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01-03-2017, 02:37 PM
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#21
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Guru
City: Jacksonville Beach, FL
Join Date: May 2015
Posts: 1,027
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Congrats, dw 8928. As Larry said, that looks like a lot of boat in 31 feet. More photos and stories will be welcome. Whereabouts in Florida do you aim to move her?
__________________
"Less judgment than wit is more sail than ballast. Yet it must be confessed that wit give an edge to sense, and recommends it extremely." ~ William Penn
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01-03-2017, 02:37 PM
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#22
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Member
City: South Tampa, Florida
Vessel Model: Shopping for one.
Join Date: Jan 2017
Posts: 15
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Beautiful!
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01-03-2017, 03:09 PM
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#23
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Senior Member
City: Seattle
Vessel Name: Silver
Vessel Model: Helmsman 31
Join Date: Sep 2011
Posts: 162
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the plan is Naples or Tampa.
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01-03-2017, 04:53 PM
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#24
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TF Site Team
City: California Delta
Vessel Name: FlyWright
Vessel Model: 1977 Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 13,705
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Very nice package, DW! I've long been impressed with the Camano Troll/Helmsman 31. As others have said, it's sure a lot of boat for its size.
Please keep us posted on your delivery trek and first impressions. Congrats of the Best of Year Christmas present!!
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01-06-2017, 02:58 PM
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#25
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Senior Member
City: Seattle
Vessel Name: Silver
Vessel Model: Helmsman 31
Join Date: Sep 2011
Posts: 162
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Quote:
Originally Posted by Capt.Bill11
How easy is it to get parts and service for it in the states?
And what do you mean by "auto oil change"?
"Auto oil change" as in it bleeds off a little dirty oil while replacing it with clean oil?
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Here's a write-up on the Seasall engine if interested. The engine in mine is essentially just a re-chipped version of this engine:
Hyundai Marine Seasall 270P | | PassageMaker
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01-06-2017, 03:47 PM
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#26
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,772
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By all accounts, the Camano Troll was overpowered at 200 HP. I have to wonder why Helmsman went with increased horsepower?
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01-06-2017, 04:31 PM
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#27
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Guru
City: Gig Harbor
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 9,045
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Quote:
Originally Posted by WesK
By all accounts, the Camano Troll was overpowered at 200 HP. I have to wonder why Helmsman went with increased horsepower?
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Very common now. My boat is overpowered at 380hp in my opinion.
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01-06-2017, 05:27 PM
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#28
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Guru
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,451
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Quote:
Originally Posted by dhays
Very common now. My boat is overpowered at 380hp in my opinion.
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Wifey B: Ours is underpowered at 2400 hp in my opinion.  I was really wanting a Nor-tech Roadster or something but now just lusting after an AB. Not real fast but they will mostly run over 50 knots. 
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01-06-2017, 06:06 PM
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#29
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Senior Member
City: Seattle
Vessel Name: Silver
Vessel Model: Helmsman 31
Join Date: Sep 2011
Posts: 162
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Helmsman has a pretty big analysis of the engine and the power curve, prop pitch, fuel burn, etc. Might still need to be throttled back though at 240hp, but at least it has some reserve power!
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01-06-2017, 06:13 PM
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#30
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,772
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Quote:
Originally Posted by dw8928
Helmsman has a pretty big analysis of the engine and the power curve, prop pitch, fuel burn, etc. Might still need to be throttled back though at 240hp, but at least it has some reserve power!
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You will likely be running the engine way under loaded unless you run 12 knots. And that's going to use a lot of fuel.
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01-06-2017, 11:43 PM
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#31
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TF Site Team/Forum Founder
City: League City, Tx
Vessel Name: Floatsome & Jetsome
Vessel Model: Meridian 411
Join Date: Oct 2007
Posts: 7,279
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Not everyone wants to go 8 knots. If you have a planing boat...that planes....you can never have enough power. Those Camano/Helmsmans have pretty nifty hulls that move thru the water easily.
__________________
Prairie 29...Perkins 4236...Sold
Mainship Pilot 30...Yanmar 4LHA-STP...Sold
Carver 356...T-Cummins 330B...Sold
Meridian 411...T-Cummins 450C
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01-07-2017, 02:00 AM
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#32
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TF Site Team
City: Ex-Brisbane, (Australia), now Bribie Island, Qld
Vessel Name: Now boatless - sold 6/2018
Vessel Model: Had a Clipper (CHB) 34
Join Date: Jun 2008
Posts: 9,869
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Quote:
Originally Posted by dw8928
Helmsman has a pretty big analysis of the engine and the power curve, prop pitch, fuel burn, etc. Might still need to be throttled back though at 240hp, but at least it has some reserve power!
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Quote:
Originally Posted by WesK
You will likely be running the engine way under loaded unless you run 12 knots. And that's going to use a lot of fuel.
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Quote:
Originally Posted by Baker
Not everyone wants to go 8 knots. If you have a planing boat...that planes....you can never have enough power. Those Camano/Helmsmans have pretty nifty hulls that move thru the water easily.
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Precisely, and in any case, I think this paranoia about running larger engines underloaded for periods is somewhat overplayed, as long as they have a good old full power burst from time to time.
__________________
Pete
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01-07-2017, 02:12 AM
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#33
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Master and Commander
City: Vallejo CA
Vessel Name: Carquinez Coot
Vessel Model: penultimate Seahorse Marine Coot hull #6
Join Date: Sep 2010
Posts: 12,516
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Quote:
Originally Posted by Baker
Not everyone wants to go 8 knots. If you have a planing boat...that planes....you can never have enough power. Those Camano/Helmsmans have pretty nifty hulls that move thru the water easily.
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And you can never have a too large fuel budget.
__________________
Kar-KEEN-ez Koot
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01-07-2017, 02:13 AM
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#34
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Master and Commander
City: Vallejo CA
Vessel Name: Carquinez Coot
Vessel Model: penultimate Seahorse Marine Coot hull #6
Join Date: Sep 2010
Posts: 12,516
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Quote:
Originally Posted by Peter B
Precisely, and in any case, I think this paranoia about running larger engines underloaded for periods is somewhat overplayed, as long as they have a good old full power burst from time to time. |
My full-power surge achieves hull speed.
__________________
Kar-KEEN-ez Koot
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01-07-2017, 02:18 AM
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#35
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Master and Commander
City: Vallejo CA
Vessel Name: Carquinez Coot
Vessel Model: penultimate Seahorse Marine Coot hull #6
Join Date: Sep 2010
Posts: 12,516
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If your quest is speed, consider something like this:
__________________
Kar-KEEN-ez Koot
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01-07-2017, 02:29 AM
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#36
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Guru
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,451
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Quote:
Originally Posted by Peter B
Precisely, and in any case, I think this paranoia about running larger engines underloaded for periods is somewhat overplayed, as long as they have a good old full power burst from time to time. |
Not somewhat, greatly. All the engine manufacturers advise you how to prevent that from being a problem. Typically it's bring up the load for 30 minutes every six hours or something similar.
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01-07-2017, 02:30 AM
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#37
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Guru
City: Fort Lauderdale. Florida, USA
Join Date: Jan 2014
Posts: 21,451
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Quote:
Originally Posted by markpierce
If your quest is speed, consider something like this:
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Wifey B: Oh, I like that...yes yes yes. 
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01-07-2017, 03:36 AM
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#38
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Guru
City: Gig Harbor
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 9,045
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Quote:
Originally Posted by Peter B
Precisely, and in any case, I think this paranoia about running larger engines underloaded for periods is somewhat overplayed, as long as they have a good old full power burst from time to time. |
My understanding is that the newer diesels don't have the same problems with running under loaded like in days gone by.
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01-07-2017, 05:47 AM
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#39
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TF Site Team
City: Ex-Brisbane, (Australia), now Bribie Island, Qld
Vessel Name: Now boatless - sold 6/2018
Vessel Model: Had a Clipper (CHB) 34
Join Date: Jun 2008
Posts: 9,869
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Quote:
Originally Posted by BandB
Not somewhat, greatly. All the engine manufacturers advise you how to prevent that from being a problem. Typically it's bring up the load for 30 minutes every six hours or something similar.
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Yeah, I wanted to say that, but thought it might bring a sh*t storm down on my head from all the 'experts'...
__________________
Pete
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01-07-2017, 06:26 AM
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#40
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Guru
Join Date: Jun 2014
Posts: 1,274
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We chose a higher hp version of the engine in our boat...480 vs 380 hp.
The decision was made for a number of reasons:
First obviously was that the boat will have a higher top speed when and if we want it.
Second, after a couple of deliveries totaling some 120 plus miles, I became aware of a harmonic in the 380 hp engined boat. When I described this to the factory, they told me that I was describing the harmonic associated with a 4 blade propeller in an aperture. The fix? A 5 blade propeller although less efficient will alleviate the issue. The 5 blade prop is a good fit with the larger hp engine...
The final reason was that the 480 hp engine get a different transmission and ratio. The lower gearing of 3:1 vs 2.6:1 allows the higher rpm engine and different propeller to work optimally in the range of speeds our boat will operate in.
Finally, we are told that in spite of the lower gearing and 5 blade propeller, the higher power drivetrain gets better fuel mileage than the lower power drivetrain at a given speed.
In other words, we will consume less fuel unless we push to the highest speeds.
We have a number of sea trial spreadsheets of the various combinations that back up the claims so we are hopefull...
Bruce
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