The most important part of your FPV drone. Testing SO MANY 5" Props!
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- Опубліковано 3 сер 2024
- It's time for some serious 5" Prop testing. I bought 24 sets of props and tested them all with my thrust stand. The results surprised me!
Download spreadsheet: drive.google.com/file/d/1DFiJ...
Thrust stand: www.tytorobotics.com/pages/se...
If you'd like to support more testing like this and help pay for the thing I broke! / chris_rosser
Join the Discord! / discord - Наука та технологія
Wife: "What are you watching?"
Me: "This guy I watch is playing around with his thrust stand."
Wife: "[silently backs out of the room]"
But....but...thrust stand testing is fun for the whole family!
@@ChrisRosser 🤣
Just a quick note on how I picked the props for testing. I bought one of every 5" prop UnmannedTech and YourFPV had in stock in the UK. If they didn't have the prop in stock it didn't get tested. I'll see if I can find a supplier of GF props in the UK for a follow up video.
EDIT: Follow up confirmed with MOAR PROPS incl. Gemfan!
This video need a second episode :). You can maybe buy props from other countries.
We really need some gemfan. And also cyclone 5143.5 and 5146.5. to compare exact same prop with different pitch.
As usual this video is a top one! It start like other props test but when advance ratio slide appears it is the Chris touch! You rocks 👏
That would be awesome! I mostly use GF. Mainly 5.1X433, 51.x466, 51x477, and 52x36.
51433 here as well, Please do a followup with Gemfan props, looking forward to it!
I had a couple packs of Nazguls I hadn’t tried yet, so I put some on my new Sonicare with FPVCycle 25mm motors a couple hours ago and flew it. Man, those things are excellent! Now I’ll have to try them on my AOS 5 V2! They are also surprisingly quiet.
If you do a test on the lumenier gatebreakers pls let us know. I've struggled a little bit with the gatebreakers and am wondering if they are high on the vibration scale.
I knew I wasn't crazy...been rocking the HQ 5x4.3 for ages, tried many others, but always came back to the HQ 5x4.3. Thanks! Awesome job you did here!
Great video, Chris! I absolutely love these tests.. even if they don't necessarily correlate with my experiences, they really do clue me in to other factors that I'd maybe not considered..
Really wish I had seen gemfan represented, but I am a fan of HQ and Ethix props as well. I appreciate your contributions! 🙌
Bravo! Excellent work. I’m a mechanical engineer and value all of your effort behind this video. I know that you are presenting this in the most simplest of ways to help your audience to understand your data. New subscriber. Keep up the good work!
Sick I love how in depth you went and RIP on that test bench but thanks for providing this information free this was so sick looks like I will be looking at getting a hq set of props
Wow, that was a lot of work. Very very helpful informations. Thank you so much Chris. 👏👍
Would love to see stats on the Ethix P3 prop. Probably one of the most flown props.
I was looking for that, too.
as usually fantastic overview! extremely underrated channel.
Great review👍. I love your scientific approach to all things FPV😀
It was interesting to see how the props i fly got rated. Thanks for the deep dive.
Awesome test Chris. I was already typing a comment about static performance testing vs prop performance with inflow and how it changes the AOA, efficiency, thrust and top speed, but I see you got that covered! Keep up the amazing work, this is a godsend for data geeks like me!
I, as someone who develops rotor blades for RC helicopters, would absolutely love to see you developing an AOS propeller, and what approach you would take to create a virtual model of it to gauge its performance before cutting expensive molds. It has taken me some time and iterating to find my personal workflow for heli blades but the results are amazing, so I'd say if you're up for a challenge, this would be an amazing project for you 😉
Thanks Rosser for the test, I appreciate it. Keep spirit and stay healthy.. 👍😊🔥🔥🔥
Another great video thanks Chtis👊🏻👊🏻
Man this video won my subscription!!! Great work, i wish you had collected audible noise levels too!!
another very good video! thx for testing!
Chris, your work is amazing! I think you need to keep adding to this database by including several other props. I am personally willing to purchase/donate to the cause.
I'm flying the HQ 5x4.3x3 V1S since they came out years ago (thanks to our Aussie friend Chad Nowak (FinalGlideAus) and never felt the need for a different prop. Now I know why! Thanks Chris!
Great work !!!!!!!!!
Finally a real „no feel“ test 🤟🏻
Very interesting and informative video. No Gemfan, in particular Hurricanes? Shame.
excellent work!
great video real informative, hopefully the GF test will be coming up soon. stay safe
Appreciate you Chris 🙏
Amazing vid - I love the work you are doing. Rationalizing this so far more of a garage DIY-build hobby so that we finally see a clear direction and can rapidly advance from there! In the past years there has been so much stuff comming out, that we currently live in a world of chaos, random specs and myths around those specs without rational data to back it up. You make it so much more easy to pick the stuff we actually need :)
I'm glad I'm not the only one missing Gemfans in here - they are really pushing that hobby forward with their own science and social media work, so their presence is quite high (plus they are the ones getting that LED-fan thing solved XD). One more request: In all of this power&response hungy world I think one feature of a prop is highly overseen: It's noise, especially the perceived noise. I would gladly give up some efficiency(but not responsiveness and thrust! XD) for a whisper-fan on my freestyle quad. Especially the HQ props have some kind of screaching sound to it that is really intimidating, frightening and provoking a lot of negative reactions. And those Cine 25/35-Pushers are even worse, which makes me often fly my tiny-trainer around people instead of the whoop, simply because that whoop frightens people just so much more. So could you add noise level with a perception weighting like Sone / DB (A) into your testings and see if we got a whisper-fan somewhere in the world already? I really hope this pushes HQ and Gemfan into making a set of those, too!
Just a great video! you bring the community more information than all others! in a simple way (In my opinion (: )
Thanks for all that testing. I am in love with Ethix P3, I wish you could have tested them to see how they rank.
Fantastic! Now I want to see this same test run for sub250 builds with 3" size.
Excellent testing. Strangely enough, I love the feel of my j37 and S4 lemon and lime props and didn't care too much for the hq 5x4.3x3 v1s, which rank so well...
Great video WELL DONE. Thank you so much. Would love to know how well manufacturing consistency comes into play on these too.
Great video!
Very very interesting data for sure especially considering that I loved how the Azure 5140 fly. But there is one important metric you need to look at for props as well: durability. If you go out there with a prop that cant take anything then the overall experiene with that prop is not gonna be as great no matter how good it flies.
True. I was super happy that my go-to prop was included (HQ DP 5.1x3.6x3) and they are pretty durable. I've flown GF hurricanes and they look great but fall apart at the first turtle mode.
Interested to see GemFan included as they are widely regarded as the best engineered props.
Yeah, I'm stunned they're not included. Kinda muddy's the comparison in my opinion.
^^ i'm sure he's joking us... or he makes an Gemfan only Vid.
I’m very happy with my HQ P4 on a 740g quad. Tried the P3 it feels a bit under power and I can see the props bends so much under load compare to P4 (running 6S, 1950kv motors). The P4 in my opinion the perfect all around prop. You can freestyle well and chase fast FPV fixed-wings.
Great job! Please do the 7" props next.
I find this very interesting as I really like the Nazgul F5 props. Recently I began switching to the new vanny style props, which are the same diameter and pitch. However I noticed that the vanny props seem to have more lift, and when I switched back to the f5 props again, I noticed that coming out of a dive I had to hit the throttle more. The new vanny props which seem to have a thicker profile, I thought this is why they seem to provide more lift.
Great stuff Chris. I'm a GF 51433 and 51466 man.
Great video, glad you followed my suggestion for that video 😉
But I think a part 2 with Gemfan props is needed to be a real help. Gemfan has just too many props that are really relevant to me. Please don’t forget the 51433, f3s, f4s, 5226, 5236 and MCK V2.
Also a test of the HQ V2S would be interesting as it’s the successor to the V1S.
Having the AOS55 in mind maybe the HQ5.5”V1S and GF5536 would be cool.
Thx so much for your work, I am happy to be a patreon of your channel. 👍
Thanks for the idea! GF weren't in stock at the stores I bought from initially. I've now found them in stock and have ordered a bunch 👍
Good stuff! I'd love to see a test comparing 3 blade to 2 blade, also I never realized how inefficient my cyclones were. But they're so resilient though!
Durability is certainly important as well!
You should throw in a couple 2 blade props. Everyone keeps saying 2 blade is more efficient than 3, but I get a lot more battery life (and speed and handling) on the 3 blade sl5130 and sl5125 than the dual blade lr5126.
cuz u're expecting 2 blades to be as fast as 3
so you push the throttle in consequence
I tend to use the props that still have at least some blades left after a few minutes of my "great" flying. Filter heavy AF pid profile with low D term. Flies like nothing you'd ever want and comes with scorching motors. But it will "happily" chug along with just one or two blades left on the prop. At least, it did so when it was winter here...
Great video, thanks for the work! I have a lot of props, many dalprops. Always wondered how good they are actually. Often vibration is an important measure for me, to rule out jello... greets, Mario
Awesome thank you for sharing.
Thanks for watching!
WOW! Glad to know my nazgul props are that good! I have loads of em!! All I fly.
I was surprised how well they perfromed as well. Good Job iFlight!
Haven't tried the Nazgul F5 but the older Nazgul 5140 remain my favourite all-rounder.
Interesting how pitch doesn't necessarily correlate with efficiency or max thrust. Although for a lot of pilots, I think a key factor on what makes a good freestyle prop is the durability. Yet I understand that can be complicated to test.
Great to see the nazgul f5 ranking high. I fly them all the time and love them but I don't hear anybody talking about them.
Awesome that you included the 3D props! I would love to see a comparison between the hq 3D and gemfan 513D. I would also like to see the reverse thrust numbers.
I'd like to see further props tested and added to a spreadsheet. I'm sure Gemfan would send you a few sets. Also I'd be very interested in 7inch prop tests and if possible not only triblades but also biblades. Could be useful data for your cinelifter as well
That's a lot of props 👍
This would be awesome, except no Gemfan? That would be like comparing Digital FPV systems and excluding DJI. I love the work you do, and have great respect for your attention to detail to get accurate, repeatable, and verifiable results. that's why the exclusion of one of the two top prop manufacturers is kinda weird.
He explained it in the top comment
Fantastic content! Thank you! How do biplade and quadblade props ? I am missing the popular Gemfan options here.
Will you do something similar with 3.5 inch and 7 and 7.5 inch props?
I hope you make same analysis but with 3" props. Anyway even this video is awesome as I am about to build my first 5" drone.
Great Work. I just missed bei Peanut Butter Jellys
please do a follow up series with alot more gemfan products. like the 5147,5149, 5040 etc. there are alot of very popular props recommended by many pilots that i would love to see hard data on. well done!
New video is up with more data on Gemfans!
Thanks!
I need the best for the day DJI FPV, right now I am running the Akion adapters with a 5.2x2.6x3 and it seems really nice and smooth but obviously other things change. Awesome video love the information, is there any way you can make a chart that would coincide with the weight of the quadcopter
Hello Chris! Thank you for your work! Did you test the Props for consistency? I would think at least the balance of a prop and therefore the vibration might be different in different batches.
Hi chris, want to ask, did Aos7 falcon and another aos7 have the same pattern for gopro mount in the front? I have difficult to find more 3dprint for my aos7 chris version
Hi Chris, Thanks for your afford to test alle 5" the props. It would be great to to this with 7" inch as well. Thanks in advance Sebastian
You really need a wind tunnel. Static thrust won't tell you enough to say if its a "good" freestyle/racing prop. Theres more to the story.
Thanks for the dedicated work, enjoyed watching! Would wish for error bars (but understand the day has only so many hours)
interesting analysis...I have the HQ 5x4.3x3 V1S for a bit and they definitely perform (Chameleon Ti, Velox 2306, 2400Kv))
Just skimming through......... no Gemfan?
The Nazgûl F5 is a copy of the Gemfan 51433 but made cheaper so Gemfans would have dominated this testing I’ll bet
@@CiottiFPV really? I'm about to buy some nazgul but I have a ton of 433 already XD.
@@J2_P don’t support cloners man, fuck Nazgûl for ripping Gemfan off
Nice video and data collection Chris.
One comment - I was able to see more of the expected correlation between pitch and efficiency / thrust / torque / etc by comparing measurements at a fixed RPM, rather than a fixed thrust. It’s a weaker trend in your dataset but it is observable.
Also something to consider - I believe there is a bug in the old rcbenchmark scripts that reports the torque as 1/2 the true value. Many of the older results (2019 or earlier) in the tyro robotics database still have this discrepancy. Your data appears to be using the older scripts that has this bug too. I would be very interested to see a torque measurement sanity check on your test rig with a known moment. If your measurements come out to 1/2 the expected value, then this would corroborate my findings.
Cheers!
Great video. Can you please also test 4 blade props in comparison?
I been using the axis Blackbird props for 6 months now exclusively... I have enjoyed them. I don't have time to watch it all right now or look over the sheet.. So I don't know if I'm using bad props yet 😂
again a great video. thx for that! Why did you use the V1 from the HQProps and not V2? And could you also make a video exactly like this about the 2-blade propellers?
The V1S were in stock at the shops that I bought all the props from, the V2S weren't. I'll definitely do some 2 blade testing.
great testing, may I ask why you haven't tested their ability to spin up (and/or down)? For example: you could have them running at 5% throttle and then increase the throttle to 100% in an instant and see which prop increases thrust quickest. That way you should have a metric for how well a quad responds if it has that specific prop installed.
Edit: It's also interesting to see the 5043 v1s so far at the top, I think it was the prop that properly replaced the old 5040 glass fiber prop from HQ and the point where Steele finally switched to poly carbonate props if I remember correctly. I've always thought it is a great prop and just stuck with it. Also I'd be interested in seeing a test of these old 5040 glass fiber props and how they compare to all these new props.
Spin up spin down is a lot of work. Too much to undertake for 24 sets of props. The weight should be a useful comparsion factor for spin up and spin down.
seems the Ethix bi blades made were not mentioned in the Vibration test but were in others any reason for that?
I thought of a practical test in moved air. What about using the same prop and motor right in front of the discards of the thrust stand to get the air moving into the Prop. I would think it is very similar to be flying. I thought it would act like a primitive wind tunnel. I understand the the distance of the prop blowing to the Prop tested will make a difference, also the obstruction by the thrust stand itself. Not sure how to get that right. Would we get the same conclusions like using the formula for advance ratio? Probably to many variables. What do you think?
ethix s5, hq 5x4.3x3 and nazgul. i like the hq's best. the s5's and nazguls feel about the same. theyre also nice.
Love me some HQ j37 and j40s just found interesting results here form them however
yep literally just ordered a set (luckily only one) of them and now im like...
I am hoping you will do 3.5" props. A little surprising how little correlation there is between rated pitch and performance.
That'll be a pretty short list. There's only a handful of 3.5 in props on the market that I'm aware of.
Hey @Chris Rosser !
Can you make a video comparing the resonance caracteristics of the brand new GEPRC Mark 5 Frame and the old king Apex frame?
I love both and i've purchase the GEPRC Mark 5 frame and have some issue to tunning it and i didn't have your knoledge of frame resonance!
Sorry for my bad English i'm French!
Thank you for your content, it help me and the FPV community so much !
If you can't, what's your thaught on the GEPRC Mark 5 frame?
I don't think it'll have quite as good resonance as the Apex due to it's thinner arms. The metal front end looks very durable but also quite heavy. Maybe a good bando slaying frame?
Good day, interesting video-work,see ya!. Chris! 👽
All these props and not a single Gemfan tested!? Great informative video though, just sad my props weren't in it :)
I didn’t know nazgul f5 were different from previous nazgul props. Anyway you are missing a lot of modern propellers: all gemfan f3 f4 vanny, etc, hq j37 j40. Please do a second video with these props, your content is always good!
Sent him the props.
Hey Chris, in the website says that the Nazgul F5 Prop is 5.1 inch, that change some calculations right?
agh, funny the dal prop with least efficiency also had the least vibration, i know our props deflect but could it be a much bigger factor in performance than we think. also, gutted you didnt test the iflight 5.1x40, i'm trying to find the most similar prop to these because they seem to be out of stock everywhere, especially the red ones.
Chris, this is all so helpful .what would the results be for the best 5" ducted fan prop (lift not speed maybe)? As below willing to donate.
Hvala.
I would love it if you tested some 7 inch propellers
Is there a problem with Gemfan props?
Hello there, I love your videos. I have a few questions in relation to this video. 1, how do props with the same diameter but with 2 blades preform?. 2, how do props with the same diameter but with 4,5,6,8 blades preform?. and last question. how do different blades for ducted quads preform?. The reason why I'm asking is because I recently picked up some HQ props that have 4,6 and 8 blades, PS Thank You for your the great videos, I always look forward to them.
Chris - please can you test biblade props and compare them to these props? It would be good to finally have the biblade vs. triblade argument put to bed.
is the motor limiting the thrust or the prop?
maybe the higher pitch just needs more motor for benefits to occur?
or is prop flattening and that's all it's got?
You'll always get more thrust with a bigger motor (at worse and worse efficiency) but I don't think we should be using a motor much bigger than 2207 on a 5" prop.
@@ChrisRosser be interesting to see massive power say 2807 curve, next to proper 2207 then under 2204.
How those efficiencies/ thrust relate.
Nazgul evoque props are 5.1x3.5 (not 5.0x3.5) - are they going to perform very different from what you measured for the 5.0 Nazgul props?
I wonder how the renolds number effects the performance might be the reason pitch is not effecting it the way everyone would asume
wonder how much variance in vibration each prop has. if you tested 10 of those props, how consistent they would be.
I'll be sure to look at that in the follow up, thanks!
Valeu!
Did Gemfan not hold up to these or were they not tested? I love the F4S props and the 5236, 5536 props so much.
I agree on the f4s and the 5236. I had really bad vibes in both blackbox and gopro jello on the 5536. Loved the feel of the 5536 but spent almost a month trying to get rid of the vibes, never did.
@@kenb6565 what motors? I'm spinning the 5236 and 5536 on the fpvcycle 25mm without issue
@@Bannisterpost i have both 2208.5 hyperlights and the 25mm imperials, 2 builds each. Same frame and electrinics on all 4. Apex HD with 5.5" and 6" arms. Love the gemfan 6030 for longer range and 5235 for close in. 🤔
@@kenb6565 interesting, the only difference on my Apex 5.5" when using the 5536 is it flies up in the air like it weighs nothing. The props do take a little more time to spin up and down but overall good. Maybe it's our arm length or pids. Anyways I still prefer the 5236 it's such a good prop
@@Bannisterpost they flew great, rpm filtering handled it no problem. I even printed all new gopro mount variations (sesson5), jello in the hd recording. Raw gyro data also showed high vibes. I swapped arms between 5.5 and 6. Wish i could expain it. Its possible I go two seprate bad batches. I worked really hard to figure it out. Never did.
Could you do test for best long range props is 5 inch 6 inch 7 inch better cheers Chris interesting video
7" cine focus next 😉
How many props of each type did you test to get vibration numbers? A single prop may have more inherent vibration than others of the same type, so I'm curious if you tested all 4 props in a pack or just one.
Just one for this testing but I'll do a follow up video to look at prop to prop variation.
I wonder why there is any gemfan props in this testing. I use theirs a lot
UnmannedTech and YourFPV didn't have any GFs in stock. I bought one of everything they had though.
how many bi blade props here?
I bought so many N1's a long time ago, good job me! Ethix S5 best for racing? Who would of thought...
Are higher pitched props more silent?
not a single GF prop! WOW!
UnmannedTech and YourFPV didn't have any in stock. I bought one of everything they had though.
Numbers charts blah blah blah, but what felt the most juicy on the test stand? There wasn't a juice column in the spreadsheet. Thanks for this, super helpful