculated S/L ratio.

Key information:

If the "hp required" is greater than the "cruse HP", you have your cruise RPM set too low for your engine parameters.
If the "hp required" is significantly less than the "cruse HP", you have your cruise RPM set too high for your engine parameters.
If the "hp required" is greater than the "Max HP", then your target speed is too high for your engine/hull parameters.
The S/L ratio is calculated automaticaly based on your input. It can be adjusted if necessary, but normally it should be left alone.
If the calculated S/L ratio exceeds S/L MAX, then the results are likely to be non-predictive. Try a lower speed requirement.
SL Ratios of 1.1 - 1.4 are typical of displacement hulls. Semiplaning or planing hulls can go higher.

Typical propeller slip values:

Sailing auxiliary, barges, etc less than 9 Kts............45%
Heavy powerboats, workboats 9 - 15 Kts....................26%
Powerboats, Lightweight Cruisers 15 - 30 Kts..............24%
High speed planing boats 30 - 45 Kts......................20%
V bottom race boats 45 - 90 Kts...........................10%


Note:

it is possible to get irrational answers by irrational input , I.E specifying excessive speed for hull type and length
Any attempt to exceed hull speed (1.34 times the square root of the waterline length in feet) with a displacement hull are likely
to fail unless the hull is extremely fine (multihull) or otherwise exceptional. In such cases, an S/L adjustment would be in order.

2 and 4 bladed props:


For two bladed propellers, multiply the diameter by 1.05, and the pitch by 1.01
For four bladed propellers, multiply the diameter by .94, and the pitch by .98
PROPCALC
  Inputs:
Vessel LWL (ft) =
Vessel Disp (lbs) =
  (max) HP =
  Engine RPM max =
  Engine RPM cruise =
  (Cruise or Max) Kts =
  Slip =
  Gear ratio = 1:
  SL Ratio Adj. =
   
    Solutions:
  Prop rpm max =
  Prop rpm cruise =
  Pitch =
  Diameter =
  Static Thrust =
  Cruise HP =
  Cruise HP% =
  SL Ratio =
  DL Ratio =
  SL Max =
  HP Required =