Cjsangster
Member
- Joined
- Feb 13, 2018
- Messages
- 11
- Location
- United States
- Vessel Name
- Shama Lama
- Vessel Make
- Atlantic 44
What are pros/cons for single vs twin diesel engines?
What are pros/cons for single vs twin diesel engines?
So what boat are you asking about? IMHO, this is the real question.
A jog lever would be nice in that I could quickly and easily give hard port rudder and a small shot of power to kick the stern to starboard. It takes way too long to turn the wheel by hand in that situation. A twin would make this a non-issue.
Coming from past boats that were twins, I was thinking the same thing. A thread occurred a few months ago on this. I did some research on it, and it didn't seem very practical but I have not given up on the idea.
I do wish I had a jog lever connected to my AP for use in close quarters maneuvering. There are times when backing out of my slip it would be nice. I have to back out to starboard, but my boat likes to back to port. The fairway isn't as wide as the diagonal distance of my boat (anchor to port edge of dinghy mounted on the swim step.
A jog lever would be nice in that I could quickly and easily give hard port rudder and a small shot of power to kick the stern to starboard. It takes way too long to turn the wheel by hand in that situation. A twin would make this a non-issue.
Dave:
If I understand your post correctly, you are leaving your rudder at hard over to Starboard and backing against a Port pulling Prop walk. In using your rudder at all in reverse, you are counting on getting enough water against the Port side of the rudder to influence your sternwards direction. I learned on my sailboats that this is futile. Your stern will go where it likes, influenced far more by propwalk than by the rudder. So set your rudder at hard over to Port, then back up. You will find that your "to Port" rate of turning has not increased over being hard over to Starboard AND you now have your rudder set to allow a burst of forward power to straighten out your direction of travel, or even to turn you to port, the direction you actually want to go.
You may have been describing something else altogether, in which case please take no offense for my presumtions.
I've come back on a single twice (not counting military service) in 55 years, but I ran the most reliable 100% mechanical marine engines made (opinion).
"One of the biggest failure causes is fuel so"
That is why the "day" tank concept works so well.
The fuel can be dewatered , spun, filtered , and finally left standing so the fuel taken out higher up in the tank is usually clean enough.
A high mounted day tank can gravity feed the engine , solving another whole bunch of problems.
Nothing is perfect , but clean fuel can be done , although its easiest with a boat built for the concept.