***NEW*** Pro Boat UL-19 30" Sport Hydro

[JAZA NZ]

Any 1 know if the ul-19 and the veles 29 run the same flex cable and prop?

[Clintnz]

Need some help on setting the strut height / angle if anyone can help
Thanks

[CraigP]

There’s a bunch of topics on the UL-19 on this forum... Just do a search for UL-19 and I’m sure you’ll find it.

[Clintnz]

Yer I have done a search but I’m unable to find anything

[MADRCER]

I wonder how fast my new boat will go?



ul19 -2.jpg ul19.jpg

[JimClark]

Depends on how you prep it

Sent from my Moto G (4) using Tapatalk

[MADRCER]

Depends on how you prep it

Sent from my Moto G (4) using Tapatalk

I don't know what that means...

[JimClark]

Then not very fast

I don't know what that means...

[MADRCER]

Then not very fast

Yea, that's what I was afraid of Lol... I'm guessing low to possibly mid 70's with one of my good props on it...

[Brushless55]

Then not very fast

That's awesome! LOL

[CraigP]

Well, maybe this will help... on the initial setup, strut depth set so mid-line of prop shaft on the strut is the same as the depth of the back of the sponsons. Use a flat surface like your kitchen countertop, granite is best. The bottom of the boat should be parallel to the granite top for the first 4-5” from the transom. No angle on strut to start. Bottom of turn fin should be parallel with bottom surface mentioned. Bottom of rudder should also be co-planer, so all three surfaces are parallel. For this setup, need to measure the distance from the mid-line of the strut to the bottom of the strut, probably about 0.15”, but measure it. Move the strut up by this distance, so when the boat sits on the granite, it will be resting on the back of the sponsons and the strut. This position is how it will ride. When rudder and strut are set, move the strut back down that measures distance. Tighten it all up. Set the batteries so that the COG falls at about the mid point of the turn fin. I have a work bench with two, 4” X1” boards attached, running parallel and width set so it sits inside the tunnel. Need at least 1/8” of space between boards and the sides of the tunnel. Get a 1/4”, straight copper tube, place it on the boards and straddle the boat across the air traps. Move the boat back and forth and find the balance point. Tube needs to stay perpendiculr to the boat. Check where the tube is relative to the turn fin, move batteries to the position so it balances midway on the turn fin. Mark the location for easy placement. All gear should be on the boat, including the cowl. Now go out and let her rip! Strongly advice a prop on the smaller side for first run, or your boat could end up looking like this!

[MADRCER]

That's a lot of good stuff there Craig! I hope mine don't end up on the bank like that one! Lol. I need to put my GPS units back on charge and take it out for a spin sometime soon. I'm curious to see how it will stack up against my green boat in the end. Maybe my lake won't freeze over anymore and we might find out sooner than later.

[eric113]

I found when I owned my UL-19 the CG was way off even with moving the battery’s all the way forward. It still was tailheavy.

I raced it on 4s 5 Laps with borrowed ABC1816 prop and it woke it up and was in 135 range in temps for both. During the summer when in 90’s.

I also suggest the OSE UL-19 eletricronics tray. It will help lighten it up. Also may think about picking a speedmaster hydro round bottom strut.

The stock turn fin is too small. If you plan on doing saw passes it won’t matter. You plan on running ovals, then look into a new turn fin. Mojo makes a nice stainless steel one much bigger too.

[MADRCER]

Thanks Eric! The Carbon tray looks real nice and I will be picking one up if I keep this boat very long. I got a quick run in a few minutes ago right at dark in freezing temps (lol). With that being said it does look like I got a stable platform to work with. I'm going to wait for better days and the upgraded cable before I put my good props on it though.

[MADRCER]

I always seem to get a scuff here and there and of course after my first run I found a couple. So I got to looking for a paint solution and I found one that is a near exact match. Back in the day I used to build some scale trucks in my spare time and I came across a can of Pactra True Blue Pearl in my paint cabinet and it flat out matches perfect. See pictures below.


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[Darin Jordan]

Those of you using that Carbon Tray. It's nice, but if you'd like to retain the extra rigidity of the factory tray, here is a little mod that helps tie it into the front mounts.

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[Darin Jordan]

Carbon filler piece is drilled, then I tapped into the top plate with 4-40 threads, and opened up the holes slightly on the filler plate side.

Then I epoxied and screwed together the pieces using 4-40 aluminum socket-head cap screws. Now solid, with little flex. A little Velcro over it all and the ESC mounts right in front of the motor.

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[MADRCER]

Here is my 100% stock boat run on 6s. Not my best battery packs by no means. My best ones along with my best hardware will go on the boat after I get the upgraded flex installed. All I got was 63.5mph on this run before the rain came. Thanks to Chris for the s&b on the stock prop as always!

UL-19 speed test first run.jpg

[MADRCER]

Below is my 4s run.

UL-19 speed test first run 4s.jpg

[vinnyp]

Looks like you are getting that new boat sorted out. I am surprised at how badly that boat submerges under light acceleration.

[MADRCER]

Thanks VInny! It does decent and I don't think I'm to far off on my speed guess of low to mid 70's after it's equipped with my "good stuff". Yes, as you noticed this boat is nose heavy and can go scuba diving if you take off very slow with it Lol! I've searched around online for a benchmark and the best speed I've found with this boat is like 68mph running an ABC prop. With that being said I guess a bone stock run of 63.5mph isn't too bad. So just maybe I can get the Blue boat in the 70+ mph club as well....

[CraigP]

Looking good Madrcer! Is that a neutral setup as I was describing or something else?

[vinnyp]

Mark,
You have to add the new ride to your list.....

[MADRCER]

Mark,
You have to add the new ride to your list.....

We need a reference somewhere!

Looking good Madrcer! Is that a neutral setup as I was describing or something else?

Thanks Craig! Yes sir, I did adjust to be as neutral as possible, but I did go ahead and add a touch of positive to the strut because I knew what my water and wind was going to be like at the time of the run.

[CraigP]

That’s great! It works real good on my hydro too... I think some of the compensations on the rudder and turn fin are masking other issues, and just add drag. Good luck on your speed quest, please keep us posted.

[MADRCER]

I figured that I would share my 68mph run with you all from a few days ago... so here it is if anyone's interested (it didn't end without a rescue though). The boat was still set up fairly wet and conservative (still feeling it out) and I made three pretty decent passes, then I was waiting on the water to calm down for a couple of more passes and as I was taking off the flex came loose from the collet (should have changed it out from the start with) and it was dead in the water. So the risk taker that I am and I was being lazy and didn't want to get the Tug out of the car for the rescue, so I tried to rescue it the Veles and it didn't go very well as you will see from the video. The boat got 67 and 68mph on the GPS and the data logger. I was able to later retrieve my flex and prop since I was able to see when it fell out during the retrieval process. The flex looks like it could be reused but I'm not risking it anymore. Now I'm now ready for calmer weather with my upgraded shaft to give it a go again. Thanks again to Chris for the Awesome prop work!

UL-19 68 mph.jpg UL-19 67.1 mph pic in boat.jpg

[MADRCER]

Got the blue boat out today and of course the rain came and shortened my play time...The boat is handling pretty decent and I'm able to get WOT runs on 6s with no lift hardly at all. I don't want to jinx my next run, but unofficially on this run I did get a new best speed out of it. Thanks to Travis for the flex and Chris for the prop!

[vinnyp]

Nice and smooth run. Too bad the weather bit you. The weather sucks here as well.

[Cougar33]

Well, maybe this will help... on the initial setup, strut depth set so mid-line of prop shaft on the strut is the same as the depth of the back of the sponsons. Use a flat surface like your kitchen countertop, granite is best. The bottom of the boat should be parallel to the granite top for the first 4-5” from the transom. No angle on strut to start. Bottom of turn fin should be parallel with bottom surface mentioned. Bottom of rudder should also be co-planer, so all three surfaces are parallel. For this setup, need to measure the distance from the mid-line of the strut to the bottom of the strut, probably about 0.15”, but measure it. Move the strut up by this distance, so when the boat sits on the granite, it will be resting on the back of the sponsons and the strut. This position is how it will ride. When rudder and strut are set, move the strut back down that measures distance. Tighten it all up. Set the batteries so that the COG falls at about the mid point of the turn fin. I have a work bench with two, 4” X1” boards attached, running parallel and width set so it sits inside the tunnel. Need at least 1/8” of space between boards and the sides of the tunnel. Get a 1/4”, straight copper tube, place it on the boards and straddle the boat across the air traps. Move the boat back and forth and find the balance point. Tube needs to stay perpendiculr to the boat. Check where the tube is relative to the turn fin, move batteries to the position so it balances midway on the turn fin. Mark the location for easy placement. All gear should be on the boat, including the cowl. Now go out and let her rip! Strongly advice a prop on the smaller side for first run, or your boat could end up looking like this!

thanks for all the tips here Craig . I am new to hydros and new to this section and i can use all the help i can get . more information the better.. never even thought of the counter top test.. but it makes sense.. i am not sure how the rudder works with the test. my prop will sit not that deep.. i am getting a 90 mm rudder.. Dont know about the pop being that deep.
thanks for the information
LLoyd

[vinnyp]

Thanks Vinny! Yes, I've been testing some of my smaller boats in some smaller wind resistant waters because of all the bad weather here lately and I finally thought that I could have a decent outing yesterday before the scheduled rain came and what do you know... the meteorologist blew the forecast again...

Here we are getting hit with one major storm after another. Another is coming in tomorrow, bringing it to 3 in 10 days!!