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dad2468 August 3rd 03 05:26 AM

Do Hydrofoils Work???
 
Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to be
on plane at a slower speed. I usually have to be going about 15 or 20mph to
get on plane.
Any Ideas???
Randy



Floyd in Tampa August 3rd 03 05:40 AM

Do Hydrofoils Work???
 
I put a Cobra SS Edge hydrofoil on my Monterey 196/4.3L/190hp and am
satisfied with the change in performance. I have a lowered on-plane speed,
and am also able to raise the bow more when running in heavier waves to
prevent stuffing the bow into a wave. I lose a couple of mph at top end,
but don't miss them. If you get the SS version, don't bother with the black
one, since all the paint came off mine within a month. Here's the link to
the Cabelas one:
http://www.cabelas.com/cabelas/en/te...tem.jhtml?id=0
000917010805a&navAction=jump&navCount=0&indexId=&p odId=0000917&catalogCode=I
D&parentId=&parentType=&rid=&cmCat=search

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to

be
on plane at a slower speed. I usually have to be going about 15 or 20mph

to
get on plane.
Any Ideas???





Tony Thomas August 3rd 03 03:53 PM

Do Hydrofoils Work???
 
Yes, they work as others have said.
Trim tabs are better as they allow you to adjust side to side and adjust
amount of bow down force. However, on this boat some poeple may immediately
ask what was wrong w/ the boat to warrent them. People are used to seeing
them on larger cruiser type boats but not bowriders. I personally would
love to have them but may scare someone who is not familiar w/ boats.

Bottom line, try the fin and see if it suits your needs first since price is
a big factor on trim tabs. I prefer the dolfin brand as it tends to have
more down force.

--
Tony
My boats and autos - http://t.thomas.home.mchsi.com



"dad2468" wrote in message
...
Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to

be
on plane at a slower speed. I usually have to be going about 15 or 20mph

to
get on plane.
Any Ideas???
Randy





Larry August 3rd 03 04:59 PM

Do Hydrofoils Work???
 
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to be
on plane at a slower speed. I usually have to be going about 15 or 20mph to
get on plane.
Any Ideas???
Randy


Before you go whole hog with the dragfin, have you tried a little
weight and balance adjustments?

Go to a hardware store and buy some empty sandbags. They're real
cheap. Fill them at the beach and put them in a plastic kitchen trash
plastic bag to keep the leakage to zero. Pack a few into the bow,
way up into the point, and hold them there with some kind of strut
like a 2x4 or boat paddle. 100# of sand way up in front, even just
sitting on deck, is like adding a 250# passenger to the bow when the
boat is plowing just before planing....without 150# more weight. The
mass also helps keep the bow from bouncing up and down with the
pressure from thrust and wave action....makes it ride smoother.

I have a little Sea Rayder F16XR2 16' jetboat with the 175hp Merc
Sport Jet power. There's 125# of sandbags in front of a wooden dam up
in the bow forward of the bow seat locker to make the boat plane
faster and act "bigger". Keeps the pounding down, too, in waves.

On the port side, up inside between the cockpit bulkhead and hull
higher than the waterline is a row of sandbags weighing about 90# as
far up as I can stuff them, again held in place by a wooden dam to
keep them from shifting. This counterbalances some of my weight
driving from the starboard driver's seat while alone. When a second
passenger is added (think bikini clad female on the way to the beach),
she sits in the CENTER seat next to me, not way "over there" on the
left because when she came aboard the boat was already "balanced" for
the driver. She's just keeping it balanced on centerline.....(c;

No underwater or stern fins are necessary draggin on the speed and
performance.



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"


kshoaps August 3rd 03 05:12 PM

Do Hydrofoils Work???
 
Seems to me that adding 215# of sand in a small boat will degrade
performance also. Interesting to know if a fin or the extra weight causes
more decrease in performance--my guess is that you'd be better off with the
fin.
"Larry" wrote in message
...
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to

be
on plane at a slower speed. I usually have to be going about 15 or 20mph

to
get on plane.
Any Ideas???
Randy


Before you go whole hog with the dragfin, have you tried a little
weight and balance adjustments?

Go to a hardware store and buy some empty sandbags. They're real
cheap. Fill them at the beach and put them in a plastic kitchen trash
plastic bag to keep the leakage to zero. Pack a few into the bow,
way up into the point, and hold them there with some kind of strut
like a 2x4 or boat paddle. 100# of sand way up in front, even just
sitting on deck, is like adding a 250# passenger to the bow when the
boat is plowing just before planing....without 150# more weight. The
mass also helps keep the bow from bouncing up and down with the
pressure from thrust and wave action....makes it ride smoother.

I have a little Sea Rayder F16XR2 16' jetboat with the 175hp Merc
Sport Jet power. There's 125# of sandbags in front of a wooden dam up
in the bow forward of the bow seat locker to make the boat plane
faster and act "bigger". Keeps the pounding down, too, in waves.

On the port side, up inside between the cockpit bulkhead and hull
higher than the waterline is a row of sandbags weighing about 90# as
far up as I can stuff them, again held in place by a wooden dam to
keep them from shifting. This counterbalances some of my weight
driving from the starboard driver's seat while alone. When a second
passenger is added (think bikini clad female on the way to the beach),
she sits in the CENTER seat next to me, not way "over there" on the
left because when she came aboard the boat was already "balanced" for
the driver. She's just keeping it balanced on centerline.....(c;

No underwater or stern fins are necessary draggin on the speed and
performance.



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"




Tony Thomas August 3rd 03 05:14 PM

Do Hydrofoils Work???
 
All that weight in the bow costing you in fuel while trailering and costing
you in performance and fuel in the boat. A jet boat you don't have much
trim and no other way to adjust.
Don't do this on a boat w/ trim. The fin will not affect much of anything
at full trim and will help on the low side. Weight affects everything.

--
Tony
My boats and autos - http://t.thomas.home.mchsi.com



"Larry" wrote in message
...
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to

be
on plane at a slower speed. I usually have to be going about 15 or 20mph

to
get on plane.
Any Ideas???
Randy


Before you go whole hog with the dragfin, have you tried a little
weight and balance adjustments?

Go to a hardware store and buy some empty sandbags. They're real
cheap. Fill them at the beach and put them in a plastic kitchen trash
plastic bag to keep the leakage to zero. Pack a few into the bow,
way up into the point, and hold them there with some kind of strut
like a 2x4 or boat paddle. 100# of sand way up in front, even just
sitting on deck, is like adding a 250# passenger to the bow when the
boat is plowing just before planing....without 150# more weight. The
mass also helps keep the bow from bouncing up and down with the
pressure from thrust and wave action....makes it ride smoother.

I have a little Sea Rayder F16XR2 16' jetboat with the 175hp Merc
Sport Jet power. There's 125# of sandbags in front of a wooden dam up
in the bow forward of the bow seat locker to make the boat plane
faster and act "bigger". Keeps the pounding down, too, in waves.

On the port side, up inside between the cockpit bulkhead and hull
higher than the waterline is a row of sandbags weighing about 90# as
far up as I can stuff them, again held in place by a wooden dam to
keep them from shifting. This counterbalances some of my weight
driving from the starboard driver's seat while alone. When a second
passenger is added (think bikini clad female on the way to the beach),
she sits in the CENTER seat next to me, not way "over there" on the
left because when she came aboard the boat was already "balanced" for
the driver. She's just keeping it balanced on centerline.....(c;

No underwater or stern fins are necessary draggin on the speed and
performance.



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"




noah August 3rd 03 11:50 PM

Do Hydrofoils Work???
 
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to be
on plane at a slower speed. I usually have to be going about 15 or 20mph to
get on plane.
Any Ideas???
Randy


Worked great for me.

1993 Starcraft 3.0 liter I/O.
Bowrider, Fish 'n Ski

Before I added the Doelphin, this boat was miserable to drive. The
bow would not come down until I hit 25mph, with the nose in the air.
After that, it porpoised until I was ready to scream (tilt: full down,
trim: full down).

I bolted on the doelphin, and it behaved like a different boat. Gets
on plane quickly, doesn't porpoise, and I actually have to use a
little "trim up" at speed.

I didn't notice any loss of top speed. Since pitot tube speedometers
aren't known for accuracy, I may have lost 1 or 2 mph, but I don't
think so. If I did, it's worth it to have a quick plane-off, and a
smooth ride.

noah

Courtesy of Lee Yeaton,
See the boats of rec.boats
www.TheBayGuide.com/rec.boats

Bchbound August 4th 03 02:10 AM

Do Hydrofoils Work???
 
In my boat every square inch of sapce is useful. Putting in sand bags is
like buying a smaller, heavier boat.
Why reduce living/cargo space to save a few bucks?
It might be me but I just dont get it!

In article ,
says...
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able to be
on plane at a slower speed. I usually have to be going about 15 or 20mph to
get on plane.
Any Ideas???
Randy


Before you go whole hog with the dragfin, have you tried a little
weight and balance adjustments?

Go to a hardware store and buy some empty sandbags. They're real
cheap. Fill them at the beach and put them in a plastic kitchen trash
plastic bag to keep the leakage to zero. Pack a few into the bow,
way up into the point, and hold them there with some kind of strut
like a 2x4 or boat paddle. 100# of sand way up in front, even just
sitting on deck, is like adding a 250# passenger to the bow when the
boat is plowing just before planing....without 150# more weight. The
mass also helps keep the bow from bouncing up and down with the
pressure from thrust and wave action....makes it ride smoother.

I have a little Sea Rayder F16XR2 16' jetboat with the 175hp Merc
Sport Jet power. There's 125# of sandbags in front of a wooden dam up
in the bow forward of the bow seat locker to make the boat plane
faster and act "bigger". Keeps the pounding down, too, in waves.

On the port side, up inside between the cockpit bulkhead and hull
higher than the waterline is a row of sandbags weighing about 90# as
far up as I can stuff them, again held in place by a wooden dam to
keep them from shifting. This counterbalances some of my weight
driving from the starboard driver's seat while alone. When a second
passenger is added (think bikini clad female on the way to the beach),
she sits in the CENTER seat next to me, not way "over there" on the
left because when she came aboard the boat was already "balanced" for
the driver. She's just keeping it balanced on centerline.....(c;

No underwater or stern fins are necessary draggin on the speed and
performance.



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"



Larry August 4th 03 02:08 PM

Do Hydrofoils Work???
 
On Sun, 3 Aug 2003 12:12:13 -0400, "kshoaps"
wrote:

Seems to me that adding 215# of sand in a small boat will degrade
performance also. Interesting to know if a fin or the extra weight causes
more decrease in performance--my guess is that you'd be better off with the
fin.

Planes much more level, runs faster under less loading from
misbalanced load....with no extra pieces dragging in the water to haul
down the speed.

Seems to impress the Sea Doo jetboat owners guzzling 30 gallons an
hour...(c;



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"


dad2468 August 5th 03 02:03 AM

Do Hydrofoils Work???
 
Thanks for the advice.
Randy


"kshoaps" wrote in message
...
Seems to me that adding 215# of sand in a small boat will degrade
performance also. Interesting to know if a fin or the extra weight causes
more decrease in performance--my guess is that you'd be better off with

the
fin.
"Larry" wrote in message
...
On Sun, 03 Aug 2003 04:26:05 GMT, "dad2468" wrote:

Do Hydrofoils work and Is there one better than another? I have a
Glastron SX 195 with a 5 liter 220hp motor and I would like to be able

to
be
on plane at a slower speed. I usually have to be going about 15 or

20mph
to
get on plane.
Any Ideas???
Randy


Before you go whole hog with the dragfin, have you tried a little
weight and balance adjustments?

Go to a hardware store and buy some empty sandbags. They're real
cheap. Fill them at the beach and put them in a plastic kitchen trash
plastic bag to keep the leakage to zero. Pack a few into the bow,
way up into the point, and hold them there with some kind of strut
like a 2x4 or boat paddle. 100# of sand way up in front, even just
sitting on deck, is like adding a 250# passenger to the bow when the
boat is plowing just before planing....without 150# more weight. The
mass also helps keep the bow from bouncing up and down with the
pressure from thrust and wave action....makes it ride smoother.

I have a little Sea Rayder F16XR2 16' jetboat with the 175hp Merc
Sport Jet power. There's 125# of sandbags in front of a wooden dam up
in the bow forward of the bow seat locker to make the boat plane
faster and act "bigger". Keeps the pounding down, too, in waves.

On the port side, up inside between the cockpit bulkhead and hull
higher than the waterline is a row of sandbags weighing about 90# as
far up as I can stuff them, again held in place by a wooden dam to
keep them from shifting. This counterbalances some of my weight
driving from the starboard driver's seat while alone. When a second
passenger is added (think bikini clad female on the way to the beach),
she sits in the CENTER seat next to me, not way "over there" on the
left because when she came aboard the boat was already "balanced" for
the driver. She's just keeping it balanced on centerline.....(c;

No underwater or stern fins are necessary draggin on the speed and
performance.



Larry W4CSC

"No, NO, Mr Spock! I said beam me down a WRENCH,
not a WENCH! KIRK OUT!"







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