Re: [bolger] Re: Fast Brick question
John the webpage you posted wouldn't come up for me. Also the aft part of the float is not used as a planing surface.
I was looking at my PILOT'S LOGBOOK and I see a number of listings for a Piper Super Cub that was on floats at the time, I was flying it. Dad trusted me with his price and joy! Dad last fall Dad celibrated 66 years flying, and with over 12,000 hours in a logbook, and 70% of that time was flying on floats.
John if you wish let's take this out of the group. I don't think the group wants to read about aircraft hull forms.
Blessings Kristine
nq2u2 <nq2u2@...> wrote:
The floats on modern float planes are shaped such that the rear of the
float can act like a planning surface. When the pilot pulls the nose
up during take-off he/she pulls the displacement part of hull (the
front part) out of the water so that just the rear part of the hull
(the planning part) remains in the water, reducing hull drag and
allowing a faster airspeed. This procedure is called getting on the
"step". You can see the shape of the floats in the wikipedia article
http://en.wikipedia.org/wiki/Floatplane.See the third photo
captioned "A De Havilland Canada DHC-6 Twin Otter floatplane in West
Coast Air livery"
John Hess
---------------------------------
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I was looking at my PILOT'S LOGBOOK and I see a number of listings for a Piper Super Cub that was on floats at the time, I was flying it. Dad trusted me with his price and joy! Dad last fall Dad celibrated 66 years flying, and with over 12,000 hours in a logbook, and 70% of that time was flying on floats.
John if you wish let's take this out of the group. I don't think the group wants to read about aircraft hull forms.
Blessings Kristine
nq2u2 <nq2u2@...> wrote:
The floats on modern float planes are shaped such that the rear of the
float can act like a planning surface. When the pilot pulls the nose
up during take-off he/she pulls the displacement part of hull (the
front part) out of the water so that just the rear part of the hull
(the planning part) remains in the water, reducing hull drag and
allowing a faster airspeed. This procedure is called getting on the
"step". You can see the shape of the floats in the wikipedia article
http://en.wikipedia.org/wiki/Floatplane.See the third photo
captioned "A De Havilland Canada DHC-6 Twin Otter floatplane in West
Coast Air livery"
John Hess
---------------------------------
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[Non-text portions of this message have been removed]
--- Inbolger@yahoogroups.com, Kristine Bennett <femmpaws@...> wrote:
and get off the water shorter. It is also to get the nose of the
aircraft at a lower angle to get better air flow to the engine for
cooling.
float can act like a planning surface. When the pilot pulls the nose
up during take-off he/she pulls the displacement part of hull (the
front part) out of the water so that just the rear part of the hull
(the planning part) remains in the water, reducing hull drag and
allowing a faster airspeed. This procedure is called getting on the
"step". You can see the shape of the floats in the wikipedia article
http://en.wikipedia.org/wiki/Floatplane.See the third photo
captioned "A De Havilland Canada DHC-6 Twin Otter floatplane in West
Coast Air livery"
John Hess
>rocking a float plane on takeoff is to get it over the bow wake hump
> I have also been reading this thread and one of the reasons for
and get off the water shorter. It is also to get the nose of the
aircraft at a lower angle to get better air flow to the engine for
cooling.
>The floats on modern float planes are shaped such that the rear of the
float can act like a planning surface. When the pilot pulls the nose
up during take-off he/she pulls the displacement part of hull (the
front part) out of the water so that just the rear part of the hull
(the planning part) remains in the water, reducing hull drag and
allowing a faster airspeed. This procedure is called getting on the
"step". You can see the shape of the floats in the wikipedia article
http://en.wikipedia.org/wiki/Floatplane.See the third photo
captioned "A De Havilland Canada DHC-6 Twin Otter floatplane in West
Coast Air livery"
John Hess
Hi Kristine,
for him and he liked the idea. But knowing him he will want to make it
a gold plater with center console and a 25 Hp on it! If he does build
one he may just keep it simple.
...snip...
As far as I know, the plans are available only from PB&F.
FWIW, I built the 12' version, completing it about a year ago, but I
haven't ever launched it. It's much too heavy to dolly-launch so I'm
going to try launching it off a utility trailer this season and
running it with a 9.9 Honda. I doubt the hypoxic motor will make more
than 7hp at the 8600' elevation I'll be using it at, so it may not
plane. Construction photos are available on my website if anyone's
interested. I'm thinking it will make an excellent fishing platform.
Right now the boat is surrounded and partially covered by a large
snowdrift, so this season is still some time off. I still can't drive
onto my property up the two-track to my shop, but somebody mercifully
plowed a path on the county road so at least I don't have to snowshoe
in just to reach the property boundary.
Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm
> I know this is going to sound dumb but where can you get plans forthe fast brick? I was telling a friend about it for a simple tender
for him and he liked the idea. But knowing him he will want to make it
a gold plater with center console and a 25 Hp on it! If he does build
one he may just keep it simple.
...snip...
As far as I know, the plans are available only from PB&F.
FWIW, I built the 12' version, completing it about a year ago, but I
haven't ever launched it. It's much too heavy to dolly-launch so I'm
going to try launching it off a utility trailer this season and
running it with a 9.9 Honda. I doubt the hypoxic motor will make more
than 7hp at the 8600' elevation I'll be using it at, so it may not
plane. Construction photos are available on my website if anyone's
interested. I'm thinking it will make an excellent fishing platform.
Right now the boat is surrounded and partially covered by a large
snowdrift, so this season is still some time off. I still can't drive
onto my property up the two-track to my shop, but somebody mercifully
plowed a path on the county road so at least I don't have to snowshoe
in just to reach the property boundary.
Jon Kolb
www.kolbsadventures.com/boatbuilding_index.htm
I know this is going to sound dumb but where can you get plans for the fast brick? I was telling a friend about it for a simple tender for him and he liked the idea. But knowing him he will want to make it a gold plater with center console and a 25 Hp on it! If he does build one he may just keep it simple.
I have also been reading this thread and one of the reasons for rocking a float plane on takeoff is to get it over the bow wake hump and get off the water shorter. It is also to get the nose of the aircraft at a lower angle to get better air flow to the engine for cooling.
You have to climb over the bow wake with any planing hull. One of the reasons a lot of the small boats will not get on plane is the fact most small outboards has to little pitch in the prop. Most are pitched for 10 to 12 kts or less.
Thats one of the reasons why on a light boat you can run more pitch then a heavy one. But with a lot of the small outboards you don't have much choise in the prop pitch. Face it how many people are running boats 20 plus with a 5 to 10 HP outboard?
Christopher Wetherill <wetherillc@...> wrote: I had a cold molded runabout when I was a kid. It was 11' LOA. It
would not plane with 15 hp unless I used a full-blade prop with about
a 15' pitch. The standard prop on the motor was a faired-vane with
less pitch.
V/R
Chris
I have also been reading this thread and one of the reasons for rocking a float plane on takeoff is to get it over the bow wake hump and get off the water shorter. It is also to get the nose of the aircraft at a lower angle to get better air flow to the engine for cooling.
You have to climb over the bow wake with any planing hull. One of the reasons a lot of the small boats will not get on plane is the fact most small outboards has to little pitch in the prop. Most are pitched for 10 to 12 kts or less.
Thats one of the reasons why on a light boat you can run more pitch then a heavy one. But with a lot of the small outboards you don't have much choise in the prop pitch. Face it how many people are running boats 20 plus with a 5 to 10 HP outboard?
Christopher Wetherill <wetherillc@...> wrote: I had a cold molded runabout when I was a kid. It was 11' LOA. It
would not plane with 15 hp unless I used a full-blade prop with about
a 15' pitch. The standard prop on the motor was a faired-vane with
less pitch.
V/R
Chris
--- Inbolger@yahoogroups.com, "fritzdfk" <gaffcat@...> wrote:
>
> I have a 10' Fast Brick with a 10 hp outboard on it. The boat will
> barely plane if, by my self, I let go of the tiller handle and move
> forward. The boat can then be steered by leaning one way or the other.
---------------------------------
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[Non-text portions of this message have been removed]
I had a cold molded runabout when I was a kid. It was 11' LOA. It
would not plane with 15 hp unless I used a full-blade prop with about
a 15' pitch. The standard prop on the motor was a faired-vane with
less pitch.
V/R
Chris
would not plane with 15 hp unless I used a full-blade prop with about
a 15' pitch. The standard prop on the motor was a faired-vane with
less pitch.
V/R
Chris
--- Inbolger@yahoogroups.com, "fritzdfk" <gaffcat@...> wrote:
>
> I have a 10' Fast Brick with a 10 hp outboard on it. The boat will
> barely plane if, by my self, I let go of the tiller handle and move
> forward. The boat can then be steered by leaning one way or the other.
I have a 10' Fast Brick with a 10 hp outboard on it. The boat will
barely plane if, by my self, I let go of the tiller handle and move
forward. The boat can then be steered by leaning one way or the other.
I admit this isn't the safest way to go. Interestingly I have noticed
that the boat will plane better if there is a chop. It will not plane
in smooth water. I have been told that float airplanes can't take off
in smooth water without rocking the plane to release from the water. I
think this is what is going on with the Fast brick. In smooth water
the broad flat hull can't let go of the water and the heavy strakes
at the outside edges of the bottom may aggravate the situation.
Perhaps there needs to be some ripples on the bottom. Hydrofins on the
outboard didn't help.
I have a friend here who recently built a 28' aluminum fishing boat
with a planing hull. The performance was disappointing when launched.
The problem was partly solved by welding approximately 1" transverse
strakes on the bottom at the very aft edge. This is a 1" by 1/4" piece
welded to the bottom crosswise with the 1" length vertical. This seems
completely counterintuitive but the performance was dramatically
better. Perhaps this is what Fast Brick needs.
I haven't tried a larger outboard partly because I think the transom
would need to be beefed up. For anyone thinking of building the boat I
would recommend a stronger transom arrangement as I have had some
problems in that area and the boat is built as designed.
fritz koschmann
--- Inbolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
barely plane if, by my self, I let go of the tiller handle and move
forward. The boat can then be steered by leaning one way or the other.
I admit this isn't the safest way to go. Interestingly I have noticed
that the boat will plane better if there is a chop. It will not plane
in smooth water. I have been told that float airplanes can't take off
in smooth water without rocking the plane to release from the water. I
think this is what is going on with the Fast brick. In smooth water
the broad flat hull can't let go of the water and the heavy strakes
at the outside edges of the bottom may aggravate the situation.
Perhaps there needs to be some ripples on the bottom. Hydrofins on the
outboard didn't help.
I have a friend here who recently built a 28' aluminum fishing boat
with a planing hull. The performance was disappointing when launched.
The problem was partly solved by welding approximately 1" transverse
strakes on the bottom at the very aft edge. This is a 1" by 1/4" piece
welded to the bottom crosswise with the 1" length vertical. This seems
completely counterintuitive but the performance was dramatically
better. Perhaps this is what Fast Brick needs.
I haven't tried a larger outboard partly because I think the transom
would need to be beefed up. For anyone thinking of building the boat I
would recommend a stronger transom arrangement as I have had some
problems in that area and the boat is built as designed.
fritz koschmann
--- Inbolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
>brick I'd love to talk with them
> If anyone has built and used the eight foot version of the fast
> about it...
>
> Does anyone have a link to the cartoon or further info on the design?
>
> Bob
>http://boatbits.blogspot.com/
>
--- In bolger@yahoogroups.com, "Peter Lenihan" <peterlenihan@...>
wrote:
Cabotin..........
Peter
wrote:
>design?
> --- In bolger@yahoogroups.com, "loosemoosefilmworks"
> <loosemoosefilmworks@> wrote:
> >
> > If anyone has built and used the eight foot version of the fast
> brick I'd love to talk with them
> > about it...
> >
> > Does anyone have a link to the cartoon or further info on the
> >can
> > Bob
> > http://boatbits.blogspot.com/
>
> Hi Bob,
> Check out this link,more then half way down the page and you
> see some shots of Jean and Gabys Fast Brick. She handles VERY welland
> is incredibly stable. I only used her a few short times whileL'Anemone
> (ex Le Cabotin) was up on the river.20AS-39%
>
> http://groups.yahoo.com/group/bolger7/files/Le%20Cabotin%20%28%
> 29/Look out for link wrap :-).....it is in the Bolger 7 group,files,le
>
> Sincerely,
>
> Peter Lenihan
Cabotin..........
Peter
>
--- In bolger@yahoogroups.com, "loosemoosefilmworks"
<loosemoosefilmworks@...> wrote:
Check out this link,more then half way down the page and you can
see some shots of Jean and Gabys Fast Brick. She handles VERY well and
is incredibly stable. I only used her a few short times while L'Anemone
(ex Le Cabotin) was up on the river.
http://groups.yahoo.com/group/bolger7/files/Le%20Cabotin%20%28%20AS-39%
29/
Sincerely,
Peter Lenihan
<loosemoosefilmworks@...> wrote:
>brick I'd love to talk with them
> If anyone has built and used the eight foot version of the fast
> about it...Hi Bob,
>
> Does anyone have a link to the cartoon or further info on the design?
>
> Bob
> http://boatbits.blogspot.com/
Check out this link,more then half way down the page and you can
see some shots of Jean and Gabys Fast Brick. She handles VERY well and
is incredibly stable. I only used her a few short times while L'Anemone
(ex Le Cabotin) was up on the river.
http://groups.yahoo.com/group/bolger7/files/Le%20Cabotin%20%28%20AS-39%
29/
Sincerely,
Peter Lenihan
As he said himself, Rocky's 9.9 looks huge on the 12 foot boat.
http://www.kolbsadventures.com/fastbrick_hardwared_mounted_stern.jpg
http://www.kolbsadventures.com/fastbrick_hardwared_mounted_stern.jpg
On Mar 24, 2008, at 4:03 PM, loosemoosefilmworks wrote:
>
> Questions of import being...What HP can I get away with outboard
> wise ( I have both a 5HP
> and a 15HP 3 stroke) and what is the all up weight on the boat...Of
> course I'd love a report on
> performance.
>
>>
>> The MAIB article is archived in the Bolger2 files.
>
>
Mark....Thanks for that! I still would love to have a brief chat with anyone who has built and
used the Fast Brick in the eight foot version. I'm sort of have to make a decision on the next
dinghy in the next couple of days as we are sailing down to Trinidad within the week and I
need to sort out all the bits in a hurry...
Questions of import being...What HP can I get away with outboard wise ( I have both a 5HP
and a 15HP 3 stroke) and what is the all up weight on the boat...Of course I'd love a report on
performance.
The other alternaitve is the Reubens Nymph. I've always liked the Nymph ( I've built a dozen
of them) but would like to get someones opinion on the reubens in terms of how well it
rows/tows.
Bob
http://boatbits.blogspot.com/
used the Fast Brick in the eight foot version. I'm sort of have to make a decision on the next
dinghy in the next couple of days as we are sailing down to Trinidad within the week and I
need to sort out all the bits in a hurry...
Questions of import being...What HP can I get away with outboard wise ( I have both a 5HP
and a 15HP 3 stroke) and what is the all up weight on the boat...Of course I'd love a report on
performance.
The other alternaitve is the Reubens Nymph. I've always liked the Nymph ( I've built a dozen
of them) but would like to get someones opinion on the reubens in terms of how well it
rows/tows.
Bob
http://boatbits.blogspot.com/
--- Inbolger@yahoogroups.com, Mark Albanese <marka@...> wrote:
>
> The MAIB article is archived in the Bolger2 files.
The MAIB article is archived in the Bolger2 files.
On Mar 24, 2008, at 8:42 AM, loosemoosefilmworks wrote:
> snip
> Does anyone have a link to the cartoon or further info on the design?
>
> Bob
>http://boatbits.blogspot.com/
>
If anyone has built and used the eight foot version of the fast brick I'd love to talk with them
about it...
Does anyone have a link to the cartoon or further info on the design?
Bob
http://boatbits.blogspot.com/
about it...
Does anyone have a link to the cartoon or further info on the design?
Bob
http://boatbits.blogspot.com/