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Old 30 December 2014, 03:55   #1
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Ballistic 650 with Aux

has anyone fitted an aux engine onto their Ballistic 650?

I am after any photos if possible, and advice - as the transom space seems limited.

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Old 30 December 2014, 06:44   #2
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Aux bracket to move it over towards the toobs behind the A frame
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Old 30 December 2014, 06:44   #3
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do you have an aux now?

if not a 3.3 would fit on there easy, not sure how good it would be on a 6.5m boat but it would defo fit.

i'm about to go through the same process with my new ribcraft, always seems to be a pain to mount aux on rib's, amazing really when they will all take dual outboards so you would think space wouldn't be an issue.

I have even ordered a 2 litre outboard tank that will fit in my seats to keep it off deck.

i have a 3.3 and a new 5hp 4 stroke, my RC 6.8 will be getting the 5hp with sail prop on it so i'll keep a keen eye on this thread for ideas. I was looking at ways to mount it to the deck but i think i'll just put it on the transom and ratchet it up to stop bouncing.

cheers
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Old 30 December 2014, 06:46   #4
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Not got anything yet - just a winter idea.

I was thinking something a little bigger than 3.3 - something like a 5
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Old 30 December 2014, 07:00   #5
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steve,

since you don't have anything i'll measure both the 3.3hp and 5hp 4 stroke i have if it helps you decide if you can mount it?

cheers
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Old 30 December 2014, 07:07   #6
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I thought rule of thumb was 1 hp per m of rib
Can't see the 3.3 being much use

I run a 15 on the 7.0 & did on the 6.5 m Vipermax
It pushes them along at 6-7 knots and towed another 7.0 at 4 knots
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Old 30 December 2014, 07:12   #7
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Yeah I am trying to stick to the rule of 1 hp per m, but want to keep the weight down
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Old 30 December 2014, 07:32   #8
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if the choice is an outboard bracket or a 3.3 that is a tough one, i'd be trying the 3.3 to save the bracket problem.

the chances are that 4/5/6hp outboards weight the same so you probably would be okay with a 6hp depending on the brand. ofcourse, if it is a 4 stroke then storage becomes an issue if that bothers you.

a 4/5/6hp sail will happily push your rib i would think, you won't break any speed records for sure.

a lot of yachts that weight a lot more and are much bigger use 5hp sail outboards..hence the name sail :-)

if you buy a merc/mariner the prop is 90 quid ish option so keep an eye out for it when buying if new. i just upgraded my prop to suit the 6.8. if i need to change i will probably get a 9.9hp as that is the next logical size up....i'd really rather not though due to lugging that about.

cheers
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Old 30 December 2014, 08:08   #9
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i have an 8hp 2 stroke, moves my 5.8m along at around 6 knots, i wouldnt want to go far with it against the tide / wind....!
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Old 30 December 2014, 09:15   #10
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I think that a minimum of 9.8 would be good enough to push yours Steve any lower would be a waste of time.
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