Re: [bolger] Re: "Quahaug" Inboard Diesel Utility Launch- Info plz?
My father has nearly finished building a Bolger designed "Harbinger" 15' x 7'1" Catboat by the Strip planked- Dynel sheathed method. She should be launched within the next month, though things always take longer than you think!. I put some pictures of her in the early stages of construction in the Files section of the Bolger3 Group under the folfer heading "Harbinger" also in the Files section of Bolger 3 is a folder called "Merlin"-marina Cruiser which has some pictures of my father's "Merlin" marina cruiser which he built and launched in 1998 and still has and uses regularly.
Who wants to be out in a steep sea for much time anyway, thats why we hope for near to 20 Kts with the Yanmar 3GM30(24.1HP cont.) so we can get in out of it if bad weather blows up. If you have access to Bolger's "Different Boats" book look at "Quahaug's" lines. You'll see that she has a long fine entry at the water line and lots of flare in the bow sections so being stopped in a steep sea may not be too much of a problem. She would have lots of lift and buoyancy due to this flare and wide beam. She also has a straight run aft from about midships to an immersed transom which suggests that given enough power she should go quite well.! 20Knots with a 27HP(24.1 continuous @ 3400RPM) may be a bit ambitious, but even 15 Knots would be entirely adequete, probably an ideal speed; you can get places relatively quickly but not too quickly!!. "Merlin" (Displacing about 5000lbs) and being only 21'3" overall does about 6.5 Knots at full throttle with a Yanmar 2GM20 (16HP) Continuous so going
about 2.5 X this speed in a boat with less freeboard you'd think that you're really moving. Anything faster than about 20 Knots in average choppy conditions(In Tasmania) soon becomes quite uncomfortable.
Another bonus with these small Yanmar Diesels is their great fuel economy. They run best and deliver their best fuel economy in the 2600-3200 RPM range. Merlin has an 80 Litre (about 20 US gallon) fuel tank that only has to be fiiled a couple of times a year. An average half day out in her would cost less than $5 in Diesel!.
Hugo tyson, Tasmania, Australia.
dnjost <djost@...> wrote:
yes!!! that's what those things are in the back lot of Edey and
Duff! It all makes sense now.
I think you and your father have a great plan. These things looked
kind of like a small catboat with the deck removed. I suspect that
it should be good in a chop like my Marshall catboat.
The only problem with a wide beamed round bottom hull is that they
get stopped by a steep sea, While the boat is safe and secure, the
wave action is a bit disconcerting in that you are not going to make
great progress upwind.
This sounds like a fun project. go for it!
David Jost
"cleaning the dust out of what is left of his hair after a day of
removing multi layers of antifouling paint from the 1968 catboat."
Bolger rules!!!
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- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
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Who wants to be out in a steep sea for much time anyway, thats why we hope for near to 20 Kts with the Yanmar 3GM30(24.1HP cont.) so we can get in out of it if bad weather blows up. If you have access to Bolger's "Different Boats" book look at "Quahaug's" lines. You'll see that she has a long fine entry at the water line and lots of flare in the bow sections so being stopped in a steep sea may not be too much of a problem. She would have lots of lift and buoyancy due to this flare and wide beam. She also has a straight run aft from about midships to an immersed transom which suggests that given enough power she should go quite well.! 20Knots with a 27HP(24.1 continuous @ 3400RPM) may be a bit ambitious, but even 15 Knots would be entirely adequete, probably an ideal speed; you can get places relatively quickly but not too quickly!!. "Merlin" (Displacing about 5000lbs) and being only 21'3" overall does about 6.5 Knots at full throttle with a Yanmar 2GM20 (16HP) Continuous so going
about 2.5 X this speed in a boat with less freeboard you'd think that you're really moving. Anything faster than about 20 Knots in average choppy conditions(In Tasmania) soon becomes quite uncomfortable.
Another bonus with these small Yanmar Diesels is their great fuel economy. They run best and deliver their best fuel economy in the 2600-3200 RPM range. Merlin has an 80 Litre (about 20 US gallon) fuel tank that only has to be fiiled a couple of times a year. An average half day out in her would cost less than $5 in Diesel!.
Hugo tyson, Tasmania, Australia.
dnjost <djost@...> wrote:
yes!!! that's what those things are in the back lot of Edey and
Duff! It all makes sense now.
I think you and your father have a great plan. These things looked
kind of like a small catboat with the deck removed. I suspect that
it should be good in a chop like my Marshall catboat.
The only problem with a wide beamed round bottom hull is that they
get stopped by a steep sea, While the boat is safe and secure, the
wave action is a bit disconcerting in that you are not going to make
great progress upwind.
This sounds like a fun project. go for it!
David Jost
"cleaning the dust out of what is left of his hair after a day of
removing multi layers of antifouling paint from the 1968 catboat."
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
yes!!! that's what those things are in the back lot of Edey and
Duff! It all makes sense now.
I think you and your father have a great plan. These things looked
kind of like a small catboat with the deck removed. I suspect that
it should be good in a chop like my Marshall catboat.
The only problem with a wide beamed round bottom hull is that they
get stopped by a steep sea, While the boat is safe and secure, the
wave action is a bit disconcerting in that you are not going to make
great progress upwind.
This sounds like a fun project. go for it!
David Jost
"cleaning the dust out of what is left of his hair after a day of
removing multi layers of antifouling paint from the 1968 catboat."
Duff! It all makes sense now.
I think you and your father have a great plan. These things looked
kind of like a small catboat with the deck removed. I suspect that
it should be good in a chop like my Marshall catboat.
The only problem with a wide beamed round bottom hull is that they
get stopped by a steep sea, While the boat is safe and secure, the
wave action is a bit disconcerting in that you are not going to make
great progress upwind.
This sounds like a fun project. go for it!
David Jost
"cleaning the dust out of what is left of his hair after a day of
removing multi layers of antifouling paint from the 1968 catboat."
I did contact Edey & Duff and they told me that the Molly's Cove Boatworks is no longer in business, but they (Edey & Duff) are storing the molds for the Quahaug design. Apart from telling me that the "Quahaug" launches were a nice design and very roomy they didn't give me much more information, apart from the fact that they'd do about 12 Knots when fitted with a Westerbeke 13HP 2 cylinder Diesel.
In "Boats with an Open Mind"(B.W.A.O.M.) Bolger says that the Molly's Cove "Quahaug" design is the most capable and seaworthy boat of her type in handling rough conditions that he knows of, though not as good looking in a beautiful way as the "Boy's Launch".But rugged and practical.
My interest in them is on behalf of my father who would like to build one by the strip-plank/fibreglass sheathed composite method. We would probably stretch the length by 10% to get 17' 6" length and power would be a Yanmar 2GM20F (16HP Continuous) or Yanmar 3GM30F (24.1 HP Continuous) to achieve a top speed of (Hopefully) approaching 20 Knots with the 3GM30 or about 15 Knots if the 2GM20 were used. By building from wood (strip planked) and sheathing the hull with fibreglass the boat would be quite strong, watertight and lighter than the production fibreglass "Quahaugs". We would build her as a half-decked utility with a forward deck with cowled hatch as in Bolger's "Fisherman's Launch"(Shivaree 21). She'd have heaps of dry stowage forward under the deck and space for a portable WC.As shown in "Different Boats"(Bolger book) Quahaug has a deep keel option that would fully protect the propeller when beaching or accidental running aground. We would build her with this option, though the
extra surface area of the deep skeg will sap a bit of her performance, though hopefully she would still achieve somewhere close to the hoped for 20 Knots with the Yanmar 3GM30F(24.1HP continuous). With a watertight self draining cockpit(As in the plans) she could be left on a mooring in all weather conditions with little worry. She'd look great painted Gloss Black with white boot-top, Blue or Green Anti fouling, Some varnished trim(Hatch-top/sides.Polished 1/2 oval brass rubrail at the sheerline and the cockpit coamings. Decks either varnished timber(Laminated over Ply) or anti-skid deck cream over fibreglassed ply.
Hugo Tyson, Launceston, Tasmania, Australia.
dnjost <djost@...> wrote:
Hugo -
I have actually seen one. The kind folks at Edey and Duff might know.
David Jost
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
In "Boats with an Open Mind"(B.W.A.O.M.) Bolger says that the Molly's Cove "Quahaug" design is the most capable and seaworthy boat of her type in handling rough conditions that he knows of, though not as good looking in a beautiful way as the "Boy's Launch".But rugged and practical.
My interest in them is on behalf of my father who would like to build one by the strip-plank/fibreglass sheathed composite method. We would probably stretch the length by 10% to get 17' 6" length and power would be a Yanmar 2GM20F (16HP Continuous) or Yanmar 3GM30F (24.1 HP Continuous) to achieve a top speed of (Hopefully) approaching 20 Knots with the 3GM30 or about 15 Knots if the 2GM20 were used. By building from wood (strip planked) and sheathing the hull with fibreglass the boat would be quite strong, watertight and lighter than the production fibreglass "Quahaugs". We would build her as a half-decked utility with a forward deck with cowled hatch as in Bolger's "Fisherman's Launch"(Shivaree 21). She'd have heaps of dry stowage forward under the deck and space for a portable WC.As shown in "Different Boats"(Bolger book) Quahaug has a deep keel option that would fully protect the propeller when beaching or accidental running aground. We would build her with this option, though the
extra surface area of the deep skeg will sap a bit of her performance, though hopefully she would still achieve somewhere close to the hoped for 20 Knots with the Yanmar 3GM30F(24.1HP continuous). With a watertight self draining cockpit(As in the plans) she could be left on a mooring in all weather conditions with little worry. She'd look great painted Gloss Black with white boot-top, Blue or Green Anti fouling, Some varnished trim(Hatch-top/sides.Polished 1/2 oval brass rubrail at the sheerline and the cockpit coamings. Decks either varnished timber(Laminated over Ply) or anti-skid deck cream over fibreglassed ply.
Hugo Tyson, Launceston, Tasmania, Australia.
dnjost <djost@...> wrote:
Hugo -
I have actually seen one. The kind folks at Edey and Duff might know.
David Jost
Bolger rules!!!
- no cursing, flaming, trolling, spamming, or flogging dead horses
- stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
- Pls add your comments at the TOP, SIGN your posts, and snip away
- Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax: (978) 282-1349
- Unsubscribe:bolger-unsubscribe@yahoogroups.com
- Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
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[Non-text portions of this message have been removed]
Hugo -
I have actually seen one. There were built in Mattapoissett
Massachusetts, but I am unsure whether or not they are still in
business or not as I have not seen any advertising for a few years.
The kind folks at Edey and Duff might know.
Contact: David Davignon
Edey & Duff, Ltd.
128 Aucoot Rd.
Mattapoisett, MA 02739
508-758-2743
508-758-6330 Fax
David Jost
I have actually seen one. There were built in Mattapoissett
Massachusetts, but I am unsure whether or not they are still in
business or not as I have not seen any advertising for a few years.
The kind folks at Edey and Duff might know.
Contact: David Davignon
Edey & Duff, Ltd.
128 Aucoot Rd.
Mattapoisett, MA 02739
508-758-2743
508-758-6330 Fax
David Jost
Has anybody any info on Bolger's "Quahaug" launch design, the 15'11"
x 7'6" Diesel inboard utility launch. I'm after some pictures other
than the photo in Bolger's "Different Boats" Book. A company
called "Molly's Cove Boatworks" built a number of these boats as a
production launch but I've yet to come across any information or
photos/pictures. Any help greatly appreciated.
Hugo Tyson, Tasmania, Australia.
x 7'6" Diesel inboard utility launch. I'm after some pictures other
than the photo in Bolger's "Different Boats" Book. A company
called "Molly's Cove Boatworks" built a number of these boats as a
production launch but I've yet to come across any information or
photos/pictures. Any help greatly appreciated.
Hugo Tyson, Tasmania, Australia.