rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 313 ONLINE 28 EVENTS SEARCH REGISTER  START HERE
 
1 page345 viewsPOST REPLY
Real Raptors . Mikado Modellhubschrauber . GrandRC

.
.
e-Mikado Logo 400 500 600 > Logo 600 batteries
 
 
KDFI
Senior Heliman
Location: Lodi, Ca- USA

Anyone try 8s in a Logo 600? Or is sticking to 10s the right thing to do? Is the Logo lighter?

I only ask because I have seen some vids on Trex 600's on 8s and they were pretty impressive (power wise). I have also seen vids on 10s L600 & T600's and WOW!! I think that might be too much at my skill level.

Basically, I want a more responsive heli. I think the T600 is too heavy for 6s. it doesn't have that burst of power you see on 600 size 8s and 10s helis. You see this when just in a hover and cranking up the collective then POP the heli shoots off like a rocket!!.

So instead of up grading my trex, I thought I'd just keep it for what it is and just get an all around better heli.
But, what battery to use? I don't compete, I just go out and have a blast on Sundays. Money is an object but if I'd be happier in the long run on 10s I'd make it work.
07-15-2008 07:53 PM
 
 
Heli 770
Key Veteran
Location: Lemon Grove, Ca. USA.

KDFI
They are running a higher KV. and it,s harder on the smaller batt. packs.
07-15-2008 07:58 PM
 
 
KDFI
Senior Heliman
Location: Lodi, Ca- USA

Thanks 770,

I should of researched that.
07-15-2008 08:03 PM
 
 
Heli 770
Key Veteran
Location: Lemon Grove, Ca. USA.

KDIF
The whole thing is give and take.
07-15-2008 08:06 PM
 
 
Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

logo 600

8s would probably work well but 10s works much better ...regardless of your skill level flying a higher voltage setup usually puts less stress on the machine and batteries....higher voltage means less amps...which is a battery and esc killer...

10s is a more common setup and you're better off going with 10s for convenience as well...

even a 10s logo 600 can be made to be VERY docile...
07-15-2008 08:33 PM
 
 
kogibankole
Senior Heliman
Location: albuquerque

at higher voltages you are going to run less capacity(mah) and you are also going to draw less amps.

Quote 
higher voltage setup usually puts less stress on the machine and batteries....higher voltage means less amps...which is a battery and esc killer...
...i disagree

Here is my reason.
When you run less voltage like a 6s 5000mah you are going to draw more amps, but you have a lot of capacity to spread the amp draw out upon. Say you want to get 1000watts out of a 6s (22v pack) you will have to pull 45.45 apms this is about 9C.

Now lets say you want to pull 1000 watts out of a 10s 3000mah pack, you will have to pull 27 amps. This is about 9c also. Now can you tell me which pack is suffering more? In my opinion they are both being subjected to the same beating, but the 10s setup will run moree efficiently cuz of the lesser amount of heat generated in the wires of the motor esc etc etc. This is negligible! Really it is!

Reasoning:
6s * 5ah = 10s * 3ah

22.2v * 5ah = 37v * 3ah

power = voltage * current

they both have the same energy capacity so they will deliver the same power all things being equal. Gear ratios, blades, gear mesh, motor choice, headspeed etc etc etc will greatly affect the efficiency of your power system.

if im not blade bogging youll find me pack puffing
07-15-2008 09:09 PM
 
 
kogibankole
Senior Heliman
Location: albuquerque

Quote 
even a 10s logo 600 can be made to be VERY docile
...very true!

if im not blade bogging youll find me pack puffing
07-15-2008 09:10 PM
 
 
Heli 770
Key Veteran
Location: Lemon Grove, Ca. USA.

kogibankole
I was coming back to post on the amps thing. Glad someone did. Got caught up on a bunch of PMs.
07-15-2008 09:17 PM
 
 
Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

Amps and Voltage...

What you wrote sounds fine and dandy ...but what happens when you start pulling 100amps on a 6s system?

things get VERY hot on the esc and that's why they tend to fry so frequently...lower voltage also means higher resistance...which creates more heat as well....power delivery in a low voltage system is NO WHERE near the same as a high voltage setup...there are other factors involved other than just the discharge rate of the packs also...

I don't care what setup or C discharge you are running....like I said before..."usually" a higher voltage setup is less demanding on the esc and batteries..

It's obvious that whatever setup you choose you need to pick the batteries that best suit your needs....I myself run a 30c 4500mah pack in my 10s logo 600 vbar heli....you cannot disput the fact that a higher volatge system pulls less amps to create the same output...

BTW..Kogi you are comparing a 3000mah 10s battery to a 5000mah pack..

You know as well as I do ..NO ONE runs a 3000mah 10s setup...we all run a minimum of 3700-4500mah setups in the Logo 600's

you are also not accounting for the fact that the larger capacity packs needed for lower voltage systems also tend to be heavier...which adds more stress to the system...


If you take that into account the difference becomes much larger..
07-15-2008 09:39 PM
 
 
kogibankole
Senior Heliman
Location: albuquerque

oh yeah i know that on 10s we run even up to the 5300 evolites. I was bringing a 10s pack down to the same energy capacity as the 6s 5000 thats all.

You are right about the high amp draw to maintain power, taht why the high tesion power lines run on super high voltage to keep efficiency up by generating less heat, but those are long ass wires we are talking about In a heli your wires are much shorter. The esc and pack should be chosen appropriately so that you dont fry em! ,

if im not blade bogging youll find me pack puffing
07-15-2008 10:03 PM
 
 
laughingstill
Key Veteran
Location: Gainesville, Fl, USA

Low voltage = draw more amperage = less efficient = heat = more stress on the motor, ESC, and packs.

High voltage = draws less amps = more efficient = less heat = less stress on the motor, ESC, and packs

The 6s Trex 600 machines illustrate this point very well. How many guys run those setups on 6s and complain about killing packs? The bottom line is almost any 50 sized (600mm blades) E-heli should be a 10s machine. They will fly better and last much longer.....Ron

3DMP-E, Logo 6003D, Logo103D Carbon and Trex 450se Flyin Firefighter
07-15-2008 11:18 PM
 
 
kogibankole
Senior Heliman
Location: albuquerque

many guys that flew the 600E didnt take good care of their packs. A buddy of mine here in albuquerque has put over 150 flights on the flight power 6s 5000's

if im not blade bogging youll find me pack puffing
07-16-2008 01:49 AM
 
 
helicraze
Key Veteran
Location: Victoria - Australia

Just go the 10S setup, you'll be happier in the long run. Its not much difference in price, you stil need a motor (Z50 is good) and also a ESC (most 8S ESC do 10S as well) so the only thing is the lipos. With the new outrage packs its pretty cheap for a 10S!
07-16-2008 01:54 AM
 
 
Sig Dawg
Senior Heliman
Location: Weyburn, Sask., Canada

If you have a bunch of 6s packs from your trex600, why don't you run a 12s system?

Jason - diesel power rocks (VW TDI)
07-16-2008 05:20 AM
 
 
KDFI
Senior Heliman
Location: Lodi, Ca- USA

Whoa, I started one hell of a discussion. Glad I did, it has great info. I think I will go 10s. I have used outrage packs before and am very happy with there performance.

Thanks to all of you
07-16-2008 06:13 AM
 
 
kogibankole
Senior Heliman
Location: albuquerque

hey have you tried the true rc 10s 5000mah pack? 210 per pack. Capable of over 2.2kw continuous?

if im not blade bogging youll find me pack puffing
07-16-2008 03:15 PM
 
 
KDFI
Senior Heliman
Location: Lodi, Ca- USA

kogibankole


no bud, I haven't. Where do you get them? I take it you use them?
07-16-2008 03:22 PM
 
 
kogibankole
Senior Heliman
Location: albuquerque

you get them from truerc.net They come with a great warranty, he doesnt advertise so just a handful of people know him. I deal with Hugo. He is in Canada.

yup I have been using the cells. I am yet to use the 10s pack in a heli because im waiting for a dang TANGo motor. I have flown it in a hanger 9 10s corsair for about 15 flights. No puffing, and 2.1 kw are my peaks. I feel this will be e great pack for a logo 600 3d.

if im not blade bogging youll find me pack puffing
07-16-2008 04:03 PM
 
 
Jag72
Elite Veteran
Location: 20 minutes south of Boston Mass...

Packs...

The BEST packs I have ever tried are the Desirepowers...then the Outrages...

I have never tried true rc packs myself...but I can honestly tell you though that after flying Desires and Outrages I will never be buying any more Flightpowers or Thunderpowers again...I have never seen performance like this with any other packs I have flown...


the best thing is that the Outrages are less money than FP/TP's and most every other brand as well...

Just my .02$


Anthony
07-16-2008 04:12 PM
 
 
1 page345 viewsPOST REPLY
CanoMod . Futaba-RC . A Main Hobbies

.
.
e-Mikado Logo 400 500 600 > Logo 600 batteries
  UPDATE SCREEN   PRINT TOPIC Advertisers 

Subscribe to This Topic

Wednesday, October 8 - 11:03 am - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie