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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 |
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??? |
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 |
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!" |
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!" |
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!" |
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 |
Do Hydrofoils Work???
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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!" |
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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