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HomeAircraftHelicopterHelicopter Main Discussion › Trex 500 - Castle 75
10-30-2013 09:55 PM  5 years agoPost 1
waqr

rrNovice

Sweden

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Just installed my Castle 75 and changed at the same time to a 15 tooth pinion. Goverend IU 1 & 2 to 2700 but when flicking to IU I don`t that high headspeed.

Previously with my old ESC I used a 14T pinion and goverened to 2650 and then got much higher headpseed. I have set the endpoints so this can`t be it. Any suggestions?

My setup:

Futaba T8J
Castle 75
Turnigy 1600kv
Turnigy 3000mAh 30-40C

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10-30-2013 10:07 PM  5 years agoPost 2
doorman

rrProfessor

Sherwood, Arkansas

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Change Info
You probably did this, but I have to ask, did you change the gear ratio info in the ESC for your pinion change??
Also, as you put in your HS's, did you read the info box so that you would know where to set your throttle curve points//

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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10-30-2013 10:20 PM  5 years agoPost 3
waqr

rrNovice

Sweden

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Yes, pinion ratio change (162/15)and TC set to 0,30,30,30,30,30 and 70,70,70,70,70 all acc to Castles instructions.

Could it have to do something with the settings like poles in the motor, PWM frequenz, timing?

I have set this to 8 poles and 12PWM and medium timing.

Does anyone know if this motor has 8 or 10 poles (Turnigy H3126, 1600kv)

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10-30-2013 11:04 PM  5 years agoPost 4
doorman

rrProfessor

Sherwood, Arkansas

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Had To Ask..
Yes the pole count and timing are both important..
If you can see inside your motor you can count the magnets and that is your pole count...it would be much easier if they would all list this info.. also on the timing try the outrunner setting and drop your pwm to defalt for now and give that a try...

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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10-31-2013 03:56 AM  5 years agoPost 5
dkshema

rrMaster

Cedar Rapids, IA

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Are you using the Governor in the Castle ESC this time? Did you go through the TX to ESC calibration sequence for throttle?

What is the current limit set at? Should be Insensitive, or Disabled.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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10-31-2013 02:57 PM  5 years agoPost 6
Richardmid1

rrProfessor

Leeds, England

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What was your old ESC? Have you tachoed these head speeds?

60% of the time, it works every time!

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