Next message: Joe Engel: "TWL: RE: RE: New Passagemaker Mag"
Anecdotal evidence abounds around the religious wars between single and twin
engine fans. Here's some actual metrics for this year on my twin Lehman
120s... Displacement is 45,000 lbs (it's my home). My guesstimate of the
delta between single and twins would be 4 GPH on the single vs. 6 GPH for
the twins, but that's not the whole story.
There are a number of reasons why twins make sense for me:
1. Backup, I blew a velvet drive off the coast of Georgia last year and got
in on the other engine
2. Efficiency, two 125 amp alternators pounding juice into the house bank
and windlass bank
3. Diagnosis, with 2 engines and an optical thermometer you can take a
baseline on both engines and find anomalies before they turn into problems
4. Maneuvering, easy for a single hander
5. Mass, I had a single engine 40' sedan and was scared a lot. My twins are
a lot of weight (1,100 lbs each) down low and I've never been scared in this
boat.
6. I'm stupid, when I take one engine apart; I've got the other so I can
figure out how to put it back together correctly.
Your mileage may vary...
DATE PPG Gal. Cost Meter Hours GPH Miles
MPG Cost/Mile
12/8/2003 $1.330 368.11 $489.66 5766.6 56.10 6.56
496.60 1.35 $0.99
10/10/2003 $1.100 352.80 $388.08 5710.5 56.00 6.30
522.00 1.48 $0.74
10/4/2003 $1.099 411.50 $452.24 5654.5 68.30 6.02
668.70 1.63 $0.68
9/19/2003 $1.050 247.60 $259.98 5586.2 37.20 6.66
315.90 1.28 $0.82
7/25/2003 $1.189 441.90 $525.42 5549.0 71.20 6.21
627.30 1.42 $0.84
6/18/2003 $1.220 143.64 $175.23 5477.8 22.90 6.27
212.20 1.48 $0.83
6/9/2003 $1.184 144.00 $170.48 5454.9 21.50 6.70
198.00 1.38 $0.86
6/7/2003 $0.949 410.50 $389.56 5433.4 74.20 5.53
596.40 1.45 $0.65
5/13/2003 $1.362 436.10 $594.05 5372.0 71.30 6.12
612.40 1.40 $0.97
2/18/2003 $1.559 304.20 $474.24 5300.7 63.10 4.82
534.30 1.76 $0.89
TOTAL 2003 3260.35 $3,918.94 541.8 6.02
4783.80
Regards...
Phil Rosch
Old Harbor Consulting
M/V Curmudgeon MT-44TC
Currently moored in Boot Key Harbor, Marathon, FL.
_______________________________________________
http://lists.samurai.com/mailman/listinfo/trawler-world-list
To Unsubscribe send email to
Include the word "Unsubscribe" (and nothing else) in the subject or body of the message.
