Gday flybug Im running a 12 blade with this motor and get max of 44 amps on a full 5 cell 2700 35c battery the average is about 42 or 43 so a six cell setup is out as the max for this motor is 42amp. Hope this helps
thanks crashtest101 , I did test mine on 4s 1300 40c plush 60a fresh batt and pulled 37A and 533w mind you the exhaust is at 55mm.Just wasn't sure if it would take 5S and opening the exhaust to 60mm plus I'm sure will help too.Just thought the watts were a bit low. Got it mounted on the HK grey EPO jet kit ( F16). Sure sounds nice .Now waiting on my 2200 5S to arrive. thanks for the help.
I bought this motor, did a test run in a 70mm 12 Blade CS and had problems with the motor wiring. Could somebody help me and tell me how to take the rear aluminium cone off the engine? I also need to change the bearing any ideas where i could get a high quality ones? Thx for your help.
I don't know what is the best but a good setup is
64 mm 10 blade with this motor.EDF were made from 64 mm edf plastic housing (HKEDF64),shaft (109-7B-4)and DPS Series 64mm EDF 10 Blade Replacement Impeller
Measured values are with nano-tech 6S 1300 mAh 45C and 45A controller:
20,6 V �* 44,3 A �* 955 W �* 1050 g thrust
Because the T-45 has only 55mm exhaust you may lose some of thrust.
You can also use a 7 blade edf with same setup parts which should not have loss of thrust with 55mm exhaust.
I am making a composite Avro Arrow for a school project with foam core. It is calculated to be no more than 5 - 5.5 ibs. I want to use an edf for this plane. Do you think this motor would supply enough power with a 3 blade, 70 mm EDF unit? I just want my jet to fly stable. It doesn't even need to do aerobatic maneuvers or anything. I Read somewhere that I need at least 600 W of power to do this. This motor obviously exceeds that, but how about the kV? Im really sorry, im a a newbie at all of these!
I made that choice because I had the Esc's in hand and want them to run cool. I would atleast go with 50amp esc's this is what is what they come with ready to fly. 40 amp might get too hot for 42 amp max draw
Im not too worried about teh amp draw , the esc's Im using will burst to 55amps , Im not planning on flying her flat out and Im hoping that twin 70's on a model weighing in at less than 2.5 kg's will fly well at half to 3/4 throttle. Unlike some that require wot to keep them in teh air.
Im a newbie here so I just wanted to know if I could use this motor with PRODUCT ID: OR003-00108-7B as I need 800gms thrust,have an arrangement of 2,so total thrust is around 1.6 kg,
any ideas with a compatible motor with that fan?
t-rex43 why not take two diferant esc's im new in this stuf but i know that motors send current back one to the othere if they are connected. and back to the esc that can buren it out.and if the esc's have a bec in them you should cut the in one of them. i wouldent take nano i think the blue regular turnigy batteries are better. you can use 5s 5000 mah or 6s 5000mah . if the setup of two motors wont pass 70A one battery will be enouth
Dam every sky jockey with $20.oo to spare has dicoverd my favourite motor.
I have been buying them from the beginning.
Get thee behind me in thw q u newcomers :}
this motor is 2100kv the motor u had is 3500kv u need to go to a 5cell or 6cell lipo.
I have this motor in a Dynam meteor and on 6 cell it is a bullet. but on 5 cell it is a nice sports plane speed fast but not to fast...i have only tried 4cell on test and would fly like a trainer.
so short answer get a 5 or 6 cell bat and go Fly ur bullet
Kaos .. from the Alpha Jet 70 mm listing "Motor: 2750kv Brushless Outrunner." If indeed the stock is really 3500 KV, then this L2855 is way slower - which explains the lower output at 4S. But even with a higher cell count the vibration will cause the EDF unit to self destruct even after the fan blades are balanced.
The Stock METEOR 70mm motor is 3000kv so 4cell (14.8v) is 44400 revs the this 2100kv motor i use 6cel so 2100kv x 22.2v = 45520 so it is just as fast or faster with this motor and i can fly until i get a sore neck and land and have 3.5v per cell left *}
The stock motor on 5cel was a hoot with 55000 revs fan speed then i put stock METEOR 70mm on 6 cell for 66600 revs at no time did the fan explode or self distruct the end came when the motor mount face plate melted from the extreme heat generated by the 6 cell batt the fan lost a blade but the motors magic smoke got out lol
I am using this motor in my Skyfun Jet along with a 100amp Turnigy Deluxe ESC and 2200 4s batteries and a 7x5 prop - it is the best combo possible. Even better than using the 2836-3700 motor with 2200mAh 3s batteries and a 5x5 prop. All runs cool and speeds are around 180km/h. Also no probs with prop balancing like on the 2836-3700kv motor.
Hi there , I'm running this motor in my RClander F-16 using the 4 blades fan selling here , I'm only getting 550W and 25A draw ... is that make sense ? i'm running Medium timing , what the timing should be ?
it was 880 mm wingspam and 1015 mmm long ran on 4cell 3600kv motor (very nice) and it had Thrust Vectoring i got it from Bannana H. out of stock now..I am trying to convince get HK to get some Thrust Vector Jets but it doesnt seem to be registering .. u have to see them to believe true 3d flying from an EDF. get one if u can
Well here's your specs on the CS70 10 blade fan, with inlet ring.
4S 3300 25C
Thrust (kg): 1.3
5S 4400 65C
Thrust (kg): 1.8
6S 4500 25C
Thrust (Kg): 2.4
Note these are a reading off of a meter of highest attained of each item in the 3 specs.
2.4kg on the CS10 70mm ??? Wow, that seems to be a lot ! But the 71A and 1642W seems about right for that - if comparing to lower blade count fans.
The 1.8 kg on 5S for 54A and 1067W sounds too much - when compared to average quality 70mm's. I will have to give it a try and see!! Those numbers seem exceptionally good - lowish power for very high thrust.
2,4 kg thrust on 6S is a dream to wish. What 70mm edf modell will take such a big and heavvy 745 g lipo ? And fly like a jet not a bullet?
I compaired Sun Change EDF 70 mm 10 and 12 blades with this motor . controller : 80 A lipo : nano-tech 6S 2250 mAh 65-130 C (390 g)
10 blades edf - 20,8 V - 53,2 A - 1134 W - 2,0 kg thrust
12 blades edf - 19,8 V –** 56,6 A - 1148 W - 2,1 kg thrust -
In flight with 10 blades edf and 6S the motor became very hot –** too hot for longer life, smells burnt. -
With 5S lipo (nanotech 5S 2200 mAh 65-130C) and 10 blades edf in flight the motor became quite warm but not too hot. Measured values are: 10 blades edf - 18,6 V - 44,9 A - 857 W –** 1,7 kg thrust - 12 blades edf - 18,2 V –** 51,8 A - 954 W - 1,9 kg thrust **
With 4S lipo (nano-tech 4S 2250 mAh 65-130C) measured values are: 10 blades edf - 13,7 V - 28,2 A - 403 W –** 1,06 kg thrust ** 12 blades edf - 13,3 V –** 33,0 A - 459 W - 1,2 kg thrust **For 4S better take Turnigy L2855-2800kv. All measures were made with free exhaust.
i think it depends what fan you have and what battery you have i dontthink this motor would buren out from enny reasons axept overheating so you can try it on 7s and see if it gets hot you can also drill holes in the botom of the fan so the motor could get more ventelation and it depends if its winter or summer and in what country you live its also not such an expensive motor its not a mega motor that causts 150$ and these motor start smoking bfore they actualy buren out the motor isentthe most efficiant motor and in 7s it will probebley take 1 to 1 but i promiss you this motor is hard to kill
i was flying mine with a DYS 2600kv and a 6x5 on a 1300mah 3s, it was also decent but i want it faster, plus the motor and 35amp were a little bit hot in the end, and i was only using 1/2 stick. i have a 1300mah 4s, and a 60amp esc ... so... i dont know...
2200mAh battery with a 100 amp ESC and a 7x5 prop - that is a near perfect balance. Believe me I have tried 3 other motors and this is the best - fastest, most power, and longest flight times. Win, win, win!
The weight carrying capacity is related to the power. 900W is pretty good, but not exceptional. The advantage of the relatively low Kv and associated high voltage is lower current = less losses to resistance.
Wow!!! 2200KV *900Watts!!! This is an excellent option for large Pusher Jets!! This motor should have come long, long time back! Nice addition HK... good job, and even incredible price. Would wait for actual review number.
This looks JUST like an LX Outrunner, they are claiming around 3.4pds of thrust on 6s with < 40amps... HKs EDF70 and T-50 (when they have them in stock) would be great. I tested a 2100kv inrunner with T-50 fan and got 54oz thrust\40amps\6s. This thing will scoot around a number of jets on 6s 1800mah 40c with good flying time.
You're prolly talking about the Change Sun fan with the intake ring...it's load is less than the aforementioned fans. I don't know what the amp draw and oz of thrust would be on 6s but I know it'll be lower.
This motor with the CS 70 mm, 10 blade fan on 6S4500 25 C pack. Here's the max meter specs for it.
5.25 POUNDS of thrust!
Not to shabby for a fan and motor for $26.00
I'm dropping a pair of these in my Eflite Airliner on 4S.
The pair combined pull 70 amps, just over 1000 watts, and 5.75 pounds of thrust.
Motors aren't even getting warm at that.
I was also looking at the same setup for my A330 2 x 2 meters weighing4.5 Kgs. Do you think it would be a good choice using 4S battery/Fan? What would be a good and reliable ESC to use accordingly? Thanks.
10 Pounds! Wow must be a big one.
Go with the CS fan, and the Turnigy XK 2850-B motor, 2800 kv on 4S.
63 amps/approx 1000 watts/1.6 kg thrust, per motor.
Put you at roughly 200 watts per pound.
As for an esc, I'd go with an 80 amp to be on the safe side. Maybe something like the Turnigy Plush. I've had no problems at all with them.
According to manufacturer 1 Kg trust (40% of its weight) is all what is needed to fly this airplane with no issues, the setup they are offering is an HET combination of fan,motor and ESC which produce 1 Kg thrust per motor. Consequently no need to go overkill as intention is to achieve scale flying only, this is why i thought that 1.2 kg thrust would be more than adequate for this application, therefore, appreciate your input according to your valuable experience in this respect. Thanks, Regards
Ok then if that's all you need, yep go with it.
If you find it lacking, and your esc will handle it, (the Turnigy plush will), you can always up the cell count with no other changes to get you more.
Honestly that's how mine is set up, for 4S, but then my liner weighs 4 pounds, but if I want more I can just up the cell count.
5S will pull around 55 amps, close to 1100 watts, and 1.8kgs thrust. Times two.
6S, 72 amps, 1650 watts, and 2.4kgs thrust per fan.
Motor L 2855-2100kv in 70 mm EDF
6S 2250 mAh 65-130C ** measured values: 23,2V –* 27,2A –* 637W**
5S 2200 mAh 65-130C ** measured values: 20,1V –* 20,5A –* 417W**
6S 2250 mAh 65-130C ** measured values: 20,8 V - 53,2 A - 1134 W - 2,0 kg thrust**
5S 2200 mAh 65-130C** measured values: 18,6 V - 44,9 A - 857 W –* 1,7 kg thrust**
6S 2250 mAh 65-130C ** measured values: 19,8 V –* 56,6 A - 1148 W - 2,1 kg thrust**
5S 2200 mAh 65-130C ** measured values: 18,2 V –* 51,8 A - 954 W - 1,9 kg thrust**
I have tested this motor in diferent volts and every time got the same ratio of watts per kg of thrust that was 1.35 w/kg i never saw amotor with so low efficientcy plus it also heated up
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I maneged to make the motor work without it heating up by driling 6 holes 5mm diamiter in the base of the fan and took down heating of the motor dramaticly and i maneged to balance the fan with aball bearing i took from atail of a t-rex after all - motor is ok as for comparence to its price
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I don't really understand but tried with 7mm edf 6 blades fan 55amps esc and 6s 2500 mah 25c lipo and i barely got 400 watts at full throttle according to my data logger, am i doing something wrong, where are the promised 900 watts?????????????
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Second review i regret to have under rated this motor, i made all sort of tests and it all depends on the battery, you have to get a high mah high discharge rate to feed this little screamer, tested with 6s 2600mah got barely 500 watts, went to nanotech 6s 3000 and got 800 watts and finally tested 6s2p 4500 nanos and got more than 1000 WATTS!!!!!!, i was disapointed at the begining but now it turned my slow 70mm alpha in a real jet, RECOMMENDED !!!!!!!!!!!!!!!
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Hi, have to say, very happy with these motors. I am replacing the LX2100's in both the mig29 and the F22. Using the eagletree i had a 5000 6S pack and these were pulling 54amps at 35,000rpm with a whopping 1200watts. This was on a 10blade 70mm using the standard LX housing, Great motor. Will just have to see the reliability.