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Post by harriermech on Jul 22, 2010 17:07:51 GMT 1
So I know this question has been asked a hundred times, but here it is again. What is a good route to upgrading to brushless? My stock SC LP died (at least the garbage esc/reciever...again). Got a new one and all the surface controls worked great. When I put some throttle on it, the prop started to turn, then everything went dead again!!! I don't know why and I don't want to buy this garbage again. The battery is good and so is the motor. So,...what is an easy and semi inexpensive route to an upgrade? I have a DX6I with an extra AR6200 receiver. What is a good brushless motor, esc, servos and prop for the SC? Maybe a good combo pack or something? Obviously I'm new and really appreciate any advice.
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Post by floridarcflyer on Jul 27, 2010 15:11:55 GMT 1
I also have a question regarding this - What is a good brushless motor which would work good with my Super Cub LP, a 25A ESC and a 3 cell lipo?
Thanks in advance!
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belem
Squadron leader
Posts: 210
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Post by belem on Jul 27, 2010 18:14:58 GMT 1
If you want to get it up cheaply just buy a brushed ESC and some servos (unless the LP servos are 3 wire, then don't replace them.)
Use your AR6200, your new esc and the stock motor. I've been flying mine thise way for a year. Added some ailerons for fun. Could do flaps too if you want. That way you don't have to worry about a new motor, new esc, and sorting out the new motor mount.
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Post by higgsbosonman on Aug 11, 2010 19:13:13 GMT 1
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Post by flydiver on Aug 11, 2010 19:50:49 GMT 1
Don't buy E-flite: expensive, old inappropriate brushed ESC. www.e-fliterc.com/ProdInfo/Files/efla105-manual.pdfI'm going to say it again, and again, and again - There is almost no brushed speed control that is reasonably lipo friendly for LVC. MOST are DESIGNED for NiXX batteries so have a bad LVC for lipo. This includes some so-called high end ESC and this included most brands. Most also only have a 1A BEC. (read the specs). If you upgrade but keep the motor, get one of these 1A BEC units, buy Spectrum, put in 4 HXT 9gm servos with your aileron mod, you get to learn about Spectrum Brown OUT! The path to upgrading a Cub is not necessarily simple. |
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Post by john66 on Aug 11, 2010 20:48:39 GMT 1
I'm going to say it again, and again, and again - There is almost no brushed speed control that is reasonably lipo friendly for LVC. MOST are DESIGNED for NiXX batteries so have a bad LVC for lipo. This includes some so-called high end ESC and this included most brands. Most also only have a 1A BEC. (read the specs). If you upgrade but keep the motor, get one of these 1A BEC units, buy Spectrum, put in 4 HXT 9gm servos with your aileron mod, you get to learn about Spectrum Brown OUT! The path to upgrading a Cub is not necessarily simple. Hmmm I hadnt considered nor seen a post before regarding brushed ESCs not being lipo friendly, maybe why I got through two of the Turnigy ones in aprox 2 min each! Very smelly!  |
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Post by flydiver on Aug 12, 2010 0:27:39 GMT 1
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Post by leisureshoot on Aug 12, 2010 7:43:58 GMT 1
Regarding LiPo and ESC, Can you comment on the Electrifly C12? I had this in my Super Cub for a few weeks.
Until a recent crash where I didn't get the throttle turned all the way down. When I reached the aircraft, it was smoking a bit, and the ESC was melted/burned. FWIW, it is only a 12amp ESC, and I never had any issues with it.
I ordered an E-Flite 20A brushed ESC this time. I hope I didn't make a mistake.
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Post by supercubnz on Aug 15, 2010 6:36:54 GMT 1
I have read about brushed ESCs not being lip friendly before but flydiver's message above seems very strong. I use a 20 amp Turnigy esc with the stock motor and a lip. Have been flying for about month and check the battery after each flight with a battery meter. Normally with a 1300 mAh battery after 15 minutes or so flying at half throttle, meter indicates about 11.3 volts.
Flydiver - could you please elaborate where will the 1A Bec will come in to play and the plane will fall out of the sky?
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Post by flydiver on Aug 15, 2010 7:26:50 GMT 1
The plane will have problems when you exceed (among other things) the limitations of the BEC (1A). The BEC needs to feed the RX and servos. It'll be fine with 3S and 2 servos. It'll be maxed out at 3S and 3 servos. It has a high possibility of failure at 3S and 4 servos. If you use Spectrum that poses the additional possibility of Brown Out. More complete explanation here: supercubclub.proboards.com/index.cgi?board=rg&action=display&thread=1858Read some of the included links. I don't put them there for my education. LVC is a completely different aspect of the ESC and the Turnigy seems to be one of the better of the brushed ESC. |
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Post by jimmyjim on Aug 16, 2010 22:46:39 GMT 1
I put the hardware from the parkzone p-51 BL into my supercub and it is so fast but more important I found that the amount of power that comes with the BRUSHLESS motor can really get you out of trouble when you need it.
Motor Size: 480-size 960Kv brushless outrunner
Prop Size: 9 x 6
Speed Control : 18A brushless ESC
Recommended Battery: 11.1V 3S 1300mAh Li-Po (included)
my 9 year old son flies the crap out of this plane and it still has the same flight characteristics.
GO BRUSHLESS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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