Re: sail to motor conversion
It all depends I guess on what your requirements are for a reasonable
cruising speed. Even though this design may be perfect with a 25 hp
motor, doesn't mean it won't go with a much smaller motor, just not as
quickly.
To go even moderately fast with a really small motor requires an
absolute minimum of wetted surface and very light weight
boatbuilding. It's often alot easier to go to a slightly larger
engine and build something a bit more moderate.
Bill H.
cruising speed. Even though this design may be perfect with a 25 hp
motor, doesn't mean it won't go with a much smaller motor, just not as
quickly.
To go even moderately fast with a really small motor requires an
absolute minimum of wetted surface and very light weight
boatbuilding. It's often alot easier to go to a slightly larger
engine and build something a bit more moderate.
Bill H.
> > There's a guy, do a web search for a power sharpie, Jim M(something)
> > that's designed a flush deck powerboat that's similar to thatprotected
> > design and has be tried and proven. Might try to find that one.
>
> I think that's Jim Michalak and the AF4, which is meant for
> waters. He also designed the Dorado for not-so-protected waters.But
> it appears to need 25hp for optimum cruise speed. Those both have a
> modified birdwatcher cuddies.
>
> -Carl
Carl,
Not a Bolger design or an "instant boat", but H. I. Chapelle designed
in the early 1950's a 18'10" outboard "cruiser" named Waterman. It
does have a plywood option and requires lofting. I got the plans from
D.N. Goodchild http://www.dngoodchild.com/divide_author.htm
You get what you pay for, and $5.95 doesn't bring much detail but
everything is there to build the boat including a bill of materials. I
haven't lofted it out yet but it seems to be designed for a short
shaft (15") motor in a well. The only changes I contemplate if I
eventually build the design is to make sure the well will fit a modern
9.9 hp 4-stroke.
Just an alternative idea.
Lewis
Not a Bolger design or an "instant boat", but H. I. Chapelle designed
in the early 1950's a 18'10" outboard "cruiser" named Waterman. It
does have a plywood option and requires lofting. I got the plans from
D.N. Goodchild http://www.dngoodchild.com/divide_author.htm
You get what you pay for, and $5.95 doesn't bring much detail but
everything is there to build the boat including a bill of materials. I
haven't lofted it out yet but it seems to be designed for a short
shaft (15") motor in a well. The only changes I contemplate if I
eventually build the design is to make sure the well will fit a modern
9.9 hp 4-stroke.
Just an alternative idea.
Lewis
--- In bolger@yahoogroups.com, "ch_bunch" <ch_bunch@y...> wrote:
> Thanks to everyone giving their advice on my post. I appreciate
> it. How's this for an idea...
>
> Build an AD14 (from http://www.boatplans-online.com)
>
> ...without the sail and centerboard. Keep the keel - maybe smooth
> it out and reduce ballast a bit. Stick a 9hp outboard on there,
> and what do you get?
>
> A disaster maybe? :)
>
> This boat interested me because of their confidence in it's
> seaworthiness.
>
> I wish Mr. Bolger had a nice web resource like a lot of these other
> designers. It would be very helpful to have a one-stop spot to
> check out his designs. Anyway, I'm still looking for that ultra-
> economy powerboat micro-cruiser. Any more thoughts on this topic?
>
> -Carl
To save anyone else who's interested the five minutes it took me to
find the design, here is the url:
http://www.boatplans-online.com/studyplans/AD14_study.htm
I can't see why it wouldn't make a nice little motorboat. It wouldn't
be very fast, although on average faster than a sailboat of the same
size. You might not need as much as 9 hp.
Howard
n--- In bolger@yahoogroups.com, "ch_bunch" <ch_bunch@y...> wrote:
find the design, here is the url:
http://www.boatplans-online.com/studyplans/AD14_study.htm
I can't see why it wouldn't make a nice little motorboat. It wouldn't
be very fast, although on average faster than a sailboat of the same
size. You might not need as much as 9 hp.
Howard
n--- In bolger@yahoogroups.com, "ch_bunch" <ch_bunch@y...> wrote:
> Thanks to everyone giving their advice on my post. I appreciate
> it. How's this for an idea...
>
> Build an AD14 (from http://www.boatplans-online.com)
>
> ...without the sail and centerboard.
>"Bill Hamm" <griff10us@y...> wrote:I think that's Jim Michalak and the AF4, which is meant for protected
> There's a guy, do a web search for a power sharpie, Jim M(something)
> that's designed a flush deck powerboat that's similar to that
> design and has be tried and proven. Might try to find that one.
waters. He also designed the Dorado for not-so-protected waters. But
it appears to need 25hp for optimum cruise speed. Those both have a
modified birdwatcher cuddies.
-Carl
There's a guy, do a web search for a power sharpie, Jim M(something)
that's designed a flush deck powerboat that's similiar to that
design and has be tried and proven. Might try to find that one.
Bill H.
that's designed a flush deck powerboat that's similiar to that
design and has be tried and proven. Might try to find that one.
Bill H.
> Thanks to everyone giving their advice on my post. I appreciatesmooth
> it. How's this for an idea...
>
> Build an AD14 (from http://www.boatplans-online.com)
>
> ...without the sail and centerboard. Keep the keel - maybe
> it out and reduce ballast a bit. Stick a 9hp outboard on there,other
> and what do you get?
>
> A disaster maybe? :)
>
> This boat interested me because of their confidence in it's
> seaworthiness.
>
> I wish Mr. Bolger had a nice web resource like a lot of these
> designers. It would be very helpful to have a one-stop spot to
> check out his designs. Anyway, I'm still looking for that ultra-
> economy powerboat micro-cruiser. Any more thoughts on this topic?
>
> -Carl
Thanks to everyone giving their advice on my post. I appreciate
it. How's this for an idea...
Build an AD14 (from http://www.boatplans-online.com)
...without the sail and centerboard. Keep the keel - maybe smooth
it out and reduce ballast a bit. Stick a 9hp outboard on there,
and what do you get?
A disaster maybe? :)
This boat interested me because of their confidence in it's
seaworthiness.
I wish Mr. Bolger had a nice web resource like a lot of these other
designers. It would be very helpful to have a one-stop spot to
check out his designs. Anyway, I'm still looking for that ultra-
economy powerboat micro-cruiser. Any more thoughts on this topic?
-Carl
it. How's this for an idea...
Build an AD14 (from http://www.boatplans-online.com)
...without the sail and centerboard. Keep the keel - maybe smooth
it out and reduce ballast a bit. Stick a 9hp outboard on there,
and what do you get?
A disaster maybe? :)
This boat interested me because of their confidence in it's
seaworthiness.
I wish Mr. Bolger had a nice web resource like a lot of these other
designers. It would be very helpful to have a one-stop spot to
check out his designs. Anyway, I'm still looking for that ultra-
economy powerboat micro-cruiser. Any more thoughts on this topic?
-Carl