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Old 30 June 2014, 14:09   #1
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Bombard Aerotec 380 Engine

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Newbie question - just purchased a new Aerotec 380 for inland/ offshore cruising, some diving, up to 3 people plus dive gear, cool box etc.

Shop said for convenience of transport a 9.9hp would be easier to lift from the car with a more powerful engine being too heavy - wouldn't be looking to move it far but 35kg versus 50kg and wondered how much of a sacrifice I'd ben making in terms of speed and power....not when just me, but when the SIB is full of gear, out in a choppy sea with head wind.

I have 2 friends who think it would underpowered and not plane when full but all thoughts are welcome - I can still upgrade the order from the 9.9 to a 20hp.
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Old 30 June 2014, 14:18   #2
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Welcome to the ever growing Ribnet/Aetotech club.

Your mates are right, it will struggle to plane with a 9.9 fully loaded. Go for the 20, you wont regret it (apart from when carrying it around ).

Even better, cancel the order for the 4 stroke and buy the nicest 25hp 2 stroke you can find, thats the perfect match for the Aerotech.
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Old 30 June 2014, 14:24   #3
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Bombard Aerotec 380 Engine

A 9.9 won't get you on plane with 3 adults plus kit. In fact you probably won't plane with 3 adults and no kit.

A 20hp 4-stroke is going to be heavy and awkward to carry. You'll obviously get better performance, but you're unlikely to want to go far in any chop at speed.

The preferred option for most people is a 2-stroke which are lighter but only available second hand now. A 15hp is a good compromise, but still underpowered if you're loading the boat up. A 25hp 2-stroke is manageable, especially if there are two of you to carry it, but it's harder work.

I've had 9.8, 15 and 25 hp motors on my Aerotecs, all 2-stroke. The only one I've kept is a 15, but I don't run the sort of loads you're anticipating.
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Old 30 June 2014, 15:09   #4
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Forget the 9.9 and four stroke in general. As above the 15 2 smoke is a great option (I use this on a lighty loaded Bombard ) but with three guys and gear you will definitely need the full monty 25 on there.

Edit: the scarce Tohatsu 18 *might* be a possibility...
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Old 30 June 2014, 17:54   #5
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Agreed with above I would put a 25hp 2st on it for your needs

Yamaha 25hp ss manual start Outboard Engine | eBay

mariner 25hp outboard | eBay

Tohatsu Outboard motor 25Hp 2 stroke engine speed boat short / standard shaft | eBay

The marathon is a rebranded Tohatsu both can be tweeked up to 30hp bit ruff compared to the Yam! Recon the Tohatsu is way over priced
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Old 30 June 2014, 21:58   #6
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Or buy a Tohatsu 25 HP and convert to 30 for candy cost. Both weight same, being the 25 same undertuned model to the 30. 15 is extremely poor for the weight you intend to transport.

Happy Boating
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Old 01 July 2014, 03:59   #7
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Has anyone run one with a Soozook DT25?
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Old 01 July 2014, 06:19   #8
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Has anyone run one with a Soozook DT25?

Tried a few on Zodiac Futura's. Loved the older 2 cylinder ones(but not as smooth as the Yam), but the 3 cylinder version was just toooooo heavy IMHO.
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Old 01 July 2014, 09:05   #9
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I have a Yam 380 with a 15hp Yamaha 4stroke on the tail, it planes with me (14st) wife and 4 teens aboard. It easily pulls a wakeboarder (beginner) and cruises all day on less tan half a tank of fuel.15hp is manageable alone, a 25hp will without question take two of you. IMHO of course.
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Old 01 July 2014, 19:34   #10
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Tried a few on Zodiac Futura's. Loved the older 2 cylinder ones(but not as smooth as the Yam), but the 3 cylinder version was just toooooo heavy IMHO.
It's the 3 cyl version I'm interested in.
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