Posts: 146 Threads: 20 Likes Received: 21 in 14 posts Likes Given: 86 Joined: May 2016 Reputation: 0 Hi Everyone, I have one of those ZMR clone kits I got online. It fly's great and I'm loving it. I recently got these XSOUL Tri-Blades 5045 Bullnose Propellers. https://www.amazon.com/gp/product/B01DNB...UTF8&psc=1 I would really like to use them with my current setup. I am worried that my 12Amp ESC's will not handle it and something will burn up. Sorry if this is a newbie question but I don't really want to burn up my quad. Can I use the 5045 tri propellers with my Emax BLHeli 12A ESC and MT2204 2300KV Brushless motors? Also I am currently using 3s Lipos. Will these work or do I need 4s? Also I have included what batteries I have. Are the C ratings I have too low? Sorry if this has been answered before but I did not find the information I was looking for. I put them on my quad this weekend and hovered it around for around a min. I was surprised that the props sound like they make the quad quieter. I did notice that the esc's and motors seemed unusually hot after a bit of hovering. Not too hot to touch, just hotter then I would expect. If I took this to the park and flew hard do you think I will damage or burn something up? I am down to upgrade the ESC's if that's what I need to do. Any help would be greatly appreciated. Thanks for any advice or suggestions Current setup: ZMR 250 Clone 250 mm V2 carbon frame kit MT2204 2300KV Brushless motor Emax BLHeli 12A ESC 5030 2-blade Propeller CC3D Batteries: x2 Gens ace LiPo Battery Pack 2200mAh 25C 3S 11.1V Gens ace 1300mAh 11.1V 25C 3S Lipo Venom 20C 3S 2100mAh 11.1V LiPo Battery Tattu 1300mAh 11.1V 45C 3S1P LiPO Battery Pack, Turnigy 1300mAh 3S 20C Lipo Pack Want to try: XSOUL Tri-Blades 5045 Bullnose Propellers https://www.amazon.com/gp/product/B01DNB...UTF8&psc=1 • Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 I would guess it would be ok, but on the edge with 3s. 4s would be too much for those escs. I don’t know how efficient those props are, but my v2 dal tri blade 5045bn uses about 60A on sunnysky 2204 and 4s on full throttle in the air • Posts: 1,070 Threads: 70 Likes Received: 742 in 378 posts Likes Given: 577 Joined: Jan 2016 Reputation: 44 (25-Jul-2016, 09:01 PM)oyvinla Wrote: I would guess it would be ok, but on the edge with 3s. 4s would be too much for those escs. I don’t know how efficient those props are, but my v2 dal tri blade 5045bn uses about 60A on sunnysky 2204 and 4s on full throttle in the air Then it actually would be on the edge on 4s - those ESC's should have 15A burst rating if they are anywhere near the specs of older 12A "Simon" sort. Posts: 1,290 Threads: 67 Likes Received: 713 in 473 posts Likes Given: 1,216 Joined: Mar 2016 Reputation: 23 I would think it would depend on how aggressively you fly. If you take it easy, I would think you would be good on 3s, however if you dog it all the time, you may push the limits. I agree with oyvinla. I think 4s would be a no no. Personally I would go with 20A's...... "Damn the torpedoes!!! Full speed ahead!!!" Posts: 1,070 Threads: 70 Likes Received: 742 in 378 posts Likes Given: 577 Joined: Jan 2016 Reputation: 44 Another topic is your packs - I personally think that those lipos you mention are too weak to deliver enough current for aggressive flying on such a heavy prop at least not long enough for it to be a real danger for those ESCs. I wouldn't fly those props anyway just because they are too heavy - I don't like to use hybrid 3-blade props even on my old 2300kv cobras on 4s, wouldn't try full bullnose x3 on them just because I think that the craft wouldn't fly good - I'm better off with 5040x3 here. Those are just personal opinions. The risk is yours. Posts: 33 Threads: 8 Likes Received: 11 in 5 posts Likes Given: 25 Joined: Jul 2016 Reputation: 1 Hello, My first build was exactly the same . 3s will push a larger prop than 4s. 4s will create more thrust with a smaller prop. XSOUL Tri-Blades 5045 Bullnose Propellers will be on the edge of your motors capacity . It was a good idea to test hove the quad before a aggressive fly. A few OTHER things that will make mators warm / hot are too high D value in the PID, try dropping each D by 5 on Pitch and roll, one at a time and see if makes a temperature difference. The other is too high motor timming , this is a pain to adjust with your build. Even though your motors are cooler with the 2 bladed props, 3 bladed bullnose will require you to re-tune your PID values. Your 3s battery C ratings are low ( except the TATTU, good choice ) , so a agressive prop will kill off your batteries. The idea that "4s will push the props were 3s struggles" is wrong. 4s runs smaller props faster and cant handle the larger props . 3s can handle larger props and dosent spin them as fast. I guess your looking for more speed/ power from your quad. Pilots with medium skill and higher, will run 4s or higher. I would recommend not buying 5"triblade bullnose,. Buy 4s 45c+ (1300mah - 1500mah) batteries, they will give you about 30% more power using your 5030 2blade props . Your hover will go from 1/2 stick to 1/3 stick , thats a 3/4 stick of power. On your current batteries you can run a 5040 prop that will give you a 10% thrust gain. I think you could also run a TRI blade "NON BullNose". http://www.banggood.com/10-Pairs-KINGKON...00415.html http://www.banggood.com/10-Pairs-Kingkon...67875.html Posts: 918 Threads: 83 Likes Received: 533 in 271 posts Likes Given: 498 Joined: Jan 2016 Reputation: 30 26-Jul-2016, 04:18 AM (This post was last modified: 26-Jul-2016, 04:21 AM by BigglesFPV.) These topics are and will always be hot topics. While I am no engineer and have no bench tests to validate my claims here I am sharing my own personal experiences. Unless the Motors and esc's say otherwise, you can run 3S, 4S, 5S and 6S if you want (providing everything else can handle the voltage. But Prop size vs Motor kV is where it counts. High kV motors = small props Medium kV Motors can handle 4 and 5 inch props Low kV motors can swing bigger props. Examples of the above High kV , say 3000kV to 4000kV run 3 inch props Medium kV say 2300Kv to 2633kV run a 5 inch prop (running a 2633kV motor with 5 inch prop does suck the lipo ), but still ok. Low kV like a 1960 kV can swing a 6 inch prop So you get the idea. Now also factor in how many blades and the pitch as this also affects the amount of amps you draw, which in turn will determine your esc rating, be it 20 amp esc's or 30amps etc. And yes the Voltage of the Lipo does also affect the speed in which the motors will run, but too a point, and after that point the extra voltage just turns into heat and gives you nothing more than wasted energy and bloody hot motors. Experience out in the field experimenting will teach you far more than bench tests, Bench tests are a guide only, do not rely on them for your end result. Anyways, that is my say on the matter, whether I am 100% right or not I don't know, but it works for me. Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 (25-Jul-2016, 09:26 PM)Konrad Stepanajtys Wrote: Then it actually would be on the edge on 4s - those ESC's should have 15A burst rating if they are anywhere near the specs of older 12A "Simon" sort. Yeah, with the dal tri 5045bn v2 props, you are right, but if I put on 2 blade 5045 kingkong bn on the same setup, it uses 75amps+ easily. That's why I think those props linked to would be a bit too much with 4s. I would probably go for New 20a escs and a good quality 4s lipo if I was to upgrade this quad Posts: 146 Threads: 20 Likes Received: 21 in 14 posts Likes Given: 86 Joined: May 2016 Reputation: 0 Wow Thanks for all the information everyone. This got more replies then I thought it would. So it sounds like I should not use these props with my current setup and look into getting some 20 or higher Amp ESC's. The props were kind of an impulse buy. I see all the videos of people using the three blade propellers and just bought some online without doing my homework. Ill have to put them in my drawer and wait till i have the right equipment. Bummer. I thought they looked cool. All the replies I got just give me more questions, and shows me that I have a lot to learn. The 2 blade props I'm using seem kinds flimsy compared to the tri props I bought, I thought that would make the quad handle a bit better... I'm totally new to this and I assume I will have to figure out what this PID tuning thing I keep hearing about is and how to do it. Again, Thanks so much to everyone for answering my questions and pointing someone who is just getting started in the right direction. IntoFpv rocks!! • Posts: 918 Threads: 83 Likes Received: 533 in 271 posts Likes Given: 498 Joined: Jan 2016 Reputation: 30 (26-Jul-2016, 08:24 PM)NimhBot Wrote: ...........I see all the videos of people using the three blade propellers and just bought some online without doing my homework. Ill have to put them in my drawer and wait till i have the right equipment.......... You hit the nail on the head there..Keyword is "Homework", A lot of (not all) new pilots purchase items based on what they see others use, often forgetting that the person using them may have many many hours of flight time under there belt. The truth is we all start out the same, basically with bugger all knowledge of what we need but just know we have to fly like the guys in the videos, so we base our purchasing on what they are using. The humble little prop is quite often the lowest on the order of build components as we all feel that a prop is a prop is a prop, and any prop will do right? Nope. The more you get into this hobby the more you learn to understand that the prop is one of the critical parts to the whole quad, after all the prop is the only thing on the whole quad that produces the lift you need, Too bendy a prop and the quads feels "mushy" and too stiff a prop the quad feels great but will snap the prop in the blink of an eye as 40,000 rpm of plastic, carbon fibre or nylon composite hits a blade of grass. For newbies, get tons of cheapish props to learn on, as you will break hundreds, and that is not a lie, you really will break hundreds. If I had bought shares in HQ, DAL, Gemfan when I was learning I think I would be a billionaire by now..LOL As you progress and your skills improve you will want to try different setup ups, and it really is only after you have a "feel" for how your quad fly's and to your style of flying will you then have a least some idea of what props to try, Different pitch, bullnose or racetips, nylon, composite etc. But (my advice only) never ever use carbon fibre props on a race/freestyle quad, you will regret it, as will your wallet. In my view, carbon props are best suited to larger flying aerial video quads and HEx's etc. Anyways, enough blabbing..have fun. Posts: 1,070 Threads: 70 Likes Received: 742 in 378 posts Likes Given: 577 Joined: Jan 2016 Reputation: 44 (27-Jul-2016, 12:18 AM)BigglesFPV Wrote: For newbies, get tons of cheapish props to learn on, as you will break hundreds, and that is not a lie, you really will break hundreds. If I had bought shares in HQ, DAL, Gemfan when I was learning I think I would be a billionaire by now..LOL I always recommend using 5040 kingkong props, not only for starters. It's a great prop to bash around, put out decent thrust, pretty durable, yet bendy when crash happens - and it continues to fly relatively well when I bend them back - that's something I can't say about DAL "indestructibles"... And most importantly... they are supercheap Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 (27-Jul-2016, 05:56 AM)Konrad Stepanajtys Wrote: I always recommend using 5040 kingkong props, not only for starters. It's a great prop to bash around, put out decent thrust, pretty durable, yet bendy when crash happens - and it continues to fly relatively well when I bend them back - that's something I can't say about DAL "indestructibles"... And most importantly... they are supercheap Good tip from Konrad here! I like those props a lot! Posts: 146 Threads: 20 Likes Received: 21 in 14 posts Likes Given: 86 Joined: May 2016 Reputation: 0 (27-Jul-2016, 05:56 AM)Konrad Stepanajtys Wrote: I always recommend using 5040 kingkong props, not only for starters. It's a great prop to bash around, put out decent thrust, pretty durable, yet bendy when crash happens - and it continues to fly relatively well when I bend them back - that's something I can't say about DAL "indestructibles"... And most importantly... they are supercheap Thank you Konrad for the prop suggestion. I think I will give thoes props a try and see what they are like. Posts: 947 Threads: 66 Likes Received: 350 in 248 posts Likes Given: 164 Joined: Apr 2016 Reputation: 34 You'll find them on banggood if you didn't know already Posts: 146 Threads: 20 Likes Received: 21 in 14 posts Likes Given: 86 Joined: May 2016 Reputation: 0 (26-Jul-2016, 03:53 AM)FPVXX Wrote: Hello, My first build was exactly the same . 3s will push a larger prop than 4s. 4s will create more thrust with a smaller prop. XSOUL Tri-Blades 5045 Bullnose Propellers will be on the edge of your motors capacity . It was a good idea to test hove the quad before a aggressive fly. A few OTHER things that will make mators warm / hot are too high D value in the PID, try dropping each D by 5 on Pitch and roll, one at a time and see if makes a temperature difference. The other is too high motor timming , this is a pain to adjust with your build. Even though your motors are cooler with the 2 bladed props, 3 bladed bullnose will require you to re-tune your PID values. Your 3s battery C ratings are low ( except the TATTU, good choice ) , so a agressive prop will kill off your batteries. The idea that "4s will push the props were 3s struggles" is wrong. 4s runs smaller props faster and cant handle the larger props . 3s can handle larger props and dosent spin them as fast. I guess your looking for more speed/ power from your quad. Pilots with medium skill and higher, will run 4s or higher. I would recommend not buying 5"triblade bullnose,. Buy 4s 45c+ (1300mah - 1500mah) batteries, they will give you about 30% more power using your 5030 2blade props . Your hover will go from 1/2 stick to 1/3 stick , thats a 3/4 stick of power. On your current batteries you can run a 5040 prop that will give you a 10% thrust gain. I think you could also run a TRI blade "NON BullNose". http://www.banggood.com/10-Pairs-KINGKON...00415.html http://www.banggood.com/10-Pairs-Kingkon...67875.html Thank you FPVXX. Excellent information. Very helpful. I got some ordered and cant wait to try em. • |