Nightswatch
wondering is 5.5 mm bullets normal for motor connectors on the esc ??? And do i have to set the bec to 5 - 6 .. 7.5 - 8 , 8.4 V or will it automatically set as per current needs
If you think you got your flying under control, Your not going fast enough
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Flybyknight22
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wondering is 5.5 mm bullets normal for motor connectors on the esc ??? And do i have to set the bec to 5 - 6 .. 7.5 - 8 , 8.4 V or will it automatically set as per current needs

Nightswatch,

Can you give us a little more info, like;

What is the ESC manufacturer?
What is the ESC amp size?
What size motor are you using this ESC on as the bullet size of the ESC needs to match the connector size for the motor etc.
Did you check the manual for the ESC?
If you don't have the ESC manual have you tried to download it for the info you need?
And on the 8th day God said: "Go NAVY",.. and it was good! Pray like everything depends on God. Prepare like everything depends on you.
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Nightswatch
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Nightswatch,

Can you give us a little more info, like;

What is the ESC manufacturer?
What is the ESC amp size?
What size motor are you using this ESC on as the bullet size of the ESC needs to match the connector size for the motor etc.
Did you check the manual for the ESC?
If you don't have the ESC manual have you tried to download it for the info you need?


Thanks there the ZTW Gecko 155 amp with 8a SBEC on the ESC there 5.5 bullies and on the 105 mm EDF there 5.0
If you think you got your flying under control, Your not going fast enough
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Airforce101
How many servos and how much A do they draw? That is the answer to your BEC question. You do the math...
My avatar is what I look like after a "landing"...
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Nightswatch
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How many servos and how much A do they draw? That is the answer to your BEC question. You do the math...

11 servos
If you think you got your flying under control, Your not going fast enough
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Airforce101
That's only 50% of the answer to the question...
My avatar is what I look like after a "landing"...
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Flybyknight22
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Thanks there the ZTW Gecko 155 amp with 8a SBEC on the ESC there 5.5 bullies and on the 105 mm EDF there 5.0

Nightswatch,

I hope this doesn't sound too simple or obvious but I assume nothing.

"Generally" speaking the connectors on the motor/EDF and ESC obviously need to fit each other but more important than that is, they need to be "electrically" matched for lack of a better term. In other words if the EDF can draw significantly more current at WOT than the ESC can handle, you will most likely burn up the ESC and under some circumstances possibly the motor as well.

When purchasing motor and ESC, these plus other factors must be taken into consideration.
When I purchase a motor or ESC that I have no experience with I always test with current/watt and thrust meter before using just to be safe and to avoid problems in flight.

Regardless of what the manufacturer specs for both are claimed to be, I like to verify with measurement. Some say "if there's no video it didn't happen", I say if you don't measure, you don't know.

"If" the connectors between the motor and ESC don't fit you will have to change one or the other, preferably in this case "maybe" those on the EDF but it depends on the specs of both.

Check the specs on the EDF and ESC, if the ESC current handling capability is rated higher, then you "should" be able to safely change EDF connectors to match the ESC.

If the EDF can draw more current than the ESC is rated for, changing connectors is not an option. In this case you will need to change out the ESC for one that can handle the EDF.

Air Force 101 answered the other question.

Hope that helps.

Take care and good luck.
FBK22
And on the 8th day God said: "Go NAVY",.. and it was good! Pray like everything depends on God. Prepare like everything depends on you.
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Flybyknight22
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11 servos

Nightswatch,

Check the specs of your servos.
And on the 8th day God said: "Go NAVY",.. and it was good! Pray like everything depends on God. Prepare like everything depends on you.
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Nightswatch
thanks will do so i need to add up all the voltage per servo that add it all up as one
If you think you got your flying under control, Your not going fast enough
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Flybyknight22
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thanks will do so i need to add up all the voltage per servo that add it all up as one


https://www.rcpowers.com/community/threads/esc-questions.22018/#post-296183
And on the 8th day God said: "Go NAVY",.. and it was good! Pray like everything depends on God. Prepare like everything depends on you.
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Nightswatch

thanks i realize that on full power and why i went bigger ESC then 130 amp ESC needed for motor i went 155 amp ESC that can handle 200 amp Bursts @ WOT t tryin to figure out if i need a seperate bec and power system to run servo's and landing gear

this set up is for 2 105 mm EDF with 2 155 amp ESC's For the Balsa Su build
If you think you got your flying under control, Your not going fast enough
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Nightswatch
this kit should be in any day now

http://www.scmodels.com.au/rc-custom-jets/sc-rcj-su33/index.html just making sure i got and have the right stuff
If you think you got your flying under control, Your not going fast enough
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Airforce101
On a model with 11 (!) servos and 2 edf's I woukd not rely on the builtin bec, but use a dedicated bec of the proper rating. Imagine frying your esc, do you want your servos still to work to glide it down "gently" ...?
My avatar is what I look like after a "landing"...
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Airforce101
On a sidenote:

I know we all learn from experience, and without experience we don't learn. So it's great you are pushing yourself to do "more"/"bigger"/"faster" and you will definitely learn from that, no doubt. It's just that, given the nature of your questions, I wonder if you haven't bitten off more than you can chew. Do you fully appreciate the challenges that come with building and flying a twin 100+ mm edf, balsa plane with retracts and a total of 11 servos?

You could be setting yourself up for an expensive and frustrating lesson here, and that would be dissapointing.

If you are confident and aware of what you're doing, then by all means go for it!
My avatar is what I look like after a "landing"...
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Nightswatch
Quote:
On a sidenote:

I know we all learn from experience, and without experience we don't learn. So it's great you are pushing yourself to do "more"/"bigger"/"faster" and you will definitely learn from that, no doubt. It's just that, given the nature of your questions, I wonder if you haven't bitten off more than you can chew. Do you fully appreciate the challenges that come with building and flying a twin 100+ mm edf, balsa plane with retracts and a total of 11 servos?

You could be setting yourself up for an expensive and frustrating lesson here, and that would be dissapointing.
If you are confident and aware of what you're doing, then by all means go for it!


I am 100 percent confident as i been building planes since as long as i can remember , off and on. 52 here There is not a plan out there that i could not decipher and make it into a real model .
But when i comes to electronics that is were i am weak and with new technology coming in almost every day in the RC world .. I'll admit when it comes to eletronics i usually send off plane to a skilled person that does it either from club or a buddy at electronics place
It also does not take long to add lots of servo's when you have landing gear servo's , door servo's, air brakes rudder 2 elevators 2 ailerons before you know it your in the 11 servo range
If you think you got your flying under control, Your not going fast enough
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