550T Motors

550T is a slightly longer motor than the 500T and a higher performance motor. It is able to handle higher voltage than the 500's can.

Setup

Use High Timing in your ESC. On airplanes if you have prop stall (Sputter) - use Hard Start and High Timing.

Low Timing is not recommended. Most ESC manufacturers label Outrunners as Low Timing but this is for low Kv outrunners which are 90% of the outrunners available.

Heat

Heat on the 550T is very abnormal. If you feel heat such that you can not hold the bell without feeling like you will burn your fingers, either: 1) You are using the wrong propellor or pinion. 2) Your solder joints are cold and generating resistance, 3) Improper ESC setup - follow the ESC setup link.

Quick Links

550T Motor

Advice
High_Speed_Bell
Charts

Specifications

Size: 32.6mm wide

Shaft Diameter: 3.17mm in tractor and 4mm in pusher.

Mount holes: standard 16mm x 19mm.

Screws: are 3mm .5 pitch.

6 Pole Motor.

550T

Pylon racing motor.

TwinRexx motor.

Max Current: 36 Amps.

KV: 2000

Tech Info

550T Brushless Motor

Advice

The one word that describes this setup is POWER. This will bring life to any sub 3 lb fast plane or turn a slow plane into a fast plane. It will fly a higher weight plane but your performance envelope is within the first three pounds. This is your cruiser motor designed more for thrust and balanced for excellent speed - sub 100 mph. If you want high speed and high RPM which is louder than the 550T, then you should run the 550TH.

I have been spending alot of time with the 550T running bench and field tests. I initially thought I would recommend this for 4S only, but since I have started running my Stryker on 3S with 7x5, I am enjoying the climb outs more, the higher speed and it really brings that plane alive. I also have one on the FunJet and it is a bullet on 3S, I intend to go to 4S. The 6x4 prop seems to be ideal on this on 4S. I actually ran this all last summer on 5S without a burn out, but I can't recommend that until I prove we won't have burn outs on that setup. If you want to try an experiment - please let us run it for you. We can't warranty experiments. Stick within our recommendations. We have a large number of high pitch props being offered that will kick your plane speed higher. I experiment to dial in the thrust I like, then use the excess for speed and keep in mind the amp draw. If Thrust is to high (this is tough to "feel") - like you have crazy climb outs, drop the diameter of the prop. If you want higher speed - increase the pitch of the prop - within the limits we setup. If you want longer flight time, drop either diameter or pitch and you will reduce the max amp draw. So that said - If we post 7x5 is max, please do not go with 7x7 since higher pitch = higher speed. It also will consume higher amps and could lead to a burn out. The charts will tell you what we recommend.

High Speed Bell

Do not exceed 36 amps. I like the 30 amp setup on 4S, since props start to deform at very high RPM, but on a gas prop you should measure the heat of the motor with a temp gun while performing a static measurement.

This motor has the HIGH SPEED bell - differing it from our 500T/500TH setup. It is wound specifically for 2000 Kv, and a TORQUE bell will drop the speed. Testing on this will be posted.

Most Ludicrous Jet Setup

I have guys reporting great results on 4S with a 4.2x4 prop. One guy running A123's on 5S. I DO NOT recommend 5S except the A123's do not hold the same voltage as the LiPo's so 5S is reported as a strong 4S setup.

The 500TH is balls to the wall speed. If you are into fast flybys then this is it. But if you are more of an acrobatic flyer - the 500T or 450T will better suit you. 500T enables more climb authority at a slightly lower speed.

Charts

APC 6x4 e Prop

Voltage at ESC	Thrust (g)	Thrust (oz)	RPM	Amps	Watts	Thrust (g/w)	Pitch speed (MPH)	Comments


11.00	879	31	19000	20	220	4	72	Best 4S setup ! TUNE for 27 amps (2nd line). 6x4e prop will loose shape at 25,000 RPM static testing. Increasing to full throttle (3rd line) shows lower RPM and hgher amps.
14.75	1134	40	24500	27	398	2.8	92.8
14.75	1247	44	22500	34	502	2.5	85.2

APC 7x5 e Prop

Voltage at ESC	Thrust (g)	Thrust (oz)	RPM	Amps	Watts	Thrust (g/w)	Pitch speed (MPH)	Comments
9.50	1134	40	21600	34	323	3.5	102.3	Volts dropped to much on 3S and to high an amps for this to be a good prop - heat results. 2nd line test performed not at full throttle to dial in 27 amps. This seems to reach the sweet point in this prop with no deforming and full power from prop. Possibly in the air it would unload and full throttle would not draw significantly more amps as shown on first line.
10.90	1021	36	21300	27	294	3.5	100.9

APC 7x5 Sport Prop

Voltage at ESC	Thrust (g)	Thrust (oz)	RPM	Amps	Watts	Thrust (g/w)	Pitch speed (MPH)	Comments


11.00	851	30	23100	24	264	3.2	109.4	First line is not full throttle - tuned to what I consider best performance setting - static. Second line is full throttle. This is a nice low amp high speed setup. The prop is stronger so doesn't distort at full throttle so amps stay below max, nice speed.
11.00	1049	37	24800	30	330	3.2	117.4

APC 8x4 e Prop

This setup was, in my opinion, not good. The thrust hit 42 oz's - only slightly higher than the 7x5, and the volts dropped significantly. Amps hit 35 amps.

More props will be posted shortly. Various higher pitch props will be posted for sale as well.