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Old 06-03-2012, 21:46   #31
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Re: The Canaries To Australia In A Power Boat?

I'm outta here, but had to correct one thing; the Lehmans were 120 h.p. each. Not for nuttin', JLS
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Old 06-03-2012, 23:57   #32
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Re: The Canaries To Australia In A Power Boat?

Quote:
Originally Posted by stevensuf View Post
Going slow youd get about 5mpg on diesel, say about 5-6 knots,it would be good as well if you could trim the legs independently to reduce drag, ie run one engine at a time.

(these figures are for diesels)
And what happens if you try to run a twin screw boat on only one engine? - it wants to go in circles and you have to fight the wheel continuously to try and maintain a somewhat straight coure - this is not an option in passagemaking and would only be appropriate if you have lost an engine due to mechanical problems and need to limp to port.
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Old 07-03-2012, 03:14   #33
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Re: The Canaries To Australia In A Power Boat?

I meant at trawling displacement speeds not trying to plane. plenty of cats run on single engines at displacement speeds...... never mind monos.
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Old 07-03-2012, 07:17   #34
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Re: The Canaries To Australia In A Power Boat?

I used to run my 1960 32' Chris Craft Connie w/ Corvette Ns on one engine at 5-6 kn all day with just a little rudder on her and sippin' gas(the boat, not me). At full throttles, her nine tons would come up on plane and she'd do about 30, with the fuel gauge needles sinking like a lead weight.
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