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Hi, Anyone had any experience with this boat? I would welcome any comments good or bad about the design, engines Caterpillar 3126 DITA 395HP, or general build quality, sea keeping etc
Thanks
Thanks
Hi, Anyone had any experience with this boat? I would welcome any comments good or bad about the design, engines Caterpillar 3126 DITA 395HP, or general build quality, sea keeping etc
Thanks
Hmmmmm. Great question. I am looking at the Azi 39, same Cat engines but 355 hp output.
Looks fantastic, and build quality from what I have seen is very good.
Looking fwd to seeing replies to this thread.
The one at cabin? Stu and maz are a great couple.
Not sure Paul. Is it called Jet? There are a couple on the market at Southampton, and a few more in Italy and Greece.
You should know which one i mean if you know what I mean, yes jet is the one.
I have a pair if 3126 cats rated at 450hp, I love them, no smoke on start up, start every time, filters are quite cheap, parts easy to get hold of, they are a bit agricultural but I like that![]()
Hi Terry, what's the deal? Pm maybe? Cat 3126 a good motor, some had soft blocks and valve train probs, cat can confirm if they have been upgraded under warranty by giving serial numbers to finning.
Sherwood sea water pumps are pants, filters cheap, many engine anodes fitted, far more££££ than volvos pencil anodes.
Watch out for osmosis even on 6 year old models, I've seen a few with it.
Don't suppose it's called White mischief by any chance? If so I look after the motors.
Are you sure there 450 I thought they were 426 hp, the electronic ones are 450hp.
Hi Paul,
No, its not White Mischief but you know cats pretty well??
This is something I got from the CAT website which might help you although may be US gallons ! I don't worry too much about the economy as don't do many miles/hours but would estimate a gallon a mile.
RPM 420hp
2800 22.9 Gallons per hour / per engine
2600 17.3 Gallons per hour / per engine
2400 13.3 Gallons per hour / per engine
2200 10.1 Gallons per hour / per engine
2000 7.8 Gallons per hour / per engine
1800 6.2 Gallons per hour / per engine
1600 5.9 Gallons per hour / per engine
You have to be careful about using the fuel consumption figures from the Cat spec sheets because generally they give 2 sets of figures, one for max power curve and one for prop demand curve, and neither is strictly speaking applicable to a planing boat. The max power curve assumes that the engine is developing it's max rated power at all rpm which is a situation that is impossible to achieve with a single gear ratio and a propellor which is sized to allow the engine to achieve it's max power at one particular rpm (generally max rpm). The prop demand curve, on the other hand, is a curve that attempts to take account of the inability of the prop to allow the engine to develop max power at all rpm but note that the prop demand curve on the Cat spec sheets is calculated for a displacement boat, not a planing boat. Actually it would be impossible to publish a prop demand curve applicable for all planing boats because a prop demand curve is something that varies from boat to boat depending on hull design, weight, prop size, fouling etc etc.
I've had Cat engines in my last 4 boats and I have attempted to calculate a fuel consumption v speed/rpm curve for all of them but without accurate fuel flow measuring equipment, it is not possible to do that accurately. FWIW, I've found from simple calculations based on fuel fills that the actual consumption falls somewhere between the Cat max power and displacement prop demand curves. On my current boat which has electronically controlled engines, there is fuel consumption data given on the engine instrumentation and this seems to be reasonably accurate enough to calculate a usable fuel consumption curve