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Old 06 July 2015, 05:27   #11
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Country: UK - England
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Re the precautionary patches...

Don't know if you've ever noticed but you always get a small bulge on the underside of a HP air floor on the opp side to where there's a valve... because at that localised point the multiple threads that connect top & bottom layers will not be joined over the area of the hole cut for the valve.

On that Aerotec these are the two "lumps" that he's patched over.

On the Fastrollers with the HP keel even from brand new this lump can be seen on the top of the air floor opp the boss on the underside where the hose goes from floor to keel. This worried me on our new Fastrollers until I realised what it was about.


Re that Yamaha at 1350...

I have a slightly different view that's evolved over the past few years. As long as an engine is the same model/series as the last made in 2006 I'm not that worried if it is 1999 or 2006... it's all about condition. If it's a minter with original paperwork, an unmarked prop that has hardly seen sand etc then it has the potential for top money.

My 2006 Mercury is in fantastic condition (like yours) but the identical model 10hp I got with the old Aerotec despite being a 1997 is even better... it is as if almost unused. Seriously considering getting a 15hp carb (going to put up a thread related to this) for that and selling the 2006 15hp.
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Old 06 July 2015, 06:14   #12
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Quote:
Originally Posted by Landlockedpirate View Post
Hi, first thing to do is read the thread 'which Sib' in the inflatable boat forum.

Then buy a Aerotec 380 and either a 15 hp 2 stroke (36kg ish) or a 25hp 2 stroke (45kg ish) if you can manage it.

Job done :-)

Thats a bit tongue in cheek, but the above is a great combo. If you want to inflate every time, stay with air floors and less than 3.8m and stay with a named brand. Others to look at are Zodiac Futura Mk2C fastroller and Honwave T38.
I can confirm that. Aerotec 380 + 15HP 2 stroke.
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Old 06 July 2015, 07:40   #13
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Quote:
Originally Posted by Fenlander View Post
Re the precautionary patches...

Don't know if you've ever noticed but you always get a small bulge on the underside of a HP air floor on the opp side to where there's a valve... because at that localised point the multiple threads that connect top & bottom layers will not be joined over the area of the hole cut for the valve.

On that Aerotec these are the two "lumps" that he's patched over.
Hi David, I have not noticed any bulging on mine TBH and I to go right up to 11.5 (and a tadge over to 12psi at launch time to compensate for cold water), the Honwave is slightly different as the air chamber is the floor isn't it?

Re' the engine, I was referring to the old Merc with the package one not the first link in two listings (2000 Yam). I'd say the 2000 Yam is maybe 1100 to 1150?

Having said that and owned one of those Yams I'd much rather have a last model Merc/Mariner with the brilliant 'automatic' tilt/trim system, tiller gear change and lighter weight.

But what would you pay for the old Merc? 500/550?
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Old 06 July 2015, 10:55   #14
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Great advice from everyone.

Your use and conditions are pretty typical for around here but some of the factors to be considered I believe are if you plan on moving the boat or engine around by yourself or with the aid of those that plan on going with you? This makes a big difference! That recommended 15 can then turn into a 30, 40...

We've only used ours a couple of times but some things I quickly found out that aren't typically covered;

- the size and weight of the engine and boat can be overwhelming when you first check it out but there have been some ingenious ideas on here on how to maneuver these items more easily and efficiently. Carts, dolly's, rollers, etc. My wife and I have come up with a couple of our own based on ideas we've seen. At first we wanted to give up, send the boat back and sell the engine but now we have systems in place that allow both of us to load, unload and setup with relative ease and we look forward to taking it out.

- researching and testing props and engine height tailored to your setup makes a big difference and can make or break your experience with the engine and combination.

- do some searching and reading on negative topics instead of positive related to inflatables like; porpoising, cavitation, ventilation

- confirm you have realistic expectations. We wanted a large enough boat that our family would be comfortable but would need a smaller engine for us to move around. Our intent and expectation was for slow exploration of the various bodies of water around us and not a high-speed excursion. That is what we got. We're actually pleased and surprised by our max speed and the family has noted they don't want to go any faster than that so we are satisfied but this not what everyone else hopes for.
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Old 06 July 2015, 11:37   #15
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>>>Hi David, I have not noticed any bulging on mine TBH

If you inflate the air floor out of the Aerotec and look on the underside I'd be amazed if you don't see the slight bulge... I'm talking mm not like a balloon shaped disaster. My Aerotec has it, both my Fastrollers did and so does my Acti-V 340.

All directly op the placement of valves due to the missing "strings" at that point.
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Old 06 July 2015, 13:40   #16
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Quote:
Originally Posted by Fenlander View Post
>>>Hi David, I have not noticed any bulging on mine TBH

If you inflate the air floor out of the Aerotec and look on the underside I'd be amazed if you don't see the slight bulge... I'm talking mm not like a balloon shaped disaster. My Aerotec has it, both my Fastrollers did and so does my Acti-V 340.

All directly op the placement of valves due to the missing "strings" at that point.
I expect that is the case but I have only looked with it inside the main floor and there is no real bulge evident. No reason it should be a wear issue though regardless? I'd never drag a SIB over any ground that could damage it.
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Old 06 July 2015, 14:01   #17
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No they're not a problem more a side effect of construction method. I'm guessing the seller has mistaken the reason for the bulges as air pressure from the pump.
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Old 06 July 2015, 17:35   #18
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Are you seriously considering putting a new born in a sib for a ten mile round trip?

I think you need to try it without the baby first. Ive taken wee ones out before but only in ideal conditions where I could be back ashore in 15-20 mins. Im not sure we ever took ours before they could walk and at least try to hold on...
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Old 06 July 2015, 20:54   #19
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Guys
Great advice, I am going down to the south west in August and will be hiring a run about this summer as I think the best idea as you suggest is 2nd hand aerotec, I would also love to source a 2stroke 18hp tohatsu and maybe with a year to watch this would be possible ?!
If I can't source the tohatsu what would be your second choice of engine, I can't help thinking that 50kg will be too heavy, I can't believe that I will have loads of help putting the boat together !


Poly
Just to make sure you don't think I am irresponsible ... The new born will only do river pootling close to the village until he is a little older, but I want the boat to be able to be future proof for when babe gets older (also Dad wants to do a bit of exploring with friends now )
😉
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Old 07 July 2015, 04:23   #20
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PIB are you hiring a hard boat... or have you found somewhere that will do SIB hire?
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