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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Monday, November 13, 2006

Arizona, and also, cheesesteak.

So, here we are, out in the Arizona Desert, with the van half apart. We've got a really bad miss in a couple of the cylinders, and are working on getting it sorted out. Hopefully it will turn out to be ignition related (cheap) not fuel injection related (expensive). We will soon know - wish us luck.

So there we were in the middle of the Arizona desert surrounded by beautiful red rock formations, incredible weather, and a town for parts only 8 miles away. With the impending doom and dread of doing the fuel injectors (3 days work) ahead of us... Tamer and I are sitting in the dark van discussing our various options, and I ask, "Can spark plug wires go bad just a couple at a time"? Hmmmm..... What we discovered after turning off all the interior lights with the console removed to expose the engine, was............... If after starting the engine, there are lots and lots of little dancing lights along both sides of the motor, you MAY need new spark plug wires!!!


So far so good - looks like ignition, as it seems to be running fine now with new plugs, cap, rotor, and wires. (knock on wood) To make this more fun, I should remind our kind readers that the vehicle in question is a van, which makes servicing it really entertaining. To get to the sparkplugs, the wheel and fenderliner must be removed. To get to the distributor requires 1/2 hour of interior disassembly, and even then a contortionists merit badge would be a great asset. On top of this, Ive been really sick last night and today, 103+ fever, etc. And did I mention that last night a pipe broke in the trailer and pumped much of our already dwindling supply all over everything? Well, its been fun, to say the least, but laura helps me to keep things in perspective, by reminding me that this is excellent preparation for our high seas adventure. Unfortunately, if memory serves, she's right on about that one. C'est la vie.

Lots of room here....

The back two (#7,8) plugs were reached here.

The other six plugs were reached through the wheel well. Blayde and Valin were big helps, both of them removing and replacing most of the plugs themselves.

On another note... why is it that the only decent cheesesteak sandwich I can find is in Fairbanks, Alaska? Chad bought be dinner at the Oasis there in Fairbanks when I came through on my seven hour tour last month, and I got a big, juicy, yummy, dripping with goopy goodness cheesesteak -thank you Chad. It was in stark contrast to what I get when I order one down here, usually some half dry steak strips and a bit of melted cheese with some bell peppers. What is it with Fairbanks and cheesesteaks? Was it Big Bob of pre- Food Factory fame that did it in the early eighties? if anyone can help me crack the riddle, let me know.


Blogger Sherron Herring said...

OK - so scare me! 5 degrees? Too high - get it down. Maybe 1/4 teaspoon salt in a quart of water, and drink it all!! Be wary of heat stroke, w/dehydration & - Anything past 5 degrees is a bad, bad thing. Now drink lots, (water)and often to keep this bad thing away. And find shade. Think I'll call you. Just the usual concerned medic mom.

2:49 AM  

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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%


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

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. =
  Prop rpm max =
  Prop rpm cruise =
  Pitch =
  Diameter =
  Static Thrust =
  Cruise HP =
  Cruise HP% =
  SL Ratio =
  DL Ratio =
  SL Max =
  HP Required =