Hard to plane Formula 292 Fastech Race Edition (single)
08-26-2016, 03:51 PM
#11
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What prop are you running? You may need a 5 blade, talking with a prop expert may be beneficial.
Are you using some tab?, that should help and I assume you have K planes.
Curious, how fast is the boat? As you probably know, any large single engine boat isn't going to just pop up on plane.
Are you using some tab?, that should help and I assume you have K planes.
Curious, how fast is the boat? As you probably know, any large single engine boat isn't going to just pop up on plane.
08-26-2016, 04:05 PM
#12
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Is it blowing out when you try to come on plane?
A trick that many of the race boats use with really tall props is to push it up until it JUST starts to blow out.
Then, chop the throttle and let the wake/wave hit the back of the boat.
AS that wake/wave hits the back of the boat, you know have a wall of water that your prop is buried in, AND that wall of water is pushing you upward. USE that all that water to apply power and pop it up on plane.
It takes some practice to get this right, and you definitely don't want to cause reversion by burying your exhaust, with little to no throttle applied.
A trick that many of the race boats use with really tall props is to push it up until it JUST starts to blow out.
Then, chop the throttle and let the wake/wave hit the back of the boat.
AS that wake/wave hits the back of the boat, you know have a wall of water that your prop is buried in, AND that wall of water is pushing you upward. USE that all that water to apply power and pop it up on plane.
It takes some practice to get this right, and you definitely don't want to cause reversion by burying your exhaust, with little to no throttle applied.
08-26-2016, 04:21 PM
#13
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I didn't realize there were 10 built! I'm somewhat familiar with one of these boats, (raced against it in the Great Lakes Silver Cup series in the APBA days).
They were light layup boats with a very high X-dimension, (probably 19"" from keel to crankshaft center-line) to be more competitive in the Factory-1 class. As such, they are not going to "jump" on plane, and will probably cavitate the prop with a lot of throttle when in that transition (getting on plane), especially with a full load of fuel and seats full of passengers.
A good suggestion above is looking at a 5- blade prop, Maximus?). You can also look into a drive spacer. You will lose some top speed but bottom end will be more responsive, you can stay on-plane at lower speeds and handling will probably improve a little. Speaking of, how does it handle at speed? Any chine walk? Did you get a top speed with the HP500 setup?
Good luck! Should be a beautiful boat. Show some pics!
They were light layup boats with a very high X-dimension, (probably 19"" from keel to crankshaft center-line) to be more competitive in the Factory-1 class. As such, they are not going to "jump" on plane, and will probably cavitate the prop with a lot of throttle when in that transition (getting on plane), especially with a full load of fuel and seats full of passengers.
A good suggestion above is looking at a 5- blade prop, Maximus?). You can also look into a drive spacer. You will lose some top speed but bottom end will be more responsive, you can stay on-plane at lower speeds and handling will probably improve a little. Speaking of, how does it handle at speed? Any chine walk? Did you get a top speed with the HP500 setup?
Good luck! Should be a beautiful boat. Show some pics!
08-26-2016, 04:37 PM
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Is it blowing out when trying to get on plane or is it just dragging and slowly building RPM?
If it is blowing out what I did was take the trim rams apart and shortened the inner tubes by 3/4 inch. With this modification it will allow the drive to trim down for more negative trim. You will have to grind in a few places and cut the wings off a little on the bottom of the helmet. My Daytona wouldn't begin to get on plane without this mod.
If it is blowing out what I did was take the trim rams apart and shortened the inner tubes by 3/4 inch. With this modification it will allow the drive to trim down for more negative trim. You will have to grind in a few places and cut the wings off a little on the bottom of the helmet. My Daytona wouldn't begin to get on plane without this mod.
08-26-2016, 04:40 PM
#15
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08-27-2016, 05:25 AM
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A trick that many of the race boats use with really tall props is to push it up until it JUST starts to blow out.
Then, chop the throttle and let the wake/wave hit the back of the boat.
AS that wake/wave hits the back of the boat, you know have a wall of water that your prop is buried in, AND that wall of water is pushing you upward. USE that all that water to apply power and pop it up on plane.
It takes some practice to get this right, and you definitely don't want to cause reversion by burying your exhaust, with little to no throttle applied.[/QUOTE]
Itīs slowly building RPM. When I'm try to get up in the plane on the Poker Runs , I usually put myself far back as I can " surf " the boat in the plan. I have to bring down the nose of a big waves then sticks it off like a shot. It builds the bit on what you say. Good ide! I gone try your trick
Then, chop the throttle and let the wake/wave hit the back of the boat.
AS that wake/wave hits the back of the boat, you know have a wall of water that your prop is buried in, AND that wall of water is pushing you upward. USE that all that water to apply power and pop it up on plane.
It takes some practice to get this right, and you definitely don't want to cause reversion by burying your exhaust, with little to no throttle applied.[/QUOTE]
Itīs slowly building RPM. When I'm try to get up in the plane on the Poker Runs , I usually put myself far back as I can " surf " the boat in the plan. I have to bring down the nose of a big waves then sticks it off like a shot. It builds the bit on what you say. Good ide! I gone try your trick
08-27-2016, 06:09 AM
#19
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