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HomeAircraftHelicopterHelicopter Main Discussion › First 700 electric build and need HELP!
12-30-2017 04:23 PM  10 months agoPost 1
youngbuck

rrApprentice

Maine

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Hey guys some of you are familiar with my last couple posts and how I fried my CC160 and BEC pro. Well I finally got it all situated and got a brand new cc 160 and brand new BEC. I'm obviously **** out of luck when it comes to the tail servo and maybe the cyclics but I haven't tested them. I just saw the magic smoke come from the BEC and tail servo so I know those are junk however I pretty much new servos and Castle surprisingly came good and sent me all new products even though they said it was wired in the correct order just the soldering was not up to there standards I guess.
Anyhow my question is - I'm thinking it would be safer to do away with the BEC completely and just run my microbeast and Rec on my 3s pulse battery. I'm just not sure if I would need a step down regulator of any sort and if I should plug it in to the futaba receiver or the microbeast? I know I'm pretty much a newbie when it comes to large electrics but please be patient with me.
I'm also running two 6s batteries and I have plugs for series and parallel but considering I'm just in the hovering stage of flight , I just want longer run times and do not care about doubling volts or power, therefore I should go with parallel?
Thanks in advance guys and when I get home from the hobby shop and breakfast, I'll be more specific as to my setup and the size of my batteries etc...

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12-30-2017 04:29 PM  10 months agoPost 2
Jamovich

rrVeteran

Bangalore, India

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Hi

Yes you will need a step down regulator as I doubt your servoes can handle 11.3 volts!

And on a 700 size machine it is probably better to keep it at 12s.

If you are thinking about Low headspeed flight (and using 6s instead) then you need an ESC that supports active freewheeling - it’s a feature that more expensive ESCs have otherwise you risk burning out your castle ESC again.

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12-30-2017 04:56 PM  10 months agoPost 3
Chuck Bole

rrElite Veteran

Tulsa Ok. U.S.A.

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Hello Youngbuck
If you are running HV servos 2s (7.2v) is the max you can go on the servos. If standard voltage servos are being used I'd suggest a
2s LiFe pack (6.6v).

If you want to try out low head speed (6s) on a 12s setup. It can be done with your castle esc.. Here is a example..

Watch at YouTube

Chuck

Team Synergy Field Representative / Scorpion / Thunder Power

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12-30-2017 04:58 PM  10 months agoPost 4
Flyin for Jesus

rrVeteran

Troy, IL. 62294

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You WILL need a regulator, no servos that I know of can handle 3s voltage and I don't think the microbeast can either.
Active freewheeling???? I don't know. I thought that was for running lower HS on a machine geared for a higher HS where you're at a low throttle position. Running on 6s would put you at a high throttle position to get enough HS to lift off.
If you want to run 6s, use a single pack. Low HS and 2 packs in parallel equals heavy with low power. Fly one pack, land, then fly the other one.
Running Low HS has its challenges. For starters, I'd just run 12s and start from there. Run a HS that the manual suggests and go from there.

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12-30-2017 05:12 PM  10 months agoPost 5
Jamovich

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Bangalore, India

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Yea sorry that’s correct. If you are ready to change to a lower gear ratio for lower headspeed then you don’t need active freewheeling...

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12-30-2017 05:34 PM  10 months agoPost 6
ICUR1-2

rrElite Veteran

Ottawa, Ontario

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I'm pretty sure you can get decent flight times on 12S It's just a matter of raising the gear ratio for more torque and then selecting the right KV motor for the headspeed you want.
Guys were 3d flying at 1800_1900 headspeed.
I would not be surprised to see at least 10 min flights with a proper set up

spending time, paying attention

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