6S is the new 4S | HYPE OR TRUTH

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  • Опубликовано: 22 окт 2024
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    ---
    Catalyst Machineworks is promoting the idea of 6S/low-kv. This means that you INCREASE your battery voltage to 6S, but you DECREASE your motor kv to keep the rpm at the prop the same. So what's the point? Higher voltage results in lower amps, less voltage sag, cooler-running components, and longer flight time. OR SO THEY SAY.
    Today I've invited one of the fastest pilots in the world, Evan Turner (HeadsUpFPV) to help test the idea. We've got two nearly-identical quads, one running on 4S and one running on 6S, and we're going to put them against each other and see what the differences are.
    Evan's RUclips: / @headsupfpv
    THANKS TO ALL THE SPONSORS WHO PROVIDED EQUIPMENT FOR THIS TEST
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    Catalyst Machineworks gear was not specifically used in this test, but without Catalyst, this video never would have happened, so here is a plug for their 6S HV gear:
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    -- EVAN'S GEAR --
    Frame: Hyperlite Floss v2.1
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    6S Motor: Hyperlite 2207/1722kv
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    6S Battery: Pulse 1250 mAh 6S
    Purchase at Pulse: bit.ly/2GuJXUV
    4S Motor: Hyperlite 2207/2522kv
    Purchase at Pyro-Drone: bit.ly/2uHeBJd
    4S Battery: Pulse 1550 mAh 4S HV
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    Flight Controller: Hyperlite F4
    Purchase at Pyro-Drone: bit.ly/2uCKC5q
    ESC: Aikon AK32 (one of the best 6S 4-in-1 ESCs available!)
    Purchase at Rotor Riot: bit.ly/2Jdg0ur
    Purchase at ReadyMadeRC: bit.ly/2pVtqTW
    Purchase at Pyro-Drone: bit.ly/2uCKdjj
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Комментарии • 501

  • @mrmurder75
    @mrmurder75 6 лет назад +51

    Oh to be young again and have reactions that fast.

  • @filiped7298
    @filiped7298 6 лет назад +81

    I blinked so I missed a lap.

  • @TheMadmacs
    @TheMadmacs 6 лет назад +217

    i think my eyeballs have latency...

    • @AerialMediapro
      @AerialMediapro 6 лет назад +6

      i think I might have the same issue with my brain...

    • @neilmorehouse6340
      @neilmorehouse6340 6 лет назад

      That's hilarious

    • @marty3469
      @marty3469 6 лет назад +4

      Neil Morehouse ....try watching after a few scotch n drys....ooohh !!!

    • @Smt_Glaive
      @Smt_Glaive 6 лет назад +1

      Oh god thats so true...

    • @SonnyKnutson
      @SonnyKnutson 6 лет назад +2

      +TheMadmacs
      I'm gonna be that guy... You actually do have latency with your eyes ^^ I don't remember the exact numbers but there is latency. The light from the object moving has to hit your eyeballs. Then they have to transfer that into electrical signals to your brain and your brain has to create the image and so on. There is latency :D

  • @EnuffsEnuff318
    @EnuffsEnuff318 6 лет назад +109

    I'm depressed and going to switch to RC cars.

    • @RABFPV
      @RABFPV 6 лет назад +14

      Don't let him get you down. You do realize Even is one of the worlds fastest pilots in the hobby. There will be people like that in the RC Car hobby too. Trust me I used to race them with my locals and I always get last place.

    • @EnuffsEnuff318
      @EnuffsEnuff318 6 лет назад +44

      I'll get into crawlers then.

    • @pyroman590
      @pyroman590 6 лет назад +10

      EnuffsEnuff318 Jesus christ, I needed that laugh.

    • @chetegan1845
      @chetegan1845 6 лет назад +20

      just get a DJI drone and hover all day

    • @ridewithjash
      @ridewithjash 6 лет назад +3

      @NPC #19548796 rc gliders are fun

  • @FJB2024_
    @FJB2024_ 6 лет назад +82

    I'm going to wait like 2 more months that way 8S will be the new 4S and I'll just serialize

    • @JulianGoesPro
      @JulianGoesPro 6 лет назад +5

      dude... just dig out your 3S and run them in series :) (of course I am kidding the same as you are :-p )

    • @garrykennedy5484
      @garrykennedy5484 6 лет назад +2

      I'm waiting for 12S.

    • @magicalpencil
      @magicalpencil 6 лет назад +9

      10kv motors at 1000v DC, amp draw 1mA lol

    • @Kabab
      @Kabab 6 лет назад +4

      Unfortunately this won't happen easily because the vast majority of chargers only do 6S. To do 8S you'd need to charge two packs...that would get annoying really fast.

    • @KrotowX
      @KrotowX 6 лет назад +5

      Better put gasoline generator on your quad :)

  • @jester3265
    @jester3265 6 лет назад +7

    Wow!!! That was amazing to watch. Now I know why I fly freestyle and not race. I couldn't even think as fast as you were reacting, brilliant piloting skillz. Thanks to all those involved.

  • @davidbershad7836
    @davidbershad7836 6 лет назад +58

    That boy can rip

  • @beeradfpv
    @beeradfpv 6 лет назад +6

    Watching this only confirms to me I need to sell everything or wait for senior DRL and MultiGP leagues.
    Nice job Evan!

  • @snoopyRC
    @snoopyRC 6 лет назад +1

    Thanks again guys for all you do. Evans DVR when he starts is like it's looking straight up.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      He runs about 70 to 80 degrees uptilt.

    • @snoopyRC
      @snoopyRC 6 лет назад +1

      Joshua Bardwell I have never flown more than 40degrees, but it seems like yaw would be a weak roll and roll would become a very snappy yaw. Seems crazy, but Evan is just crazy talented.

  • @DerkJohn23
    @DerkJohn23 6 лет назад +8

    The benefit of running 6s on lower kv motors is really simple. It reduces the current needed to achieve the same wattage by increasing the voltage. Lower current equates to less heat loss in the motors, ESCs and wires. This in turn gives you better efficiency. It's the same reason electric vehicles run at 400 volt, when it would be much safer if the battery groups were connected in parallel to give massive current and 12v. You would get the same wattage, but the wires and motor windings would have to be massive, and the heat loss would be insane.

    • @Louishouiller
      @Louishouiller 5 лет назад

      but how in turn does better efficiency help you in fpv?

    • @ArmedJackal
      @ArmedJackal 5 лет назад

      @@Louishouiller he said it in the video at the end, it gives you more consistent lap times. ^s is really only valuable in racing, not in freestyle because the total prop RPM is the same.

    • @TbstUSA
      @TbstUSA 5 лет назад

      Don't forget about the weight the extra two cells add.

  • @foam27
    @foam27 6 лет назад +4

    We were doing low kv, high voltage 10+ years ago in our planes, no big discovery.
    They are doing it in electric cars now as well, (real cars)

  • @tabemash0594
    @tabemash0594 4 года назад +1

    Correct me if I’m wrong but after just now hearing about it, I’m guessing the benefit here is that the motors can supply more torque or supply torque easier and so this helps the quad go between different speeds faster. Same rpm at the end but there’s higher theoretical max torque with this setup

  • @mrnobody9821
    @mrnobody9821 6 лет назад +1

    When different companies come together in a hobby (considering technically they are competition) to collaborate and answer questions like this. I’m lost for words. I haven’t seen this happen elsewhere. Well impressed.

  • @HectorPriamedes1
    @HectorPriamedes1 6 лет назад +1

    I thank God for you guys' dedication to the hobby. Always experimenting, documenting and sharing so we all learn. God bless!

  • @bushcrafter6416
    @bushcrafter6416 4 года назад

    This guy is the best I;ve found on utube for explaining the basics to newbies!!!

  • @vincent2r2b28
    @vincent2r2b28 6 лет назад +1

    100% understood why I could not go through 2 gates without crashing. I should definitely switch to 6s! Thank you.

  • @txcowboyfpv7898
    @txcowboyfpv7898 6 лет назад +1

    There is actually a gentleman named Allen in Conroe TX whom I visit and somewhat help tune 6 s quad building for catalyst machine works. Really awesome experience . He tunes 5 to 6 quads at a time. Awesome platforms. 6s is by far the best results.. period

  • @dttocs4746
    @dttocs4746 6 лет назад +2

    Higher voltage lower kv has been used in RC for years in Planes, boats, cars. It has just taken the quad community time to catch-up and produce lower kv motors. Some of us have been using similar setups for some time.

  • @tswoshman0016
    @tswoshman0016 6 лет назад

    Once, I made a similar test between 4s and 6s but, I took a 4s with about the same weight like the 6s. Therefore the 4s has a bigger capacity, which also provides more peak current.(4s=2300mAh/6S=1500mAh)So, my Quad had on both test flights the same weight. I did not feel any differences between my 6s/1550KV and 4s/2300KV. The power on my OSD was pretty much the same on both flights, even the flying time. We just have to do the math. It´s just physics. Power is power as long as you provide the same efficiency. Cheers and happy flying !

  • @woopweep9605
    @woopweep9605 6 лет назад

    If I’m not mistaken, Catalyst got the low kv, high voltage idea from Clint at Diablo Hobbies (my dawg), that guy tries everything! I’ve been running 6s on 1600 kv for freestyle for a little over a month now, all punch, no sag, less throttle management, gets you from point A to point B real quick! If you’re a pilot in the NW, support Diablo Hobbies!

  • @TransAm2k4
    @TransAm2k4 6 лет назад +9

    First off amazing flying... on another note the 6s 1250 mah would be more like a 4s 1800 mah. Wonder if those two would compare more closely.

    • @KrotowX
      @KrotowX 2 года назад

      Sort of. 6S battery look like a pig though, especially batteries with protective layer like CNHL Black. But it delivers. 1300 mAh - stable 5 min of hard freestyle. And 8-15 min for cruising around. 4S is now for 3" freestyle and cinewhoops.

  • @citofpv6640
    @citofpv6640 6 лет назад +1

    To make it clear:
    To compare both packs we need to have a look at the power/watt (P) and not the voltage (U) and the current (I) seperately!
    The equation is the following:
    ~ P = U * I
    So lets have a look at the actually energy (Wh) contained in both of the packs as used in the Video:
    ~ For the used 4s pack that would make 4 * 3.8V * 1.550Ah = 23.56Wh.
    ~ For the used 6s pack that would make 6 * 3.8V * 1.250Ah = 28.5Wh.
    That means that in the used 6s pack is actually more energy contained therfore it is no wonder you can go further with the 6s pack.
    It is also not quite right, that a 6s pack would need to have a lower C-Rating than a 4s pack, as some people say here!
    The C-Rate is the factor you need to multiply the capacety (Ah) of a pack in order to get the Amps you can draw from them.
    But a 6s pack with the same energy contained as a 4s pack needs to have a lower capacety ( less Ah) than a 4s pack.
    So lets do the math for a 4s and a 6s that both contain the same energy of lets say 25Wh:
    ~ For the 4s pack that would make a capacety of about 25Wh / (6 * 3.8V) = 1.655Ah.
    ~ For the 6s pack that would make a capacety of abotb 25Wh / (4 * 3.8V) = 1.096Ah.
    Now we have a 4s and a 6s pack that contain the same energy. So lets think about two quads that deliver the same amount power of 900W (i just made this number up) next but one runns on our 4s pack and the other one on our 6s pack, both containing the same energy.
    Lets calculate the current drawn by the quads in order to calculate the C-Rate the packs would need to have:
    ~ The 4s pack would need to deliver about 900W / (4 * 3.8V) = 59.21A to output 900W.
    Therfore it would need to have a C-Rate of about 59.21A / 1.655Ah = 36C to deliver the 59.21A and 900W.
    ~ The 6s pack would need to deliver about 900W / (6 * 3.8V) = 39.47A to also output 900W.
    Therfore it would need to have a C-Rate of about 39.47A / 1.096Ah = 36C to deliver the 39.47A and 900W.
    Ther you have it!
    THE C-RATE OF BOT PACKS (&S AND 4S) CONTAINING THE SAME ENERGY ACTUALLY NEEDS TO BE THE SAME (36C in this example) TO OUTPUT THE SAME POWER !!!
    However we have to remember, taht you can switch higher voltage more efficient than larger currents. But this effect is rather small, as we only use a very few watts in heat in our cable, connectors and escs compared to the power that is put out by the motors. Therfore this effects a quad not so much, but is a big thing on electric cars and so on, as the powerconsumption and therfore the current is much much larger than in our small racing-quadas.
    @Joshua Bardwell Please confirm taht, the people belive in what you are saying, for good or for worth.
    Like 95% of the time for good :D

  • @TinysLEDs
    @TinysLEDs 6 лет назад

    You should angle your LapRF at a 45 Degree Angle pointing to the top corner. I not angling you should be placing it in the middle of the gate.

  • @lawrencewilliams1477
    @lawrencewilliams1477 3 года назад

    THATS ABSOLUTELY FANTASTIC FASTEST I'VE EVER SEEN MAN ALIVE THATS QUICK AMAZING

  • @softstart100
    @softstart100 6 лет назад +1

    Great video for me being new and not familiar with different kv motors in comparison to lipo batteries. If now I could only dream of being so good at flying. Awesome.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      There are honestly relatively few people in the whole world who are as good at flying as Evan so don't feel bad.

  • @morphshag
    @morphshag 2 года назад

    I’ve just got in to FPV using an old HF transmitter and a USB cable to practice on a sim. Having trouble going around a simple course and here he is at speeds I can’t even see haha

  • @adrianryan1975
    @adrianryan1975 6 лет назад

    Thank you Joshua n your team. This has always been something that needed to be answered.

  • @drwtrex
    @drwtrex 6 лет назад +1

    Man that was awesome to watch. Some real nice flying man.....!!!! And now we know more about 6s Vs 4s

  • @Alejandro388
    @Alejandro388 4 года назад

    great review, but you overlooked one detail about 6S: Pulse 1050 is regular and 1250 is graphene model, that's why he was getting sag on 1050 and no sag on 1250

  • @matancohen8193
    @matancohen8193 6 лет назад +2

    Very nice video !!

  • @MartinFPV
    @MartinFPV 6 лет назад

    Great video, thanks for that.
    I chose the Brotherhobby R3 1660kv @ 6S with the R3 2550kv @ 4S for comparison and 1000mAh 65C 6S Turnigy Graphene Lipo with 1550mAh 75C 4S Tattu Lipo. The first setup is done. The 2nd comes in the middle of the month. I'm curious how it goes out with me.
    Videos of my experiences are on my channel.

  • @yoshicpg
    @yoshicpg 6 лет назад

    In racing land vehicles (1/10 on road and off-road), 2s is spec, but generally, no limit on capacity. But of course, keeping weight in mind when choosing the capacity of race battery packs. What I’ve seen, is if you are consuming more than 50% of your pack capacity the duration of the race, it will soften, as you saw happen in this video with the 4s pack. But, if I use a pack with higher capacity with a mild weight increase, the torque of my cars will not soften, as you see in this video with the 6s pack. More specifically, if the car I’m racing consumes 2500mah in a 6min qualifier and 3000mah in an 8 min main, I want to be using a pack with at least a 6500mah or better. In my own experience, keeping the amount capacity consumption below 50% will keep your torque level high throughout more of the race.

  • @Tritone_b5
    @Tritone_b5 6 лет назад +31

    The 6s (27.75Wh) had more watt-hours than the 4s (22.94Wh) wouldn't that also affect how the pack performs overall? An 1850mah 4s would have been more comparable in terms of capacity although it may have more overall weight than the 6s.

    • @ricktucker7560
      @ricktucker7560 6 лет назад +4

      Tritone fpv - agreed, I would like to see a test where either the energy capacity or the weight matched perfectly. There needs to be some reference characteristic that is equivalent, within reason, for the performance difference between the number of cells to mean something. There are two many variables that changed otherwise. I.E 10% heavier pack is too much IMO and the energy capacities where way off.

    • @charleswarwick4849
      @charleswarwick4849 6 лет назад +6

      That's immediately what I thought. When he says that the 1050 6s sags as much as the 4s that sounds like he might get a similar benefit to a bigger 4s pack and the difference could be attributable to battery capacity than the reduced amp draw.

    • @TobsterGO
      @TobsterGO 6 лет назад +1

      My thoughts exactly.... Gotta compare apples to apples... As mentioned above, capacity and or weight needs to be the same to have a fair comparison.

    • @LGBender
      @LGBender 6 лет назад +6

      There's a 1800 mAh R-Line from Tattu that weighs about 200g. Would've been a much better comparison imo.

    • @fellstar
      @fellstar 6 лет назад +2

      Yep. I'm running 6s, and I agree with the above issues with this 'test', Josh!

  • @Wayneandjayswildadventures
    @Wayneandjayswildadventures 6 лет назад +1

    Think I'm going to be sick. That is some super human skill right there

  • @jeramiebentley4054
    @jeramiebentley4054 6 лет назад +1

    6s is the same principle your homes heat pump runs 220v. 110v would take way to many amps to do the same work. The even larger electric motors run 440v.

  • @Guilefpv
    @Guilefpv 6 лет назад

    Interesting test....Does this mean we will see a new overhaul on the max cells that PDB, FC, ESC, Motors and even VTX and Camera with OSD have to be able to support 6s? Not to mention chargers, parallel boards and the capacitors we are using now. 35v capacitors should be sufficient right or do we need bigger ones as well just to be safe.

  • @steady747
    @steady747 6 лет назад +1

    cool video Josh. Damn the kid is fast

  • @unsettledroell
    @unsettledroell 6 лет назад

    Hey Joshua, in the name of science, fly a 3S quad with very high KV and a big big capacity battery.
    So that the thrust is the same as the 4S/6S quad and so is the C and Wh of the battery.
    btw. I think the difference going to 6s can only be because of decreased losses and the fact the ESC's and stuff can be a bit cooler.

  • @chrispychickin
    @chrispychickin 6 лет назад

    That slalom technique is really insane! He's going more sideways than forwards. That kid is pretty bloody amazing.

  • @lwg66
    @lwg66 6 лет назад +17

    Let's just hope the price drops on 6S

    • @___echo___
      @___echo___ 6 лет назад

      I kind if doubt thatd be anytime soon lol

    • @gabbychavesracing24
      @gabbychavesracing24 6 лет назад +1

      The 6s pack used is cheaper than the 4s pack used

    • @chuckcrunch1
      @chuckcrunch1 6 лет назад

      get 2 3s no one's buying them

    • @rcoym1
      @rcoym1 6 лет назад

      Am i missing something?? The 6s packs that Josh linked are cheaper than the 4s

    • @chuckcrunch1
      @chuckcrunch1 6 лет назад

      no demand for 6s

  • @kinzokushirogane1594
    @kinzokushirogane1594 6 лет назад +1

    I think you should test 6s vs 4s in your battery tester. See how much power (total energy) you can take out of them at a given wattage. That way we can see any obvious efficiency differences

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      This is actually the most predictable and least interesting test to do. The higher voltage will produce fewer amps for the same watts. The only variable will be the resistance of the wires, which will produce less heat loss due to the lower amps.

    • @kinzokushirogane1594
      @kinzokushirogane1594 6 лет назад +1

      Isn't that the whole point of the 4s vs 6s; Efficiency (or am I missing something)? The only REAL differences resistances in ESC, wires, solder joints, battery connector e.t.c. Only other things could be that the manufacture differences of 6s batteries or low-kw vs high-kv motors that could cause a difference.

  • @robe2295
    @robe2295 6 лет назад

    Reading this, reminds me of work when I try and dig into the numbers with out seeing the big picture. Seems like it comes down to personal preference... what will determine what’s better over the other. It’s clear in this case it was 2 min time trial and fastest lap. If we get into oh he crashed and bent a prop and it didn’t have the same thrust... we can debate all day. Just my .02 we are over thinking it.

  • @wyvern4588
    @wyvern4588 6 лет назад

    Makes sense, I don't race, but I still fly fast and mix low carving with floaty high altitude freestyle, this would probably make for a more enjoyable flying experience, since I have to switch up my flying style as the pack starts to sag.
    I'm invested in lots of 4s gear already, so I will give it a pass until my gear is tired.

  • @paultomas1334
    @paultomas1334 6 лет назад +2

    I would have loved to see what kind of amperage he was pulling on 6s. He was averaging 40-60amps with the 2522kv 4s set up. It must be considerably lower with the 6s if hes getting 2-3 laps more.

    • @mooosestang
      @mooosestang 6 лет назад

      Doubt that 4s current sensor was accurate or he wasn't using as much throttle as I think. There's about a 30-40a difference at full throttle.

  • @HDgodfrey
    @HDgodfrey 6 лет назад +1

    man he's quick! Thanks for the link to his channel.

  • @SigmaOfMyParts
    @SigmaOfMyParts 6 лет назад

    How about measuring the battery packs temperature after flight. This might giva a indication on the internal resistance and would give some hints on the comparability.

  • @mooosestang
    @mooosestang 6 лет назад

    Well that was fun to watch. I really don't care about the scientific merit of the results, nor do I care much about racing as anyone who's watched my videos knows, but I respect the time and concentration that must go into flying like that! I fly 6s for freestyle every day, i rarely use 4s anymore, 5 or 6s almost exclusively. 6s gives a very different flying experience, motors run smoother, there's a torque advantage. I swear everything runs better on higher voltage, just don't try to draw too many amps with high kv motors.

  • @RECK_Adventures
    @RECK_Adventures 6 лет назад +1

    Great test! I'm happy with the results

  • @kinzokushirogane1594
    @kinzokushirogane1594 6 лет назад +1

    Technically you should lower powerlosses in the battery as well as throughout the quad but I believe the biggest advantage would be in the battery as most of the energy is lost there. We could as well go to 12S but then we would probably reach limitations of cheap electronics

  • @dis3nchant3d42
    @dis3nchant3d42 6 лет назад

    Awesome video and awesome to bring my favorite racer in. People may have concerns about true watt hour capacity comparison but they that they're missing is is going to 6s as described in your video Does increase possible max laps and more importantly you gain so much more subjective consistency (in terms of feel) on 6s because of lack of noticeable sag, and so you end up with an increased potential for solid racing performance.

  • @bigpops74
    @bigpops74 6 лет назад +6

    Back in 2015, I calculated that you could get a more efficient setup (less current draw, and therefore less heat) by using 1550KV motors and 850mah 6S packs instead of the then ubiquitous 2300KV 1300mah 4S setup. Nobody was remotely interested and such motors (size, KV) didn't exist.

    • @rc-fannl7364
      @rc-fannl7364 6 лет назад +1

      It's a solid idea. In RC boats, this have been used for ages. With 6V setups vs 12V setups. 12V would always perform either equal with better runtimes, or go faster with same runtimes. Less losses when currents are lower, as lost power also adheres to P = V x I formula.
      Biggest problem back in those days though, was getting a charger to handle higher voltage batteries. And protection against sparks when connecting the battery. The higher the voltage, the bigger the risk on that.

    • @Blowfeld20k
      @Blowfeld20k 6 лет назад

      @RC-Fan NL
      Bro you just became my RC Jesus ... was wondering when i would see SOMEONE say this in comments.
      Low kv high voltage is nothing new in RC has been around since dinos walked the earth (slight exaggeration)

    • @rc-fannl7364
      @rc-fannl7364 6 лет назад

      You probably mean when RC Dinos walked the earth. ;-)

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      Part of the reason why this idea is only now coming to light in mini quad racing is that batteries and motors and ESCs that support it haven't been widely available.

    • @rc-fannl7364
      @rc-fannl7364 6 лет назад

      That could be true, but basically this is similar to once most quads being on 3S and now 4S having become mostly mainstream. So the principle higher voltage/lower kv is nothing new, it's just a new application of it.

  • @ohmliebfpv2555
    @ohmliebfpv2555 6 лет назад +2

    So clear and to the point Joshua. Great Job Cheers

  • @bicky420
    @bicky420 6 лет назад +1

    Does Evan dream in FPV? SO amazing.

  • @rc-fannl7364
    @rc-fannl7364 6 лет назад +3

    I wonder what would be the results on 5S and matching kv motors. Battery would be lighter probably, so less going wide on turns, but likely better efficiency and lower voltage sag than 4S.

    • @gitech7450
      @gitech7450 6 лет назад +2

      Yep, a nice middle ground :)

    • @fellstar
      @fellstar 6 лет назад +2

      6s does not inherently weigh more than 4s. Same with 5s. Equivalent power batteries the quads will be nearly identical in weight.

  • @j03y__
    @j03y__ 4 года назад

    Excellent use of an old filament spool!

  • @BlkRider
    @BlkRider 6 лет назад

    One question... did he use the same props? I would assume that lower kv motor would have more torque and thus be able to use "heavier" props to get more speed without big impact on battery life...

  • @Moneypizzle
    @Moneypizzle 6 лет назад

    It's really refreshing to see a culture starting to dictate what the manufacturers should be making instead of the other way around. I know the market is the biggest dictator but real world education is key. Keep it up Joshua! Greetings from Belgium!

  • @davidlondon3111
    @davidlondon3111 6 лет назад +1

    Totally awesome flying - thanks for sharing

  • @GibitStylin
    @GibitStylin 6 лет назад

    Just cause I haven't done the research yet, battery cost aside, is a 6s build with low kv motors gonna be about the same cost as a comparable 4s build?

  • @NumberOneChina
    @NumberOneChina 5 лет назад

    @12:20 Bardwell said it himself what I was thinking the whole video 🤣 if my goggles are on,
    pls no speaky 😂🤣😂

  • @devbloggs
    @devbloggs 6 лет назад

    Very interesting. Don't think I'll be running out to get 6s and low kv motors just yet

  • @AerialMediapro
    @AerialMediapro 6 лет назад

    you could have matched the current sensors' calibration for the two quads and counted the laps withing a given Wh to see which one is more efficient (flies longer). also you can match weights perfectly using some extra payload on the lighter one.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +3

      Yes, but these weren't my quads... they were Evan's race quads. One of them wasn't even wired for current sensing.
      After trying for over a month to get the perfect equipment and people together to make this video, I decided I didn't want to waste the option to have Evan do the piloting. If I hadn't made the video this weekend, it would have been another 2 months before Evan and I could get together to do it. So I decided this was worth doing.

  • @mshane86
    @mshane86 6 лет назад

    Great info but just for every day flying I wouldn't switch over. It's not like I'll ever fly my quad this hard or well anyway.

  • @blackmennewstyle
    @blackmennewstyle 6 лет назад +8

    This is the kind of videos which makes you feel like you are a such terrible pilot lol
    Holy moly padthai that was insanely fast!

  • @pspicer777
    @pspicer777 6 лет назад

    Holly Moly!! I have an explanation - the kid is short .... short neurons so the electrical impulses don't have so far to go, hence fast reaction time - that's my theory and I'm sticking with it!!

  • @SP4NK4Y4NK
    @SP4NK4Y4NK 6 лет назад

    I guess unless you’re racing professionally using 6s with low kv is a bit overkill. His runcam osd battery gage is hooked up to the current sensor

  • @Clutchoid
    @Clutchoid 6 лет назад +1

    Very interesting video, would love to see more comparisons of 4S high KV vs 6S low KV.

    • @gabbychavesracing24
      @gabbychavesracing24 6 лет назад

      GingeFPV ruclips.net/video/WX86BNl4NJY/видео.html
      Shameless plug haha

  • @lukejones2607
    @lukejones2607 6 лет назад

    Joshua, love the video been waiting for this for a while!
    Quick question: for a capacitor on the battery leads of a 4-in-1 esc on a 6s low kv quad, is 35V enough or should it be 50? I’m assuming 1000uF is enough?

  • @stephanotto9225
    @stephanotto9225 6 лет назад +1

    Hi Josh,
    why you did not make a Blockboxlog analysis? And why you choose a 1250mAh 6S Lipo? A 6S 1050mAh would be fair! This is like using a battery with a 25% better C-rating for the 6S Setup. This is unfortunately not comparable ☹️

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад

      The goal was to compare batteries of similar weights. The 1050 6S is 20 grams lighter than the 1550 4S. The 1250 6S is closer in weight and it is what Evan actually races.
      Evan's quads were not set up for blackbox unfortunately.

    • @stephanotto9225
      @stephanotto9225 6 лет назад

      Ok, I understand.
      But why you used two types of batteries. 100C HV vs. 75C. That adds one more variable to this test. How can you prove that the battery doesn't makes the difference? And a HV battery charged to 4,2V doesn't have the rated capacity.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад

      This is the equipment that Evan uses to race with. That is why I used it.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад

      I don't think Evan actually used the HV. His battery weighed 194 grams which is the correct weight of the non-HV 1550. I think he mistakenly said HV in the video is all.

  • @ofiasdfnosdf
    @ofiasdfnosdf 6 лет назад

    Great video thank you - just what I was looking for. I'm guessing there may be other benefits as well to 6S such as less stress on the lipo? It would be interesting to see where the threshold is for efficiency (e.g. testing 7 or 8 cell with even lower kv motors).

  • @Bill14886
    @Bill14886 6 лет назад

    Makes sense to me, great information. And pretty amazing flying too. Thanks for sharing,

  • @samlovefpv249
    @samlovefpv249 6 лет назад

    Great Camera. Very Clear. okay back to the viedo

  • @sakibian01
    @sakibian01 6 лет назад +1

    So this is the famous heads up fpv. I saw him race with Bms

  • @charleswarwick4849
    @charleswarwick4849 6 лет назад +1

    So, from a theoretical perspective, higher voltage systems are more efficient because they loose less energy as heat due to reduced current draw. However, do we actually see that much heat build-up on 4s? If a motor wants 500watts and you spread that wattage out over 1, 2, 4, or 8 cells the wattage per cell will be decreased, but couldn't you just use a better cell to deliver more power and keep the voltage the same? Or is this 6s basically a work around to the limits of battery cell technology not being able to keep up with the total power draw?

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      I think you are on to something with the last sentence. The cells we have are about as good as they can possibly be and they are still struggling.

    • @JNacoustic
      @JNacoustic 6 лет назад

      Yes I would say that last bit is exactly whats going on here.

    • @charleswarwick4849
      @charleswarwick4849 6 лет назад

      I'm sure its more complex than this, but the way I understand batteries the discharge capability is a function of both rated current (C) and capacity (maH). If you look at batteries of different voltage and normalize watt hours (by reducing cell maH size) and keep the C-rating the same, there is no change in possible watt output, but a significant change in the total amperage which is what we expect. HOWEVER, now that I'm doing that math, if you look at battery cell load (which let's define as the percent of rated amperage (Mah*C) used e.g. 40A draw of 100A rated is 40% battery load), each cell at the indicated wattage has the same overall battery load. The theory was that the cells would be under less stressful amp draw under similar wattage, but that doesn't seem to hold up. Did I do the math correctly? This was a surprising result that I'm kind of grappling with. Thoughts?
      docs.google.com/spreadsheets/d/1ViL2InKlvKEhI-uDIoFnUbdX-p7UhhbEvBGyuyZqE8A/edit?usp=sharing

    • @BBFPV
      @BBFPV 6 лет назад

      U R right, power-density and energy-density are nearly the same.
      A low kv motor need more windings in the coils, this increase the resistance. At the same rpm the efficiency didn't change a lot.

  • @harrydutoit6740
    @harrydutoit6740 5 лет назад

    Can you run a (ex 2700KV) motor on 6s and just adjust your throttle down to be able to fly longer without burning motors.

  • @ivangutowski
    @ivangutowski 6 лет назад

    Ok that pilot in the first shot is insane !

  • @j.finesseflights1403
    @j.finesseflights1403 6 лет назад +2

    I like to call that floggin the dog...thats what the kwad sounds like around that course!!!

  • @whoami1975
    @whoami1975 6 лет назад +1

    Incredible flying ... in this case it doesn’t matter if on 4s or 6s

  • @WoooSaaaW
    @WoooSaaaW 6 лет назад

    I've found what it really comes down to is the battery weight or MAH. If you compared an equal weight 4s and 6s battery im predicting the results would differ less and you would have near equal endurance and speed. I run 4s and 6s and i do find 6s to be faster but i run a battery that is 25g heavier.

  • @MiNiD33
    @MiNiD33 6 лет назад

    So what you're saying is a heavier quad goes faster? (over the course of a race).

  • @maribelquinones640
    @maribelquinones640 5 лет назад

    That was wickedly fast!!! Nice observations

  • @flappybird_fpv8370
    @flappybird_fpv8370 6 лет назад +1

    This is real life scenario test. Having batteries with same wh and weight is almost impossible as bstteries with same numbers on still vary between one another. I take this as reliable test but another thing to consider is price of batteries 6s for top racers with sponsors and free batteries to kill.

  • @SteveKfpv
    @SteveKfpv 6 лет назад +3

    Yeah a real comparison would be an 1850 4S and a 1250 6S. Unfortunately this turned into more of a capacity comparison. No wonder there is less sag on a relatively larger battery. Love that youre exploring this but it would be great to see the capacity of the batteries matched better. So they are close in total and weight to see if there really is a difference. I suspect not

  • @bugsysiegals
    @bugsysiegals 4 года назад

    Wow, I can’t even imagine ever flying that accurately at that speed, impressive!! @Joshua, we’re you able to watch him flying through your googles? I’m considering the DJI FPV goggles and wondered if I could spectate analog pilots if I attach the analog module?

  • @SickocrowAU
    @SickocrowAU 6 лет назад +5

    Has to be said the 6S pack has about 20% more Watt hours. I'd expect more laps with it. Yeah 6S is more efficient, but this isn't a direct comparison. You've even got Evan saying his 1050 6S flys the same with the same sag as the 4S.

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +3

      This is a valid critique, and I understand the comparison here is not perfectly A/B. This was a compromise I made in order to get the test done. (I have actually been trying to get the test done for over a month and various things have been getting in the way.)
      The 6S 1250 is about 15 grams heavier than the 4S 1550. If Evan felt he could get the same performance out of a 4S pack that was only 15 grams heavier, he probably wouldn't be flying 6S. Bear in mind the Pulse 1050 mAh that "performs the same as the 4S" according to Evan is only 171 grams, about 20 grams lighter than the 4S 1550. The takeaway seems to be that 6S performs slightly better than 4S for the same weight of battery.

  • @godsun358
    @godsun358 5 лет назад

    This boy is not human I got a double concussion just watching them

  • @barry.anderberg
    @barry.anderberg 6 лет назад

    I have some 2207 1922kv hyperlites on my 6" floss.. waiting for this awful Minnesota weather to clear so I can maiden!!

    • @JoshuaBardwell
      @JoshuaBardwell  6 лет назад +1

      I honestly think the next place to go is to start working kv back up to find the exact perfect sweet spot.

  • @fpvdb8964
    @fpvdb8964 6 лет назад

    This was fun to watch and very interesting results. The content on this channel is way more exciting since you quit your job :)

  • @kerjs02
    @kerjs02 6 лет назад +2

    O MY QUAD I didn't need to see this. I now know I will never be able to compete in a race. I don't event think that fast.

  • @TheHeadShotBoom
    @TheHeadShotBoom 4 года назад

    What’s the best RTF 6s Kit that’s setup for DJI FPV and Crossfire?

  • @tryhardfpv5351
    @tryhardfpv5351 6 лет назад

    In your battery testing are you looking at the difference in the amount of power that a 4s battery can deliver over say two minutes compared to a 6s of a similar weight?

  • @chancewilson1161
    @chancewilson1161 6 лет назад +4

    Man he can whip that thing around a track.

    • @zacharias_b
      @zacharias_b 6 лет назад +1

      thats some mean whippage

  • @rufusglyn6091
    @rufusglyn6091 6 лет назад +1

    Wow loved that video. Boy that guy can fly. Defo a lot more embarrassed buy my lack of skills now. 😂

  • @ModitRC
    @ModitRC 6 лет назад

    Why when we have these discussions battery density, total watt hours, and weight aren't really discussed?

  • @MorningView
    @MorningView 6 лет назад +1

    I just wanna say Evan a beast. And I'm go get me one dem bracelets cause if MLB players wear em they must work.

  • @MrMPod
    @MrMPod 6 лет назад

    great job and flying .....

  • @MaximusFPV
    @MaximusFPV 6 лет назад +1

    This kid is the reason I have self esteem issues hahaha

  • @marvfpv1590
    @marvfpv1590 6 лет назад

    Is the xrotor Stack also on the 6s quad? It’s only rated for 5s, but some run it at 6

  • @BigWillieFPV
    @BigWillieFPV 4 года назад

    I know I’m years behind but I fly differently to pretty much everyone on the planet these days 3D LOS at night 🤘🏻all my old 4s packs are pretty much dead and I am still flogging them 🤣 how would a 6s setup go with rapid change of motor direction? I’m still runnings Lumenier 2350kv, I tried tmotors years ago and they wouldn’t change direction, so I have no idea what type of motor to use for 6s, I was looking at the Xing Camo pink1700kv a while back they looked awesome but can’t find them anywhere now, I want to change my setup on 3 Warp quads the same and I’m going to setup one as a basher so I can give people a go at 3D.

  • @alexdalton7290
    @alexdalton7290 6 лет назад +1

    Joshua bardwell said SEND IT