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| Slight Vee or Flat pad ? http://hpbc.ca/viewtopic.php?f=19&t=760 |
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| Author: | OneCycle [ November 17th, 2012, 7:26 pm ] |
| Post subject: | Slight Vee or Flat pad ? |
so most pads are flat but the challengers have a slight vee to them .... what are the benefits and draw backs between the two ? |
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| Author: | DoktorC [ November 17th, 2012, 7:42 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
Multi-hedral obviously..... |
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| Author: | Jeff Yammer [ November 17th, 2012, 8:56 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
A dead plate pad is easier to drive but you won't get more boat out of the water other then the flat pad itself. . . an Allison has a very slight rocker from port to starboard which allows for the lowest amount of area to be in the water at max speed. Only downfall is that it's harder to drive but once you master it it's faster with the same power. Just my thoughts and proven logic.  )
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| Author: | AnthonySS [ November 18th, 2012, 9:28 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
Good Comments Jeff. Simply put a V’d Pad will provide a softer rider in rough water than a flat pad…a good example of V’d pad can found on a Fountain V. Considering this is basically an Offshore Hull you understand the logic. Other considerations put into pad design includes : Boat Planning, lift, efficiency, and tracking. Generally a wide flat pad will provide good planning but may not track very well and lack efficiency due to increased wetted surface. The opposite can be said for narrower pads. Thus the Allison Pad has the best of both worlds for planning and efficiency. Now look at an STV pad…its wide but has strakes built into it for extra lift, good tracking thus also increasing efficiency. And then we can also discuss hooks and rockers 
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| Author: | DoktorC [ November 18th, 2012, 9:42 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
AnthonySS wrote: Generally a wide flat pad will provide good planning but may not track very well and lack efficiency due to increased wetted surface. The opposite can be said for narrower pads. Thus the Allison Pad has the best of both worlds for planning and efficiency. Now look at an STV pad…its wide but has strakes built into it for extra lift, good tracking thus also increasing efficiency. And then we can also discuss hooks and rockers I notice the challenger seems to have a fairly narrow pad....I'm thinking a wider pad on a heavier boat like this may carry weight better and help the boat run cleaner. That being said I'd give the dude who designed the boat some credit (or copy the Tuff pad) and just blueprint what is there. That hull design has run over 100 so there's a greater chance you eff it up if you try and change it.....make it level and sharp...and call it a day. |
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| Author: | AnthonySS [ November 18th, 2012, 10:06 pm ] | |||
| Post subject: | Re: Slight Vee or Flat pad ? | |||
Not a great pic...but you can see the narrow pad on the tuff ...and you can see it work well
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| Author: | DoktorC [ November 18th, 2012, 10:18 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
AnthonySS wrote: Not a great pic...but you can see the narrow pad on the tuff ...and you can see it work well I always thought Mark added width to the pad....I know its different than the Challenger...the bottom of the Tuff is clearly faster. But like I said...I'm a driver (who likes to spout off on the internet  ) and not so much a designer lol...I'd say Linder and Mark have that bottom figured out so I wouldn't mess with it other than blueprinting....AND this is of course assuming we're talking about James' boat that getting bottom work at the moment...
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| Author: | OneCycle [ November 18th, 2012, 10:22 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
from what i remember looking at Blake's the pad isn't Triad Wide but its not challenger skinny... heres a better view of the tuffs bottom...lol 
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| Author: | OneCycle [ November 18th, 2012, 10:53 pm ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
Here's some info ... i found figured i would share.. Mine is 1350lbs with no motor, rigging or seats and the tuff is 2100lbs with a 300X Tuff  Challenger 
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| Author: | SHIVERS [ November 19th, 2012, 1:40 am ] |
| Post subject: | Re: Slight Vee or Flat pad ? |
I think the tuff pad is 1" wider than the challenger!been more than a year since I had the discussion with Mark, so check the number before building! |
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