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Baia 48 Flash

Discussion in 'General Yachting Discussion' started by Jimes, Oct 19, 2019.

  1. Jimes

    Jimes New Member

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    Does anyone have experience on these boat and solid numbers for mpg/range on these boats?

    Led to believe it may do 1 mile per gallon in calm water but ferrying it south from Florida so looking for best range speed and a safe factoring for sea state.

    Am planning a 120nm run prior to USA departure so will get a good idea then, but if anyone can help narrow down numbers prior it would really save me some headache right now.

    They're pretty rare in the USA, and this particular one has the C12 Cats so scarce as hen's teeth.

    If you have direct experience i am forever in your debt, but even if your mate's mate ran a 63' Azzura i'm all ears.
  2. Capt J

    Capt J Senior Member

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    C12's burn around 52 gph for both at 80% load, what's cruise speed on the boat? I ran a 1998 58' Baia for a while, and it had 8v92's and didn't like staying on plane unless lighter on fuel, etc. So the numbers I had on that boat, are useless to you.
  3. Jimes

    Jimes New Member

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    Hi Capt J, thank you very much for replying!

    From the little i've seen this particular one (with c12 acerts) planes fairly easily. Enough throttle for turbo spin up and maybe 25% down on the drives and she comes right up. No need of trim tab. Believe the 480hp penta powered 48s need a lot of down angle on the drives plus trim tab to get up on plane.

    Sea trial in calm river water showed 50mph @2350rpm WOT and ~40mph @ 1750-1800rpm. This was 2 guys onboard and about 1/2 tank of fuel (350gals = full tanks)... so far from loaded.

    So i guess normal cruise is 32-35kts... but we're unlikely to do that on a ferry unless the sea is very calm. And besides i need max range cruise speed as i had planned this refueling in Cuba, but that is out now due to the fuel shortages.

    The other option is the boat does 8kts at forward idle. Means a much longer trip but may provide the range i need.

    I'm not sure which gallons the tanks are and it makes a fair difference... do you remember if your Baia tanks were stated in imperial or USG capacity?
  4. Capt J

    Capt J Senior Member

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    She'll get excellent range at hull speed, so to extend range, I'd probably do an overnight at hull speed with extra fuel barrels and dump them as soon as possible into the main tanks. Generally the Arneson boats are very efficient, but your fuel capacity is seriously lacking. Check the tanks themselves and see if there's a tag on it that states tankage. They usually do on Baia's.

    The 480HP Volvo penta one was probably like the 59' I ran with 760HP 8v92's...…..you needed a hope and a prayer to get her on plane with full fuel.

    Where are you taking her from and to? The good news is the CAT computers are excellent at recording the fuel burned on the C12's. Go to the trip fuel page, press both arrows at the same time (on the cat display) and follow the instructions to clear the trip fuel each time you fuel. Also the fuel burn calculation on the displays is right on the money.
  5. Jimes

    Jimes New Member

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    That is excellent news on the CAT fuel burn recording. The boat has Raymarine C80s (its a 2006) so not a lot of fancy info. But fuel numbers like that and some basic math will do me just as well.

    I'm not at the boat so can't check tanks. All the info i've seen says 350 gals but not sure which gallons. I'm planning 320 usable.

    How much fuel on deck do you think she'll handle safely? Would it handle 150-200gal bladder tied on the foredeck or would this be too much & too high?

    Longest sector is 420nm and the first 60nm of that may have up to 2kts of current against us. It should even out after that.

    For that sector:
    @0.6nm/gal = 7 drums/2700lbs/14 adults equiv
    @0.7nm/gal = 5 drums/1953lbs/10 adults
    @0.8nm/gal = 4 drums/1562lbs/8 adults
    If she does 1nm/gal @ hull speed then 2 drums would do... would it do this do you think?
    If better than that at hull speed could mix it up as you say. Planning to run slow at night anyway then open her up day time if the sea state allows and we have the fuel for it.
  6. Capt J

    Capt J Senior Member

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    I wouldn't do 1 bladder. I'd do 2 drums in the cockpit and a smaller bladder on bow. For your distance you're going to have to do a good amount of slow speed. I would do 2 drums and a bladder and do hull speed and plan on a 20% reserve minimum. On long voyages like that I actually plan on a 30% reserve (of the main tanks). She should do 1nm per gallon, I'd be a little doubtful of more than that at hull speed, but who knows. Where are you headed to? Key West to Cozumel?
  7. Capt Ralph

    Capt Ralph Senior Member

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    Is this range needed for repeated trips or just one time to get her home?
  8. Jimes

    Jimes New Member

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    Capt Ralph- Mainly just to get her home, but could be used other times/maintenance runs etc.

    The way i see it the price of a bladder is a small fraction of shipping the boat.
  9. Capt Ralph

    Capt Ralph Senior Member

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    Please search the YF threads on Bladder vs Drums. Opened my eyes a bit more.
    I do agree with Skippy J with drum and a bladder on for-deck,, running slow.
    With weather and currents, I see that reserve getting used up.

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