Re: [bolger] Re: fastbrick outboard

In my Skimmer, my 8HP Honda pops it up on a plane after a few seconds
if only I am aboard. I find that as the number of people increases,
we have to do a little dance to get it to plane. With two adults and
two kids for example, we start out centered and the boat gets going
and once it reaches a steady nose-up, we all move forward until it
planes. Once it is up we can spread back out again.

It would be interesting to hear whether or not this works for you if
you decide to experiment. This same 8HP motor is intended to go to
my 8' Fastbrick which currently exists only on paper.

Mike

On Apr 18, 2006, at 8:49 AM, adventures_in_astrophotography wrote:

> Hi Fritz,
>
> > I have an older 10 hp Honda on my 10' Fastbrick and haven't been
> able
> > to get the boat to plane. Thinking that my old Honda was just
> tired I
> > borrowed a friends new 10 hp Honda the resulte were the same. By the
> > way my friends 10 hp Honda planes his 14' Lund. I have a lower
> pitch
> > prop on order, the smallest diameter and pitch available for my
> > outboard, but it is not much different from the one I have so I
> am not
> > expecting much. I even tried putting some hydrofoil wings on the
> > outboard, no difference. Bolger reccommends 6 to 10 hp for the boat
> > and was very surprised that the boat didn't plane, he
> reccommended the
> > lower pitch prop. I am wondering that the problem might be the
> > relatively large twin skegs on the bottom, I am going to try fairing
> > the leading edges of them more than I have, we'll see.
>
> This is interesting news. I'm planning to put new Honda 9.9 high-
> thrust on my 12' version, and expect it to plane as advertised. In
> fact, Phil faxed a reply to me about this before I started building
> stating that the longer versions should do "at least as well" as
> the 8-
> footer with the same horsepower. Your experience is discouraging, but
> I should have some real data in a month or two after I finish painting
> mine and get a trial run completed. Keep us informed on how the skeg
> modifications go if you decide to try that.
>
> Jon Kolb
> www.kolbsadventures.com/boatbuilding_index.htm
>
>
>
>
>
>
>
> Bolger rules!!!
> - NO "GO AWAY SPAMMER!" posts!!! Please!
> - no cursing, flaming, trolling, spamming, respamming, 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
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>
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Mike Stockstill
mkstocks@...
http://mkstocks.tripod.com/




[Non-text portions of this message have been removed]
On Tue, 18 Apr 2006 06:55:49 -0700, Bruce Hallman wrote:
> Doesn't one version of the Fastbrick design to have the aft run of the
> bottom curve changed to be flat? That certainly would plane better I
> would guess.


If it does, maybe the one he's talking about does not have the flat run aft ... ?

Kenneth Grome
Bagacay Boatworks
I believe that the purpose of Fastbrick was to create
a planing boat with a straight run aft. Somebody will
correct me if I am wrong, but I think FB is basically
a Skimmer with a cutwater, and a number of mods to
make it unsinkable. It ought to plane off and run
fast, given sufficient power. I found Skimmer to be
underpowered for two with the 10 hp called for. Once
you got it up on plane, the boat went like hell,
though. Sam

--- Bruce Hallman <bruce@...> wrote:

> Doesn't one version of the Fastbrick design to have
> the aft run of the
> bottom curve changed to be flat? That certainly
> would plane better I
> would guess.
>


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Doesn't one version of the Fastbrick design to have the aft run of the
bottom curve changed to be flat? That certainly would plane better I
would guess.
Hi Fritz,

> I have an older 10 hp Honda on my 10' Fastbrick and haven't been able
> to get the boat to plane. Thinking that my old Honda was just tired I
> borrowed a friends new 10 hp Honda the resulte were the same. By the
> way my friends 10 hp Honda planes his 14' Lund. I have a lower pitch
> prop on order, the smallest diameter and pitch available for my
> outboard, but it is not much different from the one I have so I am not
> expecting much. I even tried putting some hydrofoil wings on the
> outboard, no difference. Bolger reccommends 6 to 10 hp for the boat
> and was very surprised that the boat didn't plane, he reccommended the
> lower pitch prop. I am wondering that the problem might be the
> relatively large twin skegs on the bottom, I am going to try fairing
> the leading edges of them more than I have, we'll see.

This is interesting news. I'm planning to put new Honda 9.9 high-
thrust on my 12' version, and expect it to plane as advertised. In
fact, Phil faxed a reply to me about this before I started building
stating that the longer versions should do "at least as well" as the 8-
footer with the same horsepower. Your experience is discouraging, but
I should have some real data in a month or two after I finish painting
mine and get a trial run completed. Keep us informed on how the skeg
modifications go if you decide to try that.

Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm
It's probably just the hull shape, it's not designed to plane, is it?

Kenneth Grome
Bagacay Boatworks






On Mon, 17 Apr 2006 18:13:33 -0000, fritzdfk wrote:
> I have an older 10 hp Honda on my 10' Fastbrick and haven't been able
> to get the boat to plane. Thinking that my old Honda was just tired I
> borrowed a friends new 10 hp Honda the resulte were the same. By the
> way my friends 10 hp Honda planes his 14' Lund. I have a lower pitch
> prop on order, the smallest diameter and pitch available for my
> outboard, but it is not much different from the one I have so I am not
> expecting much. I even tried putting some hydrofoil wings on the
> outboard, no difference. Bolger reccommends 6 to 10 hp for the boat
> and was very surprised that the boat didn't plane, he reccommended the
> lower pitch prop. I am wondering that the problem might be the
> relatively large twin skegs on the bottom, I am going to try fairing
> the leading edges of them more than I have, we'll see.
>
>
>
>
>
> Bolger rules!!!
> - NO "GO AWAY SPAMMER!" posts!!! Please!
> - no cursing, flaming, trolling, spamming, respamming, 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
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
I have an older 10 hp Honda on my 10' Fastbrick and haven't been able
to get the boat to plane. Thinking that my old Honda was just tired I
borrowed a friends new 10 hp Honda the resulte were the same. By the
way my friends 10 hp Honda planes his 14' Lund. I have a lower pitch
prop on order, the smallest diameter and pitch available for my
outboard, but it is not much different from the one I have so I am not
expecting much. I even tried putting some hydrofoil wings on the
outboard, no difference. Bolger reccommends 6 to 10 hp for the boat
and was very surprised that the boat didn't plane, he reccommended the
lower pitch prop. I am wondering that the problem might be the
relatively large twin skegs on the bottom, I am going to try fairing
the leading edges of them more than I have, we'll see.