Brown out with Koby 40 ESC on the bench

[esmoglo]

Seems like it would be fine anyone try one?

[ScotY]

Originally Posted by esmoglo

Anyone try this BEC?

http://www.experiencerc.com/store/gr...0-p-11198.html

This one is $34.99 VS the WR BEC at $88.00

This is the WR Bec

http://www.experiencerc.com/store/we...k-p-11220.html

Weird that the Gryphon is a switching BEC yet it's specs mimic a linear BEC.

[ScotY]

Man, I have never been called cheap in my lifetime but I am still having a hard time seeing spending $90 on a monstrous BEC for such a small helicopter!

[kachur779]

when i sold the 6hv i kept the super bec things a monster i might use it ,or drive down the road to western robotics shop and see if i can do a trade in on a mini super

[frito169]

the gryphon bec's are excellent so far. I am using them on my TDR and Whiplash each at 14s. if I have any issues with my yge60 I will try this small one for $35

[GimpyGolden]

Originally Posted by John Cook

Are you guys sure you are not getting static hits? 2 belts, dry air, spektrum?????? Static????

I'm sure as well, zero Checksum Error's in VB Log, only low Rx Voltage.

[Kendo]

Originally Posted by Bob O

Now that static/belts have been brought up, I haven't seen anyone mention grounding the boom at all in any threads or pics.

Would also like to know more about it.

Also, koby 55, ds92a+, ds95i, hc3sx, 1 spektrum sat. Gave the sticks a stir on the bench and no brown out.

[esmoglo]

Originally Posted by Kendo

Would also like to know more about it.

Also, koby 55, ds92a+, ds95i, hc3sx, 1 spektrum sat. Gave the sticks a stir on the bench and no brown out.

Yea I did the same test and all was good then I put on a second Sat and I went to brown town.....

[Kendo]

Originally Posted by esmoglo

Yea I did the same test and all was good then I put on a second Sat and I went to brown town.....

So one sat it is then.

Still a bit sketchy being so close to brown out. Would setting bec voltage to 6v give more margin? In a way I'm hoping no, considering the price on the progdisk.

[kalleh]

Originally Posted by Kendo

So one sat it is then.

Still a bit sketchy being so close to brown out. Would setting bec voltage to 6v give more margin? In a way I'm hoping no, considering the price on the progdisk.

I ordered a progdisk, I'll report back with results when I get it next week.

[GimpyGolden]

Originally Posted by Kendo

So one sat it is then.

Still a bit sketchy being so close to brown out. Would setting bec voltage to 6v give more margin? In a way I'm hoping no, considering the price on the progdisk.

No it will likely be worse.
Increasing speed of servo's without decreasing load will result in higher current draw.
If you could increase Voltage then regear servos to run at original speed you'd have a decrease in draw.

Same principle as going from 6S to 12S but on a much less extreme scale.

[Lompma]

I have about 10 flights now with Spek Sats Koby 55 and Mks95's and 95i with no problems. Using Vbar. Might be an issue with the 95a's. I could not create brown out on the bench with multiple attempts. Mind u this is a mini p though don't have a 360 yet.

[esmoglo]

Originally Posted by kalleh

I ordered a progdisk, I'll report back with results when I get it next week.

Keep us posted I may just get the BEC Prog disk is $129 VS the WR BEC at $88.00 Again I should have gone with the YGE 40 and WR Bec combo from the begining I would have saved quite a few $$$ in the process. Jive/Koby are highly over priced and over rated.

YEG 40 would have cost $119 plus $88 for the BEC for a total of $207

Koby 55 was $189 plus a BEC $88 for a grand total of $277 Add in a Prog disk at $129 and it balloons to $406 yea that's nuts for a 450 size heli.

[ScotY]

Originally Posted by esmoglo

Keep us posted I may just get the BEC Prog disk is $129 VS the WR BEC at $88.00 Again I should have gone with the YGE 40 and WR Bec combo from the begining I would have saved quite a few $$$ in the process. Jive/Koby are highly over priced and over rated.

YEG 40 would have cost $119 plus $88 for the BEC for a total of $207

Koby 55 was $189 plus a BEC $88 for a grand total of $277 Add in a Prog disk at $129 and it balloons to $406 yea that's nuts for a 450 size heli.

+100!!! 100 dollars, that is! I am in the same boat as you and not thrilled about it either.

[Dave Ketelhut]

Does anyone have any issues with running the castle 10 amp bec? its only 25$ and i know a lot of people that have used them with no more problems then any other BEC.
for a long time running 6s 450s this was the choice of the guys that i knew ran hv setups

[kalleh]

The key here seems to be the unfortunate combination of spectrum sats being sensitive to voltage drop, the DS92A+ servos setting new standards in current draw, and possibly how the HC3-SX distributes power to the sats (can anyone create the brown out on another system?).

[Stevemech]

On my other 450's that use the Mks 92a's I use the 10mm hole or 12mm hole, on the Warp I'm using the 15 mm hole and there's not alot if torque there so with the Warp doing a pitch pump where all servos are suddenly near stall I can see that : either we need stronger servos or some other method to lower amps?Or a bigger bec as servo load is probably more than your average 450.The Kst215 7v .05/3.7kg torque would be interesting.
Steve

[radu7]

Originally Posted by Dave Ketelhut

Does anyone have any issues with running the castle 10 amp bec? its only 25$ and i know a lot of people that have used them with no more problems then any other BEC.
for a long time running 6s 450s this was the choice of the guys that i knew ran hv setups

That is my plan to go with the CC 10amp BEC or perhaps the one from ZTW:

http://www.quantumhobby.com/ZTW-6A-S.../ztwubec6a.htm

[crf69]

when i do mine im just gonna get a yge90lv.

super small and a killer bec. 6amp continuous 12 amp peak.

Sent from my phone using Tapatalk2...otherwise i would of sent it from my home PC.

[Jeff_Barrett]

Originally Posted by kalleh

The key here seems to be the unfortunate combination of spectrum sats being sensitive to voltage drop, the DS92A+ servos setting new standards in current draw, and possibly how the HC3-SX distributes power to the sats (can anyone create the brown out on another system?).

Yes... the Skookum SK-720 with a single Spektrum Sat will give low voltage warnings.