Turnigy L5055C-700 Brushless Outrunner 700kv

 Cravin 53 points

6s with 14x7 will pull a 8-9 pound plane well but if you put a bigger prop on it. it will get hot if you need a bigger prop look at the a or b version of this motor if a 14" is good then this is the motor you want.

 scottc 100 points

from what i can tell in the specs this is not a heli motor so i would look for a motor made for helis.

 ChristianP 127 points

I think the power would suffice for a 10lb bushplane but you would not have that much margin left over. For this kind of plane I would recommend a big prop with low pitch so as to get much thrust at low speeds, large prop also entails the benefit of high efficiency. I do know that this engine together with 6s and a 13x6 prop gives 4,2 kg of thrust so perhaps you should use a 14x6-7 or 15x5-6 in order to get vertical performance. One can always but extra strain on the equipment to get more power but it will limit lifetime more.

 Gary 2968 points

This motor is capable of providing a lot of power if you wish it to.For your trainer you need around 600 watts,so this motor with a 4cell lipoly battery will draw 41amps and give 600 watts of power,a 4000mah battery will last just under 6mins flat out or a 5000mah will last just over 7mins flat out.

 Arnaudd 43 points

hi gary.. can u tell me if i could use this motor on my kawasaki hein , using a 15x10 prop, and a for s bat. tried to use motorcal, but cant figure it out.

 Gary 2968 points

Hello Arnaudd,a 15x10 is way to big for this motor,even on 3 cells the current draw is way to much,please let me know the size and weight of your Hein and which size battery you would like to use.

 Arnaudd 43 points

the hein should weight about 3.2-3.5 kg max using a 4s 4500mah bat.. i have been looking at the turnigy 50-50 600kv 1500w/g60 500kv. i have currently flew it with the g46 550kv with a 15X10,but i think it need more power.so we need something that spins more than 14.8x550kv with a 15 x 10..right? i try to contact u on other discussion.hope u get this one. thanks

 Gary 2968 points

Hello Arnaudd,on 4 cells you will struggle to get much more power,looked at this motor and the G46 and the results are very similiar.I did find though that the 15x10 does not bring out the best in either of these motors,it is a bit co****,your present motor with a 16x8 improves the watts slightly by about 25 but the thrust increases quite a bit by over a 1000g,would give that a try and see how you go.

 scottc 100 points

i dont have the motor but i will need a prop test to make sure the watts and amps are within the motor and esc range, should be a brast tho.

 RCHouse.cz 2 points

14*8 is too much, I tried it with 12*6 and it gets hot and amps was over 65A, with 13*4 temp. was fine and amps 55A, but I have it for 60" wingspan 3D, so I dont know if it does enough power for 72", I think it can be possible if weight of your plane is max around 2.5kg

 Royal Skytech 7 points

I used it with TGS 14*8 prop. with 6s 5000mah battery. Pretty good climb at Half throttle. My plane weight is around 4.2kg. And it doesn't get hot with 14*8 prop.

 Gary 2968 points

I have calculated that with a 7s pack then you will need to use something like a 10x5 size prop,this will give you 1480w and 3760g of thrust and you will be drawing approx 58amps.

 gewiens 22 points

Well i got the motor today and out of the box it sounded bad just spinning it by hand. In the plane it was horrible. Ran a test anyway thinking it would blow up on 7s with a MAS 12x6. Held together and my specs were 58amps and 1320watts. As i knew they would be, any calc program is always wrong. Real world tests are never the same as a calc. Oh did i put a period after that? Yup, just checking. POS motor. Can magnets are hitting the commutator. This is the 3rd air motor i have had problems with but the first 2 were loose magnets after first runup. No more for me.

 JOHN .R. 2 points

Hi rayonnair, I too had the same problem and no way is there a nut that will fit this thread. In total desparation I got a flat file and took the edge of the thread until i could get the supplied nt to screww on,it now works fine. H>K> please check these things during production.

 JOHN .R. 2 points

Hi JOHN R> again i have a better solution to this problem seeing thatH.K. do not stock parts any more, all it involves is to turn the shaft that the nut won't fit down to six mm and use the adaptor that normally goes on the other end. hop this helps/

 JOHN .R. 2 points

from JOHN R. I have come up with the ultimate fix for this problem< put the boss that the shaft extends from in a lathe turn the threaded shaft down to six mm and fit the prop drive with the black spinner nut that will clamp onto the shaft problem fixed. I know I have done this allready. Regards from JOHN R.

 ChristianP 127 points

Since it delivers 1600W it is quite similar to a 60 size glow engine, but due to the fact that it is an electric engine it can deliver the power at a lower rpm with better efficieny in combination with the right prop. Furthermore you can burst it beyond 1600W, lets say 2kW for a few seconds so it is probably closer to a 75 size glow engine.

 ChristianP 127 points

The spacing is 14mm from center to center at the backside and 21mm at the front.

 ChristianP 127 points

But diagonally it is 20 mm at the back and 25 at the front.

 Felar Furlong 1081 points

i count 14 poles. some info: 16x8 apc-e * half-charged 4s - 70a, 7300 rpm, 900w. barely warm after 1-2 min static, tested with castle ice 100.

 Chris 66 points

It's actually quite hard to get 1600W unless you use 6s lipos and a small prop. I am running WOT 75A on my setup (13x8 prop 5s lipo)Battery is around 30deg C after an 8 minute flight. Mind you, I'm hardly ever WOT.

 ChristianP 127 points

Yea but wouldn't it be even easier to reach 1600W using 8s lipos!? A smaller prop results in higher rpm, which in turn results in higher emf and lower internal voltage and hence also lower current and lower effect, the opposite of what you claim. Apart from that I would like to thank you for the information you supplied by sharing your set up data.

 Chris 66 points

Bloody oath it would reach it on 8s easily, what about the voltage rating of the motor? I didn't claim anything other than "I'm hardly ever WOT". What was my claim..so I can understand the "opposite" statement?

 ChristianP 127 points

Sry, it came out wrong, I am Swedish, but what I was refering to was your statement about reaching 1600W using a small prop. With a given, and high, voltage one could approach 1600W from above, from lets say 1800W, using a smaller prop, but I was assuming that you meant approaching 1600W from a lower effect, in which case a bigger prop would solve the problem. Maybe I misinterpreted you...

 Chris Mab 15 points

This motor produces 4210g of thrust at 12000 RPM when using 6S with 13*6 APC prop, will get speed of over 60 MPH.

 Donald 5 points

On a parallell 4S 2650 (5300mah capacity) nanotech, running an APC 15x8 prop I'm hanging a U Can Do .46 on the prop easily with 15 min flight times.

 Vladimir 2 points

did somebody try with 5S and 12x8 prop...?

 Chris 66 points

Just to give others ideas: On 4s lipo with 13*6 prop, P=650w, I=40A. I've since changed to 13*8 prop for slightly more power and will try 14x6 and 15x6 next. The plane is Extreme Flight 58" extra 300. I wanted to reuse the batteries I already have rather than going for a 5s setup. Chris

 Chris 66 points

On 13x8 prop, 5S 3000MaH zippies I get 8-10 minutes very useable flights. Current is at top end for the motor - 60a WOT but it is dragging the 58" Extra around easily at 1/2 throttle. Battery takes just under 2A to fully charge. Don't think I'll make any other changes, I'm satisfied now.

 ChristianP 127 points

Anyone knows if a 3 blade 12x8 would result in too much amp together with 6s? Any recommendations on how to get the most out of this engine with 6s and any type of 12 inch prop?

 Chris 66 points

I haven't tried a 3 blade but I am sure 6s would over current it. 5s would be fine. I think you will need a lower pitch if you want to use 6s otherwise go for the lower kv motor like the A series.

 ChristianP 127 points

Yes I have thought about getting the B series as its kv is lower, however its max amp is a bit lower, 55A instead of 60A, and the max effect is also lower. Rest assure I will take your worries into consideration, thank you! I know that some managed to run the old 600kv version at 100 amps which by far will meet my power demands, it will be interesting to see how many amps people can put into the current 600kv version.

 Chris 66 points

Ahh, now I see, sorry I thought these were 6 cell only. Please accept my humble apologies :-)

 kinshas 24 points

Could U plz verify exact weight of the engine? BZ in doubt with Turnigy L5055B-600 and this one same weight 296g

 Strangeengine 78 points

Would this motor work in a 60"/1520mm Great Planes Cherokee at around 3060-3290 grams? I have 5s and 6s packs I want to use. Thanks

 ChristianP 127 points

It should work fine but it might be a bit overpowered but what do I know? I am installing this engine with 6s on a 70" trainer at 2.5 kg.

 Strangeengine 78 points

Thank You ChristianP
I ordered this and a Turnigy Trust 70A ESC. We'll see what happens

 Cravin 53 points

ok im fairly new to electric but i have this motor and now you are all making me want to run some tests! but what you all are saying is not making much sence to me 1st 8s is the only battery that is going to get you to 1600w and 12 and 13" prop sounds to small 4 this thing i dont think its going to get loaded up at all with a 13" prop i would think it would need at least 14" with a lower cell battery. i plan on running a 6s 5000ma battery and 70 or 80 amp speed controll.

 Cravin 53 points

i still do not have a meter but have it in a 55" pitts-12 over 7.lbs 6s 14x7 prop. prop looks way small on the plane but moter pulls it around like a rag doll unlim verticle. cool to the touch after flight.

 Arnaudd 43 points

hi guys , could i use this motor on a kawasaki plane,weighs around 3.5 kg. using 4s batteries and a 15X10 apc prop. any item what i might expect?

 Chris 66 points

The KV of this motor is way too high for that prop and you would end up pulling current way above the rating. Go for the lower KV version and you should be right. Or go for a higher current rated motor. Chris