BrotherHobby Tornado T5 Pro 3115-1050KV Thrust Tests

[@nasone32]

Bortherhobby send more motors to this guy!!!

[@modocfpv6305]

This motor gets used on 10” and 5-6S in the community. We use like 2600-3000 mah 6S lipos.

[@timulorobi]

Yeah, was wondering why oh why not tested with 6S :/ (ESC not bigh enough I guess..)

[@caseyvick7333]

I'm using these on a 10" deadcat frame w/a 60A 4in1 ESC but it's acting really strange for me just getting off the ground. Do you have any tips for me as far as BLheil_32 or BetaFlight setup? So far I just configured everything like a normal 5" setup w/ motor rotation reversed. The only thing I've changed is lowering the idle speed to about 3-3.5 because the 10" props on 6s wanted to pick it up off the ground at idle.

[@jeanpaulsart]

can we use it in 360mm - 380 mm aluminium frame dude please answer me

[@modocfpv6305]

Atakan Erdal it is a bit unusual question. Of course you can. Question is if 10“ or at least 9“ props still fit. I would not use the motor on any prop smaller. Just dead weight and it might flattem out your props

[@dividingbyzerofpv6748]

@@caseyvick7333 i tried some 900kv 2812 motors on my 10in and it was hovering at 15% throttle with an AUW of 1350g with 1800mah 6s and the hero 7. It was a bitch to try and tune. It would hit 60mph at 50%throttle and was just too over powered for the tune I tried to put into it. Motors and battery came down hot. Went to the 3115 640kv version of this motor and the tune settled in instantly. Loving the way it is flying on 6s with 10in props. Hoping the motors can hold out for 8s, I have everything I need to swap to 8s if I wanted with APD escs.

[@dividingbyzerofpv6748]

Would love to see the 640kv on 6-8s with 8-10in props.

[@divingfalconfpv4602]

Crazy seems at same thrust the lower 3s lipo is more efficient than the 4s lipo.

[@nasone32]

I did some paper calcs, I would probably throw 6s on a 9 inch (I dont know if it works on the stand, surely does in the air but we know the stand is much more challenging). But I think the future of these bad boys is 8s with one of the lower KVs, as a great way to recycle our old-ish 4s batteries putting them in series :) We just need some cheaper 8s esc. i think airbot/holybro metal fet esc can take 8s. The fets can do for sure, the on-board voltage regulator is the problem.

[@EngineerX]

You're very right. The motor was barely stressed nd it was my fear of cooking ESC or/and thruststand electronics that kept me from running 6S but after reviewing data I think they should be able to handle it. So I'll see about doing some 6S runs. Definitely Yes! 8S is the next big step for motors like these. The higher voltage should really wake up their performance. ESC manufacturers have to start working on reliable and affordable 8S ESCs. Using 4S packs in series would be brilliant. We got plenty of those.

[@dividingbyzerofpv6748]

@@EngineerX i was teying some of the Strix 65amp 6-8s ESCs for 16 bucks but I have had some QC issues with them. Like one ESC blew up while flying a 10in 640kv build on 6s and put my quad in the ground at 40mph. Moving to Iflight 8s rated ESCs. If those dont work out going to the Aussie ESCs. Gonna cruise on 10-12inch props with 640kv and 12000mah 6s4p LithiumIom. Then will swap to 10in triblades and 8s for ripping.

[@EngineerX]

​@@dividingbyzerofpv6748 Hope the next ESCs don't give you no grief :) sucks big time to have your rig dive into ground due to a bad QC ESC. I'm curious to see how long your flight times will be with the 12" props/ 640KV / 12000mAh pack. (just watched your video..... 20+ min = awesome!

[@dividingbyzerofpv6748]

@@EngineerX i have hit 12 minutes on 10inch props just getting to the 3.6v mark on the big 6s4p. That is the heavy build. I also have a light weight 10inch now that is ridiculously powered flying 3115 640kv and using a 6s2p setup. Will be trying to get a more detailed video of the two builds up soon. There is footage of my new 10in while flying a LiPo where it basically is behaving like a 5inch in terms of control. 640kv 6s on 10inch is a very happy apot for me. Hope to take it to 8s soon. Heavy build us running Iflight 8s escs on 6s. Light build is on hobbywing g2 4:1 and flys level cruising at 14 amps. Bursts up to 60-70 amps which is within the limits of my 18650 while running 6s2p.

[@EngineerX]

@@dividingbyzerofpv6748 That's very good info\tips. Thanks for sharing. Definitely will help anyone looking to put together a similar setup. Looking forward to checking out your new videos and your 8S tests.

[@pasifpv5508]

The limits for these motors is much higher, try a 6s with 9 inch prop. I use this motor on a mini talon with a master airscrew 9x6. 100% power for 30 seconds no problem.

[@EngineerX]

You're 100% correct. I chickened out at 5S. I was standing a good 5meters away just in case something came out flying. But yeah, you can see the motor is not stressed at all. It was barely warm to the touch. I may have to see if I do a couple of 6S runs with 8 to 10" props

[@frasersteen]

What really surprises me about these bigger motors is how little thrust they make. Sure they are decently more efficient, especially at lower thrust levels but given its weighs significantly more than double what a miniquad motor would it's only delivering ~40-60% more thrust with several times the prop area.

[@EngineerX]

Yes that's noticeable. I thank they do have more power on tap but I sort of got to my test set up/chicken out limits. The motor was barely warm after each run so for sure it wasn't being stressed much. I was afraid going to 6S that it was going to draw too much power for the thrust stand to handle. I may have to do a take-2 and do some 6S runs with 8 to 10". Should approach 4kg probably.

[@frasersteen]

@@EngineerX Even then, it's going to be

[@travisbrann5016]

We use 3000mah 6S packs. No one uses anything under 2200mah as far as I know.

[@travisbrann5016]

Also no one uses 8". We use at least 9" triblades.

[@modocfpv6305]

I have seen you going up to 70-80 amps with your thrust stand. Couldn't you do additional 6S 10" tests? That would be awesome. :-) Like with the Graupner & HQ 10x5x3 and aeronaut 10x7x2. That is what we use. I personally would love to see the MAS 10x7x3 (it needs a low profile nut and barely makes it).

[@EngineerX]

Yes . It can do 70A short bursts. When i ran tests I thought it was going to be higher Amps so I stopped at 5S. 10x5x3 at 6S would most likely exceed my comfort zone. Static thrust really overstresses motor /ESC/ power supply so I wouldn't want to risk going that high.

[@modocfpv6305]

@@EngineerX So what about 5S and the Graupner 10x5x3, 9x5x3?

[@DavidHanniganJr]

Hell Yeah!!! He's Back!!!

[@marcidannafpv]

hello I wanted to ask you for advice on this motor but the 3115 1520kv what do you think propeller 7050 8s esc 80a can go

[@EngineerX]

Sorry I didn't have the capability to test at higher than 6S voltage. However, only guess/estimate - this motor should be OK with 7050 prop at 8S. It shouldn't be much stressed. Of course, always check motor temperatures right after a fast run, make sure magnets don't exceed operating temperatures as they begin to deteriorate and you loose power little by little - that's the theory. It will probably make close to 2.5 or even 3.0kg of static thrust at max throttle, but not sure for how long you can sustain it. Batteries get voltage sag and as motor warms up also there's a decrease in power.

[@lacrosim6545]

Hello . I know you are the best on what you r doing and i would like to know how many amps one xwing 2208 1800kv on 4s with a hq 7x4,5 v1s can draw .... it’s for a plane . Do you have any idea 😅.....

[@EngineerX]

For single motor operation with a very good battery pack that motor-prop combo can pull 30 to 35A sustained. I would be cautious with motor temperature and check if running too hot. That 3blade 7" prop could pull enough Amps to heat saturate motor if run at high throttle for long. That also depends on how much weight and how much drag it'll have to handle. That's my best guess. Just check motor temps to make sure.

[@sunoncream1118]

will it take an hq prop 10x5x3 on 6s? i saw that in a smal beast class drone

[@EngineerX]

Should be Ok in a "light" setup. I've seen some setups running those props on 6S but I have not tried them myself.

[@eliavedri7876]

good :) I was waiting for this video, interesting results, I think this Motor is capable of more than you tested here, you were pretty cautious lo, i saw videos of it on the 6S with a 2 blade 1050 prop, seems to me that this is the best motor for my 10 inch build. I wonder if it can handle the HQ 10x5x3 props on 6s, that would be sweet :)

[@MCsCreations]

Fantastic testing, dude! 😃 You know, I saw a TBS Discovery clone frame at AliExpress, but made of carbon. So... A set of those motors, a T-Motor F55 esc, a good FC with iNav... Would be beautiful! 😃

[@EngineerX]

That would be a gigantic Killer setup LoL. Good list of components there for sure!

[@MCsCreations]

@@EngineerX Oh, almost forgot. 4s and 10" props. 😃

[@VG-sh8nj]

why not tested on 6s ? :D

[@EngineerX]

Was afraid to fry 40A ESC and thrust stand with such a big motor. But I think test equipment should be able to handle 6S with 8 and 9". I'll try and run those soon.

[@VG-sh8nj]

Nice :) I use 2812 Avangers V2 1115kv on 6s. With 9x4,5x2 prop , 9x5x3 and 10x4,5x2 props. Very powerfull build :)

[@EngineerX]

@@VG-sh8nj Then definitely, this motor can handle 6S, even 8S but difficult/impossible to test that much volts and power on my equipment

[@noisy_boi_fpv_3920]

I run 10x45 on 1050kv apd 80-120amp esc pulls 72amp a corner 288amp full punch. Beast!!!

[@BBFPV]

Which size can I use with the 640 kv version on 6s?

[@EngineerX]

Propeller? I have not tested 640kv so I can't give safe suggestion. My best guess would be 12" should be OK. Also 11" prop 1145 is safe because I have used them with a smaller motor about same kv on 6s. If with 12" prop, motor still running cool, then you can try 13" but check motor temperature after a short lap and keep checking to make sure for first flights.

[@BBFPV]

​@@EngineerX Thx. Do you know www.ecalc.ch/xcoptercalc.php Unfortunately, the 640kv is not free.

[@craigjones1463]

what about 6s dude with larger props instead and pissing around with small props and 3s lipos

[@EngineerX]

Sure. Send me a power supply and ESC that can sustain up to 100A continuous draw so I can fulfill your request 😁 I'll return once test are completed. When I started testing main focus was on 22XX size and smaller. Current test setup can't support high power requirements for static tests on 6S and props larger than 9". Sorry I'll have to let someone else run those tests :-)

[@skyracer7402]

no one uses 3s lipo test with 6 and 8s

[@scottpetersen6869]

Disappointed in this review BH specs on 900kv 12 inch prop and 6s

[@EngineerX]

Afraid of cooking my 40A ESC and thruststand. For sure the motor has a lot more to give. Sorry about your disappointment, hopefully someone else runs better tests.

[@scottpetersen6869]

EngineerX Sure don’t wreck your equipment. Need upgrade for Xclass