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Old 14 June 2011, 10:12   #11
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That is good info. Would you consider it be worthwhile to bring a folded-in-bag Torqueedo along in the SIB as emergency propulsion in the case that the main outboard becomes inoperable? Would it have enough propulsion to get a SIB back to shore against a current from a mile or so out?
A small 4-stroke Honda 2.3hp (air-cooled) or 2-stroke Tohatsu 3.5hp auxilliary engine (both around 13kgs) would be the way to go. Forget electric, unless it was for use on a reservoir for example, where outboards wouldn't be permitted. For example: Reservoirs to Lease near Glasgow | Loch Arklet Reservoir | land agent in Glasgow
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Old 14 June 2011, 11:57   #12
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obm

under no circumstances should electric obm(s) be used on any tidal waters that is a basic safety precaution.
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Old 15 June 2011, 18:33   #13
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Strange, I have used a Minn Kota electric outboard countless times when out and about at sea, and always at night. Truly fantastic pieces of equipment.
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Old 16 June 2011, 05:45   #14
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sharkbyte yes i know there are some that would be ok on the sea close to shore but as safety issue the magority are not safe to use at sea, but as a bit of guidence/rule of thumb 17lbs/thrust is equall to 1hp (the actuall figure is 17.something recuring lbs/thrust to 1hp) any advice i give i try to go on the side of caution and hopefully no accidents.
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Old 21 June 2011, 18:58   #15
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Sorry, Uncle Al, but I think that you are just speculating about something you have absolutely no first hand knowledge of whatsoever.

Your answer is no doubt considered 'textbook' by the H&S spoilsports and the 'RNLI wannabees' that hover around the forums, but it is simply without substance.


If the OP would like to know about the realities of safely using electric outboards at sea (mainly bass fishing in the Channel Islands and the estuaries of Essex, over many years), I'll quite happily correspond with him via pm.
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Old 22 June 2011, 11:43   #16
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Speaking form a purely theoretical viewpoint, the energy density of a (full) 5L fuel tank is substantially higher than that of a similar sized and far heavier battery.

Or, in practical terms, how much further could you go with 5L of petrol in a 2Hp outboard vs what Halfords & the like would call a "small car battery" (i.e 50-ish AH)
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Old 22 June 2011, 12:14   #17
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Absolutely no idea, 'John'.

Tell you what, why don't you go away an work it all out, and come back with an accurate graphical representation of Kj/Nm plotted on the X axis, and bass / rod hours / engine decibels on the Y axis.............
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Old 22 June 2011, 15:54   #18
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Absolutely no idea, 'John'.

Tell you what, why don't you go away an work it all out, and come back with an accurate graphical representation of Kj/Nm plotted on the X axis, and bass / rod hours / engine decibels on the Y axis.............
You seem to be getting a bit wound up. Bear in mind that everyone else has as much right to post their opposing view as you do.

Do you use electric power as your sole means of propulsion? I can see their use but I wouldn't want to be relying on one to get back ashore against wind and tide.

PS. Who's john?
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Old 22 June 2011, 16:15   #19
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sharkbyte unfortunutly i do have knowledge, please look through a lot of past replies as and when you are bored to see who i used to work for before i retired, and i stand by my safety advise
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Old 15 July 2011, 04:36   #20
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sharkbyte unfortunutly i do have knowledge, please look through a lot of past replies as and when you are bored to see who i used to work for before i retired, and i stand by my safety advise

I have had no inclination to find out what you did for a living, Uncle Al, besides, it wouldn't make a jot of difference. A decades worth of electric outboard experience, totally many hundreds of hours, isn't about to evaporate on your say so.

My rather blunt comments are purely as a result of having seen internet forums taken over by textbook fanatics, and those seeking some kind of prefect-like status.

A typical Google search these days brings up a thousand results written by odd bods and charlatans repeating the drivel of some 'well respected' know it all.
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