P sport hydro setups..hulls and motors...need help

[Kroggs]

Not sure I'd attack the guy responsible for getting so many involved with the hobby like that! Other than pin holes and a few rough spots on mine I'm very happy with my PT Stealth.

[tjsb]

Like I said there must of been well over 100 pin hole that had to be open up to take filler and the mold details suck.Ive seen even cheap glass boats that better QT,

[Rlimits]

PT-13.jpg Here is my PT did not think it was that bad just used a good primer which took care of most pin holes.

[Kroggs]

Wow! That paint job, very nice

[Rlimits]

Wow! That paint job, very nice

Thank you that is a hydro dip.

[Bande1]

Like I said there must of been well over 100 pin hole that had to be open up to take filler and the mold details suck.Ive seen even cheap glass boats that better QT,

in defense on Mr. Thomas the reason for that is a lack of gel coat which is awesome. Gel coat gets old and cracks through paint. Pinholes are easily filled with either polyester primer, 2k urethane primer, or good old 3m spot putty.

[tjsb]

Yes I've painted a lot of cars in my day, Still his molds need a tune up and he could do a much better job with the layup.

[Bande1]

its not the molds its air bubbles in the resin.

[keesey]

its not the molds its air bubbles in the resin.

Not sure if he?s using vacuum infusion or just laying up but vacuum infusion is the way to go, and eliminates a lot of bubble issues.


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[T.S.Davis]

I've built 4 Thomas boats......I think. With Phil's boat you are buying his millennium of experience and not the finish. To win the pin hole battle, I recommend following Phil's advice. Use vinyl spackle. Works killer. The designs are pretty solid and Phil's stuff has held gobs of record. The last national championship for me was with a Stealth. That said, we may have exceeded the speed limitations of the 31" version. Maybe....... I haven't gone back to one lately. I'm down to three Thomas boats in the fleet at the moment. I wouldn't hesitate to hand one to a new racer to race with us. There is something special about a Thomas boat at full chap too. The sponson slap is just different.

I've built at least 10 Black Pearls. Those have been staples in my fleet for years and the designs have set and reset the IMPBA records repeatedly. Multiple championships. Here again though.......we might have hit the wall on the design. OR.....someone needs to spend more time with it to find the NEW sweet spot. With Pearls, I like to think of myself as part of the experiment. Pete, the guy that designed and sold them never cared about them like a business. He's just one of us. A boat nerd willing to share his stuff. We exchanged a ton of data and texts on the designs over the years. Tweaks this way or that. So fun.

I've built a half dozen Blazer Whiplash now........I think. The Blazer designs have set so many records and won so many championships I doubt it's even track-able any more. The new design holds the current P sport record. I've only taken on one of the latest Blazer Whips and only recently. Almost done. I did get frustrated building the smaller version but I think that was due to a couple of things. The first being that some of the framing is under tension. I don't like that myself that but it wasn't fair for me to pass judgment. All of Brian's boats included some frames under tension as far back as I go. I'm quite certain it's deliberate. The second being my lack inexperience with this particular version. When you build 10 Pearls you get a feel for the tricky spots. I didn't have that to draw on and whined like a child about it. LOL The earlier designs didn't include provisions for FE so we all did our own thing to make them work. The latest version has all the space you could ever want inside for batteries.

10 cents worth.

[phil t]

I've built 4 Thomas boats......I think. With Phil's boat you are buying his millennium of experience and not the finish. To win the pin hole battle, I recommend following Phil's advice. Use vinyl spackle. Works killer. The designs are pretty solid and Phil's stuff has held gobs of record. The last national championship for me was with a Stealth. That said, we may have exceeded the speed limitations of the 31" version. Maybe....... I haven't gone back to one lately. I'm down to three Thomas boats in the fleet at the moment. I wouldn't hesitate to hand one to a new racer to race with us. There is something special about a Thomas boat at full chap too. The sponson slap is just different.

I've built at least 10 Black Pearls. Those have been staples in my fleet for years and the designs have set and reset the IMPBA records repeatedly. Multiple championships. Here again though.......we might have hit the wall on the design. OR.....someone needs to spend more time with it to find the NEW sweet spot. With Pearls, I like to think of myself as part of the experiment. Pete, the guy that designed and sold them never cared about them like a business. He's just one of us. A boat nerd willing to share his stuff. We exchanged a ton of data and texts on the designs over the years. Tweaks this way or that. So fun.

I've built a half dozen Blazer Whiplash now........I think. The Blazer designs have set so many records and won so many championships I doubt it's even track-able any more. The new design holds the current P sport record. I've only taken on one of the latest Blazer Whips and only recently. Almost done. I did get frustrated building the smaller version but I think that was due to a couple of things. The first being that some of the framing is under tension. I don't like that myself that but it wasn't fair for me to pass judgment. All of Brian's boats included some frames under tension as far back as I go. I'm quite certain it's deliberate. The second being my lack inexperience with this particular version. When you build 10 Pearls you get a feel for the tricky spots. I didn't have that to draw on and whined like a child about it. LOL The earlier designs didn't include provisions for FE so we all did our own thing to make them work. The latest version has all the space you could ever want inside for batteries.

10 cents worth.

Allthese boats have pros and cons, wood has to be built correctly and finished, epoxyboats are good for durability but do have to be primed and painted properly.
The Stealth 30" is good for P sport for sure, it my not be enough for P sport power. What would you think of a Stealth 33" hull?

[T.S.Davis]

Allthese boats have pros and cons, wood has to be built correctly and finished, epoxyboats are good for durability but do have to be primed and painted properly.
The Stealth 30" is good for P sport for sure, it my not be enough for P sport power. What would you think of a Stealth 33" hull?

I think that's a great idea Phil. I'm up to my neck in Whip builds at the moment though.

Something that may be of value if you're designing something new is a steel rod laid across the canard, the nose, and into the sponsons. With some plating in each sponson. Something I've run into with every P or Q boat is them attempting to rip themselves in half. We're carrying so much weight. I've actually done the math too. A 5.2 pound nitro Sport 20 boat at 70 mph around a 40 ft radius weighs in 19 pounds due to G Force. Hanging from the fin and rudder essentially. That's in a vacuum though. With no fin slip. A 70 mph P sport weighs about 36 pounds. Even if with fin slip the force is less, the strain on a P boat is insane versus the nitro.

[T.S.Davis]

Here's what I do with the Pearl. The point where the tub meets the sponson is a weak point in my experience.

20220120_091050.jpg

[phil t]

My new gas sport Stealth hydro has a carbon fiber tube across the front wing to stiffen up the sponson to hull.
467834783_1109549797518069_160911955085804786_n.jpg

[T.S.Davis]

My new gas sport Stealth hydro has a carbon fiber tube across the front wing to stiffen up the sponson to hull.

Brilliant Phil. That's what I'm talk'n about. They pull some G's too.