Promarine?

[Darin Jordan]

You sure Darin? I know Manuel set the Q record at that event, but later gave it up to Andi...I'm not sure he ran in P. I thought that record was still Boyd's.

That could be the case. You are right about Manuel and Andreas though. It was Q.

[Fluid]

Yes and that's the reason why impba p cat is at 78.xx and namba is over 100.

I'm not so certain. I set a NAMBA SAW record in 2004 in P-Offshore of 74 mph on 12 round cells and a Hacker B-50 motor in a wooden cat. I finally upped it in 2012 to the mid-80s with a single Castle 1515/1Y in a Skunkworks2 cat. That motor was too small for the amps, no matter the setup trying to go faster just resulted in more heat....classic example of motor coil saturation. With a 1521 I'm pretty sure there was near 100 in the boat.

That said it is easier to run higher speeds with twins. The potential for twice the power means high speeds if the cat can stay on the water.



.

[kfxguy]

I'm not so certain. I set a NAMBA SAW record in 2004 in P-Offshore of 74 mph on 12 round cells and a Hacker B-50 motor in a wooden cat. I finally upped it in 2012 to the mid-80s with a single Castle 1515/1Y in a Skunkworks2 cat. That motor was too small for the amps, no matter the setup trying to go faster just resulted in more heat....classic example of motor coil saturation. With a 1521 I'm pretty sure there was near 100 in the boat.

That said it is easier to run higher speeds with twins. The potential for twice the power means high speeds if the cat can stay on the water..

I agree. My thoughts are with a twin you have an advantage of being able to run higher kv motors on less cells and pull less amps. I might be wrong (I'm doubting that tho) but I can't seem to fathom how two motors would have a harder time pushing the same hull as a single motor setup. There's more to it than that I know but I was thinking about this on the way home. I even thought about proving it, because I feel like I can. Say I take a 32" cat. I put one 1415 2400kv motor in it. I run it on 4s and say it runs 65mph on 4s. (I've done a setup like this in a similar boat). Then I put two of the same motors in the same hull (fits because I built a 32" cat with this setup) and I run the same props as I had on the single and the same voltage....I can't see how it wouldn't go faster. Yes the twin will have a little more weight to it, but not that much. I also feel like the electronics would be stressed less and you could even get away with more prop than you could with the single and the benefits of that are pretty great. You don't have to give the rudder trim to offset the prop walk with big props like you would on a single, boat goes straighter naturally. Maybe I'm wrong....but it sure seems like twins naturally have a decent advantage.


And yes jay your right, with a 1521 you would have gotten close or even went over 100. I've been 97.5 with the same hull with a 1521 and that was with crap props and my limited experience. You would surely pass 100 with that setup. I'm almost finished another one that should do it with the props I have available now.


.[/QUOTE]

[Darin Jordan]

Travis, you are definitely right... twins, properly running, are definitely more stable in a cat. Many, many attempts to put way too much power through my little 25" N2-Cat has clearly illustrated that ! Umph!

[keithbradley]

It's always entertaining to watch the single motor guys talk about how much faster twins are.

I would agree with what most of Jay said, with the exception of "potential for twice the power". The same power is in the boat whether one or two motors are utilized. Twins handle better when it comes to going fast, and they can accelerate much faster. They do not however have the ability to increase the potential energy in the boat/lipos.

To be fair, the IMPBA S-cat and T-cat records (not restricted to one motor) were also in the same speed range not too long ago. When I started running my cats at SAW events a couple years ago, the Q-cat record was the highest at around ~90mph. I guess the moral of the story is, if you think a record is soft, go to an event and take it! ANY record will stand until somebody steps up and proves they can do better.

I was at the Huntsville event (nice venue!) and I wish I could say more about the Promarine cats, but to be honest I was busy all day. Between talking with people (that certainly happens at events where you get to meet new racers) and trying to diagnose issues that some of us were having, I didn't have a lot of time to watch while Mike was running. From what I did see, the cats did seem to run pretty well. I can't really answer the type of questions Terry has about it, but that's a little above my pay-grade anyway.. The layups looked to be a bit better/thicker than some of the other RTR cats out there. I would definitely reinforce one if I planned on running 100mph or something, but for oval racing and typical sport running, I think they are likely pretty solid.
The MTI style hull looks like it would nicely accommodate twins...just sayin'.

[keithbradley]

Travis, you are definitely right... twins, properly running, are definitely more stable in a cat. Many, many attempts to put way too much power through my little 25" N2-Cat has clearly illustrated that ! Umph!

I've ran that hull with a single motor as well and I can testify to the notion of it being a "handful" to say the least. That is probably the hardest-to-drive setup I've ever run. Much respect to you for doing what you have with it Darin!

[Darin Jordan]

I've ran that hull with a single motor as well and I can testify to the notion of it being a "handful" to say the least. That is probably the hardest-to-drive setup I've ever run. Much respect to you for doing what you have with it Darin!

I think the real King with this hull has to be Manuel Wenny! He has one setup with tiny twin P-systems in his, and got it into the mid-90s! Pretty amazing.

Once the hull is on-step with the single, it runs perfectly. Getting it there... with a REAL prop on it... well...

[Doby]

And back on topic we go.....so did anyone actually see/run Promarine hulls ? How did they do? How did they handle?

Given the hype before the event, and the lack of it afterwards, should we draw our own conclusions?

[kfxguy]

And back on topic we go.....so did anyone actually see/run Promarine hulls ? How did they do? How did they handle?

Given the hype before the event, and the lack of it afterwards, should we draw our own conclusions?

Yea it is pretty odd that he was all hyped up and then afterwards (been over two days now) nothing.


Edit. I would text him and tell him to pop in here but last time I text him he didn't respond. I don't chase after people.

[arrover]

I just noticed that his web page has been redone. http://www.promarinerc.com/ . I'm interested in the MTR but there isn't much information out yet on how these run. It's a little tougher sell when they are a new company VS someone like ProBoat when they release new RTRs.

This was posted on their facebook page on Nov 28th: "First I want to thank everyone who has supported Pro Marine RC in this awesome adventure & venture ! You guys make it fun !
Second, did we set a record ? No. We learned a lot more and really got some attention with the SKATER & MTR boats !
We were close, but the p class in IMPBA is a whole new level . We have a great hull , we need more motor and with what it takes to set records here, WE WILL BE BACK ! It's within our reach !"

[kfxguy]

I'm not sure how he'd be close. The stock motor on 4s might be in the 50's (I'm being generous) because he said on 6s he's seen around 70mph.



I guess he is taking my advice and not battling in the forums anymore. I guess that about sums it up on his website. Now it's going to take getting this thing in the hands of some known people and them giving their take on it. Getting people's attention is one thing, but people actually buying it is another. He's got all of our attention because it looks cool, but does it really perform? Keith said he saw it in person and it looks like a better layup than a normal rtr so that's a plus.

[photohoward1]

Does anybody turn Right?

[properchopper]

And back on topic we go.....so did anyone actually see/run Promarine hulls ? How did they do? How did they handle?

Given the hype before the event, and the lack of it afterwards, should we draw our own conclusions?

"Many years ago there lived an emperor who cared only about his clothes and about showing them off. One day he heard from two swindlers that they could make the finest suit of clothes from the most beautiful cloth. This cloth, they said, also had the special capability that it was invisible to anyone who was either stupid or not fit for his position.

Being a bit nervous about whether he himself would be able to see the cloth, the emperor first sent two of his trusted men to see it. Of course, neither would admit that they could not see the cloth and so praised it. All the townspeople had also heard of the cloth and were interested to learn how stupid their neighbors were.

The emperor then allowed himself to be dressed in the clothes for a procession through town, never admitting that he was too unfit and stupid to see what he was wearing. For he was afraid that the other people would think that he was stupid.

Of course, all the townspeople wildly praised the magnificent clothes of the emperor, afraid to admit that they could not see them, until a small child said:

"But he has nothing on"!

[T.S.Davis]

It's a little tougher sell when they are a new company VS someone like ProBoat when they release new RTRs.

Agreed. Proboat has/had Darin that has a reputation and AQ had Mike Z who would use the team racers for feedback on new stuff prior to market.

I race. I want to know about racing it. That rot I posted earlier about how it behaves.

We may have to just get one to ever get that kind of data. That's what we did with the Pursuit. Liked the way they looked, bought some from FighterCat back then, and raced em. Turned out pretty well. The trouble with these is that they are only available as RTR. I have no interest in the SSS motor and what am I going to do with a low end Flysky radio really? Add it to the pile of Tactic and Proboat radios I don't use I guess.

Apparently just you n' me Howard. Just you n' me. haha

Tony.......that's glorious.

[properchopper]

Does anybody turn Right?

C'mon, H ;don't confuse the ZSP/WTS guys.......