Ken - What would you estimate that your "average" engine rpm would have been for this 2200 hours? "Kenneth S.

I've estimated, based on some information gleaned from the list, that running my engine (rated for 120 hp) in this way, and using 2+ gallons per hour, means I'm only using 30-40 hp. This doesn't seem like it qualifies as 'severe service.'

Repair cost is estimated at $650 plus. The replacement Norcold is a DE-461 (6.3 cu ft) and it will run about $1,000. I am trying to figure out why the Norcold is so expensive. I am wondering if it would pay to buy a regular residential refrigerator and an inverter.

Before Soltron - at cruise 785 -795 F ( Engine RPM not given ) With Soltron at cruise 715 - 725 F " " " " ( I think that might be regarded as a signficant drop ) Also reported in same testimonial were 6 % increase in cruise speed and estimated 90 % decrease in smoke at startup and W.O.T. ..

The BC tests estimated 50% prop efficiency. Our calculations show that the N40 prop is running slightly greater than 35% efficiency at 1400 rpm. This makes a pretty good case for a CPP on circumnavigations. Also a good case for actual sea trials before starting the publicity engines. Larry Z

Who does this for props now, an do you have any $$ estimates? It's a pretty simple process. If they're charging a lot, maybe I'll invest in a tank and rectifier! -- __________________ Keith A person who smiles in the face of adversity probably has a scapegoat.

My two remaining problems are (1), estimating where the water line will be, however I can make the sea chest way tall and cut it shorter if necessary once in the water. And (2), convincing the Admiral that I really do need to cut a 12" hole in the bottom of the boat. I'm still working on #2! Thanks again, you are the greatest!

Still, by keeping track of engine hours, > we can estimate the fuel useage within a 10% range without trouble. > > Larry Z You're right Larry! Just a bit of time cruising at optimum engine speeds (yes, I meant speeds) lets you get a pretty accurate handle on fuel usage.

I didn't discover it until about 8 engine hours after I estimate it happened. After draining the contaminated ATF, I flushed the tranny several times with clean ATF by filling it until it overflow, then opening the lower hose fitting and letting all the fluid drain into a pan.

But seriously folks, I estimate the cost of all my boat nonexpendables (mooring fees, winter storage, insurance, maintenance and repair, bottom paint, licenses and fees, etc.) as between 10% and15% of the boat's value per year. Expensive new equipment is omitted. I simply add this on to the boat's value.