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Old 30 December 2014, 11:11   #11
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you do not "need" a 10hp engine to move a 6.5m boat, there is ofcourse move and MOVE.

i don't think you have room to put a 10hp on the transom??, that would mean the dreaded outboard bracket...YIKES!!

if you can store a 10hp 2 stroke on the deck and move it in times of need then that maybe a better option? you can pretty much forget that with a 4 stroke as you would need it up so high it would be cumbersome to avoid oil getting into the head for when you do need it.

failing that, you my need to make do with a 6hp, looking at your pics i think it would fit on the transom, be tight but i think be okay, again, happy to measure mines if it helps.

you will either need to compromise on having a bracket on the transom or fewer ponies i'd think. i'd be inclined to take slightly less HP rather than leave outboard bouncing about out back personally if i had absolutely no other option.

BTW, my 3.3 will push my 5.6 at 4.5mph on GPS. i won't be going far against the tide but it does the job. i bought the 5hp for the job but the damn thing didn't fit so i had the same dilemma as you have now.

cheers
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Old 30 December 2014, 15:20   #12
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3.3 would be a waste of time, I had a Yam 5hp on my first rib, it was a complete pain, the bracket was not strong enough to take the pounding it gets on a rib and the one time I needed it it had barely enough power to hold the nose into the tide. A good anchor is more effective IMO.
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Old 30 December 2014, 16:42   #13
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Quote:
Originally Posted by Chris View Post
3.3 would be a waste of time, I had a Yam 5hp on my first rib, it was a complete pain, the bracket was not strong enough to take the pounding it gets on a rib and the one time I needed it it had barely enough power to hold the nose into the tide. A good anchor is more effective IMO.
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Old 30 December 2014, 17:04   #14
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surely any aux regardless of size is better than no aux? so the OP has 3 options really.

1. get whatever will fit on the transom

2. get a 9.9hp (ish) outboard and shove it on an outboard bracket. only the OP can decide if they would be okay with that. I wouldn't but it isn't my boat :-)

3. run with no AUX (depending on where you boat this may be acceptable, seastart location for example)

ideally i'd be wanting to put a 6hp on the transom with the high thrust prop option. if anything bigger fits then happy days, go that way :-)

whatever way you go please post some pics.

cheers
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Old 30 December 2014, 17:25   #15
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see, we were just not thinking big enough :-)

one either side...BOOM....NEXT!
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Old 30 December 2014, 18:34   #16
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Mariner 3.3hp will be a waste of time on a 6.5m. It'll be like putting the froth on a cappuccino, with plenty bubbles but little substance!

I used to run a Tohatsu 3.5hp (2-stroke) on Zodiac Pro (4.2m) as an auxilliary engine next to a Yamaha main lump. That was a good combination in my opinion.

Plenty of reasons to go down the 2-stroke route, weight and engine width being the over-riding reasons.

Explore the possibility of a fixed external bracket, rather than an adjustable bracket. The Plastimo stainless steel bracket which I had used to rattle like a bag of spanners.

I'd look at the possibility of a Tohatsu or Yamaha 5-8hp. Speaking of which, here's a sweet Yamaha 8hp 2-stroke.
http://www.seamarknunn.co.uk/download/usedob/used.pdf

It'll weigh in at 27kg which isn't huge. Also relatively slim so it can sit next to the main engine even at hard lock. I'd look to secure the engine when underway as vibration will be your biggest concern. Ratchet strap to a stainless steel U bolt on the transom knee or deck would work.

Here's the type of brackets I'm referring to.
Fixed Kicker Bracket - 1511 SE - SALTBOSS? MARINE

See what you think. I'm sure you could get something fabricated locally once you've done some measuring. You don't need the depth, but the lip on your transom is your issue. If it was seated close to the tube you should get the clearance you need.

I'd go for it fixed in position. I've seen a few RIBs with the auxilliary located near the rear jockey seat, or in one example in front of the main console. Sounds fine until you have to manhandle 27kg in a rolling sea to the transom without dropping it in the drink!

The other advantage of being in situ on the transom is that you can use it regularly. Trouble with auxilliary engines is they need to be run. I didn't fire up my auxilliary and it was meticulously maintained, but I still found the impeller encrusted in salt at the end of the season. Valuable lesson learnt. It now gets washed down and run in a barrel regardless of whether I used it on the water.

Good luck with your search and keep us posted.
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Old 31 December 2014, 02:58   #17
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Its just a winter dream at the moment to get one, both for the redundancy factor but then maybe at a later date get a little SIB.

I dont know if I could get one that will bolt onto the transom because of the lip - This is why I wanted to know if anyone had done it - I may ask JBT for some advice.

I have plenty of options for storage, as the Ballistic has big ski lockers so I could get a bracket made up and store it in that - but then this limits me to 2 storke.
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Old 31 December 2014, 10:00   #18
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Quote:
Originally Posted by SteveHall View Post
Its just a winter dream at the moment to get one, both for the redundancy factor but then maybe at a later date get a little SIB.

I dont know if I could get one that will bolt onto the transom because of the lip - This is why I wanted to know if anyone had done it - I may ask JBT for some advice.

I have plenty of options for storage, as the Ballistic has big ski lockers so I could get a bracket made up and store it in that - but then this limits me to 2 storke.
Have alook here for pics of mine
The Vipermax has a lip too

Aux move
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Old 31 December 2014, 11:41   #19
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Measure the transom thickness-I think you'll find there's no auxiliaries available that will even sit over the transom of a Ballistic even if you removed the lip.
It's certainly true for the 7.8-Hence I put a bracket on mine. 8hp 2 stroke gives me 6 knots.
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Old 28 January 2015, 07:58   #20
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Nos - Do you have any photos?
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