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Thread OP
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Discussion
Pursuit mono setup
I have just purchased a pursuit mono with a 2150kv leopard motor.
What setup you all recommend running. Lipo count, Mah, c rating etc? Prop size 3/16 shaft. Esc Also anything I should do to the hull to improve it. Cheers Ryan |
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I've built a couple of these up & the following works well with that motor.
4s lipo, 5000 or 6000mah at 40 or 50C rating. 2 packs in parallel if you want longer runs. Seaking 180A ESC. Octura 440/3 blade prop or CNC 442/3 blade prop. Some extra fiberglass on the motor mounts/hull join. The same with the battery tray/ hull join. Or epoxy some 1/4" carbon fiber rod along the joins. See the pics. They're not Pursuits, but you get the idea. PS: there are a few links at the bottom of this page for some threads on some Pursuit builds. Scroll down. |
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Hi quigs84,
A floodchamber in the Pursuit is no problem, but it has to be large, 2,5L at least.(2,3L proved to be too small for my Arowana's, I still need lead to make it work). This means extending the floodchamber from under the deckopening. Assuming the floodchamber will run forward under the deck (not easy to reach, but doable), you can see how far you get by putting the boat on the left side and pour water in the hull. If that space will hold 2,5L, you can put the floodchamber wall perpendicular to the edge of the hatchopening, if not, you'll have to extend the top of the floodchamber from under the hatch. Mind you, a floodchamber running further forward as the front of the hatch isn't practical, as the size of the hull makes filling this front section hard, if not impossible. I already had to install an extra tube to get the air out of the floodchamber in my Arowana's when flipped, see pics. SO, filling the side with water os more of an idication if, and how far the deck has to be extended. Check out this for ideas: https://www.rcgroups.com/forums/show...oodchamber+how Here are two pics of the extended floodchamber in my Arowana, similar hull as the Pursuit: https://www.rcgroups.com/forums/show...&postcount=222 Let me know if you have more questions. Regards, Jan. |
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Hi quigs84,
The 2150Kv is a 'typical' 4S set-up with about 28500 rpm under load. I'm running props from a brass 42 mm two blade, 43,5 mm two blade, 45 mm two blade (all standard blade surface and 1,4 pitch), a 45 mm CNC aluminim three blade (very fast but hard on the battery) and the narrow blade 48 mm HK brass prop which gives me a nice compromise between speed and runtime: https://www.hobbyking.com/hobbyking/s...48_CL_08B.html All balanced and sharpened. If you run just for fun, you could also run 5S and get close to 36000 rpm under load. Please do prop down to 38mm and work your way up to, most likely, 40 or 42 mm. Batteries at least 30C, more is better (also bigger and heavier), but if you go the floodchamber route, there are limits to what will physically fit next to the floodchamber wall... Regards, Jan. |
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working flood chamber that holds 2.5L , a 40 mm motor , a 180amp esc and some lipo's that will give you a run time that's longer then 3 minutes....
hmmm , having one myself i can tell you that this will not be easy to get that all in that hull and you really will need some high quality cells or spin a very small prop when only using one 4s 5000mah lipo! would drop the flood chamber and put in 2x2s 8000 mah lipo's so you can spin the props that are recommended here and have some run-time |
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Last edited by restart; May 24, 2016 at 05:38 AM.
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Thread OP
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Thanks for all the input guys, much appreciated.
Yeah the boat will just be for fun Jan so could go 5s but would need high mAh lipos to get the runtime half decent. Thanks for input as well restart. If I ran it on 4s I would run 2 in parellel but then obviously weight will be the thing. 2 x 2s in series is also a good option as well. To be honest I am a bit torn what to run it on. 4s 5s or 6s. Weather it be 2 x 2s in series etc. As for the flood chamber it was just an idea but think I will leave that till I feel it needs one at all. The lake I use you can walk around the whole lot and as just for fun I can always just wait till it makes its way back to the side. |
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Quote:
I'd be careful with such large capacities, as the weight more than doubles compared to a 5800mAh, this will cost speed and runtime, compared to a lighter set-up. Not to mention the cost, if you go for high end batteries: http://www.maxamps.com/proddetail.ph...000-74-DC-Pack With speeds close to 50 mph, I find 6-7 minutes runtime full throttle(!) quite demanding, nearly doubling that would make my focus sag and (expensive) driver errors creep in. I'd rather go for a lighter batterypack (or 2S Lipo x 2) and have a second (or third set) ready for longer runtimes, just not on one charge. Regards, Jan. |
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Thread OP
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I see what your saying. Going for a single 4s lipo around 5800mAh would be lighter than 2 x 2s at say 5800mAh. Therefore the single 4s would give you more runtime and speed as it is lighter.
6 -7 mins at full.throttle.would be plenty of time, and as it is just for fun at the moment I would probably get longer runtime as would not be going full throttle constant. Also as you say can have another battery charged and ready to use after. Will get on the computer and have a look lipos and get a esc ordered up. |
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