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Old Dec 06, 2012, 08:14 PM
Barefoot Birkinsomething
rcbirk21's Avatar
United States, CA, Hayward
Joined Aug 2004
9,468 Posts
Quote:
Originally Posted by Neil_SC View Post
I'm trying to decide if I want to go 6S or 8S. I currently do an even mix of 3D and precision. I will be buying batteries either way but I already have a CC ICE 100. What are the pros and cons between 6S and 8S? 6S draws more current since less of the power is coming from voltage, right? Isn't that why most 6S setup seem to involve 5000-5300mah batteries and 8S involves 4000-4400mah?

I compared the weights of the motor and batteries for 6S and 8S Hacker setups and got the weights below. So the 8S setup will be about 10 oz heavier. Does anyone know about how much thrust each of these setups make, assuming an 18" prop on 8S and 20" on 6S? The larger prop allowed on the 6S setup probably helps with 3D, right? I do like a very floaty 3D plane but I like to have enough thrust to comfortably hover at half throttle and have good vertical punch-out from 3D. Thanks.

Hacker A60-6XS (16.9 oz) + 5000mah 6S 30C (28.6 oz) = 45.5 oz total
Hacker A60-5S (21 oz) + 4400mah 8S 35C (34 oz) = 55 oz total
there are a couple issues ill raise, but of course this is subject to personal opinion. I think that much of a difference in weight will be noticable, but most people are using 8s4000 (i believe) which is closer in weight to the 6s5000, and it varies from brand to brand. I also think on the edge an 18" prop is not enough and you will not be that happy with it. a 20" prop is not too much at all torque wise and i think you will be happier with how it flies on a 20" prop
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Old Dec 06, 2012, 08:21 PM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,244 Posts
Quote:
Originally Posted by Neil_SC View Post
I'm trying to decide if I want to go 6S or 8S. I currently do an even mix of 3D and precision. I will be buying batteries either way but I already have a CC ICE 100. What are the pros and cons between 6S and 8S? 6S draws more current since less of the power is coming from voltage, right? Isn't that why most 6S setup seem to involve 5000-5300mah batteries and 8S involves 4000-4400mah?

I compared the weights of the motor and batteries for 6S and 8S Hacker setups and got the weights below. So the 8S setup will be about 10 oz heavier. Does anyone know about how much thrust each of these setups make, assuming an 18" prop on 8S and 20" on 6S? The larger prop allowed on the 6S setup probably helps with 3D, right? I do like a very floaty 3D plane but I like to have enough thrust to comfortably hover at half throttle and have good vertical punch-out from 3D. Thanks.

Hacker A60-6XS (16.9 oz) + 5000mah 6S 30C (28.6 oz) = 45.5 oz total
Hacker A60-5S (21 oz) + 4400mah 8S 35C (34 oz) = 55 oz total
I went with the A60-5S, and two 4S 45C 4400mAH packs all the way to the firewall, and still had to add 3oz. of lead under the front of the motor box to get my plane to balance VERY slightly ahead of neutral. If I had it to do over, I would go with two 5000mAH packs. My plane is still plenty "floaty"...

SteveT
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Old Dec 06, 2012, 08:45 PM
Old Dog learning new tricks~~
bradhoke08's Avatar
United States, PA, East Stroudsburg
Joined Jan 2011
351 Posts
I'm using the motrofly 4325-310 with 2 4cell 5000mah packs with a casle ice 100 on the side of the motor box and I have plenty of room to adjust for cg by moving battery either way and I think it's floaty
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Old Dec 06, 2012, 09:41 PM
lazy 3D specialist
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United States, OH, Canal Winchester
Joined May 2007
2,060 Posts
Here is video of two 6s 74" setups ,red/white has Hacker A50 12l with 20x10 prop ,gray racing with Hacker A60-6XS 21x10 prop ,both with 6s5300mah packs
3DHS 74 EDGE (8 min 34 sec)
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Old Dec 07, 2012, 12:10 AM
Registered User
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Canada, BC, Vancouver
Joined Nov 2008
119 Posts
My new 3DHS Edge 74 is in the house and ready for the build phase. I picked it up from Ship Happens in WA this afternoon. Incredible quality, every part is perfect. I'm very impressed with the workmanship. The fiber fusion makes the fuselage feather light.

This is the final setup I'm going with,
Hacker A60 6SX motor
Castle 100 amp ESC
Castle Pro Bec
Hitec 7985mg all around
Gens Ace 5300 6S 30C
Xoar 21X10 prop

Let the building begin. Well maybe after I watch Boardwalk Empire.
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Old Dec 07, 2012, 12:28 AM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,244 Posts
I can guaranty you you are going to love this plane!!

SteveT
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Old Dec 07, 2012, 01:00 AM
Registered User
rogersrick123's Avatar
Canada, BC, Vancouver
Joined Nov 2008
119 Posts
Hey SteveT
Thanks for all your advice, it made choosing my setup a lot easier. My buddy and I both bought the same plane, and setup. I can't wait to fly her.
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Old Dec 07, 2012, 01:09 AM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,244 Posts
Got it done yet???? It's a fast build!! Looking forward to your maiden report....

SteveT
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Old Dec 07, 2012, 01:45 PM
OOPS
Manta1's Avatar
USA, GA, Cochran
Joined Jun 2008
20,173 Posts
Quote:
Originally Posted by rogersrick123 View Post
My new 3DHS Edge 74 is in the house and ready for the build phase. I picked it up from Ship Happens in WA this afternoon. Incredible quality, every part is perfect. I'm very impressed with the workmanship. The fiber fusion makes the fuselage feather light.

This is the final setup I'm going with,
Hacker A60 6SX motor
Castle 100 amp ESC
Castle Pro Bec
Hitec 7985mg all around
Gens Ace 5300 6S 30C
Xoar 21X10 prop

Let the building begin. Well maybe after I watch Boardwalk Empire.
After what??!! Man u better get busy lol!
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Old Dec 07, 2012, 01:48 PM
Registered User
robj's Avatar
United States, LA, Moss Bluff
Joined Nov 2008
8,166 Posts
Quote:
Originally Posted by Neil_SC View Post
I'm trying to decide if I want to go 6S or 8S. I currently do an even mix of 3D and precision. I will be buying batteries either way but I already have a CC ICE 100. What are the pros and cons between 6S and 8S? 6S draws more current since less of the power is coming from voltage, right? Isn't that why most 6S setup seem to involve 5000-5300mah batteries and 8S involves 4000-4400mah?

I compared the weights of the motor and batteries for 6S and 8S Hacker setups and got the weights below. So the 8S setup will be about 10 oz heavier. Does anyone know about how much thrust each of these setups make, assuming an 18" prop on 8S and 20" on 6S? The larger prop allowed on the 6S setup probably helps with 3D, right? I do like a very floaty 3D plane but I like to have enough thrust to comfortably hover at half throttle and have good vertical punch-out from 3D. Thanks.

Hacker A60-6XS (16.9 oz) + 5000mah 6S 30C (28.6 oz) = 45.5 oz total
Hacker A60-5S (21 oz) + 4400mah 8S 35C (34 oz) = 55 oz total
I run a pair of 3800 and 4000. IMO you don't want to get to light up front, I like mine more nose heavy than neutral. I run a 20oz 5320 330 with a 19x8. Batterys all the way up.

6 minutes of fun with 25-30 left.
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Old Dec 07, 2012, 03:05 PM
Yard Dart
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United States, TN, Woodbury
Joined Aug 2012
146 Posts
Steve T

Did you do the vent holes in the first former? Anything else I need to do for venting except removing the covering on the bottom of the fuse?
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Old Dec 07, 2012, 03:32 PM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,244 Posts
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Originally Posted by Letzrock View Post
Steve T

Did you do the vent holes in the first former? Anything else I need to do for venting except removing the covering on the bottom of the fuse?
Yes, but as much to have a place to run power leads etc. as to make vents. I cut the covering on the bottom and also installed the front louvered "gas" vent on the bottom..

SteveT
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Old Dec 07, 2012, 03:39 PM
Registered User
Sweden, ┼kersberga
Joined Aug 2012
30 Posts
Quote:
Originally Posted by Neil_SC View Post
I'm trying to decide if I want to go 6S or 8S. I currently do an even mix of 3D and precision. I will be buying batteries either way but I already have a CC ICE 100. What are the pros and cons between 6S and 8S? 6S draws more current since less of the power is coming from voltage, right? Isn't that why most 6S setup seem to involve 5000-5300mah batteries and 8S involves 4000-4400mah?

I compared the weights of the motor and batteries for 6S and 8S Hacker setups and got the weights below. So the 8S setup will be about 10 oz heavier. Does anyone know about how much thrust each of these setups make, assuming an 18" prop on 8S and 20" on 6S? The larger prop allowed on the 6S setup probably helps with 3D, right? I do like a very floaty 3D plane but I like to have enough thrust to comfortably hover at half throttle and have good vertical punch-out from 3D. Thanks.

Hacker A60-6XS (16.9 oz) + 5000mah 6S 30C (28.6 oz) = 45.5 oz total
Hacker A60-5S (21 oz) + 4400mah 8S 35C (34 oz) = 55 oz total
In this size 6 or 8s almost makes no difference in performance or weight...
6s 5000mah is more egual to 8s 3700mah.
Motor weight being the same the one with the higher kv for 6s tolerates more current.
One disadvantages for 6s might be the need for thicker esc wires and connectors.
I prefer 6s for the one pack simplicity.
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Last edited by Flyer95; Dec 08, 2012 at 02:15 AM. Reason: spelling :)
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Old Dec 07, 2012, 03:43 PM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
27,244 Posts
Quote:
Originally Posted by Flyer95 View Post
In this size 6 or 8s almost makes no difference in perfornace or weight...
6s 5000mah is more egual to 8s 3700mah.
Motor weight being the same the one with the higher kv for 6s tolerates more current.
One disadvantages for 6s might be the need for thicker esc wires and connectors.
I prefer 6s for the one pack simplicity.
8S still easy, all you need is a "Y" connector. There is also the advantage of lower current draw.

SteveT
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Old Dec 07, 2012, 08:27 PM
Team 3DHS
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USA, OH, Macedonia
Joined Jul 2009
3,259 Posts
Two quick questions:

Has anyone tried a DLE 35RA on the 74?

Does Chief Aircraft service the Mintors or do they send them to Top Dawg?

Thanks in advance!
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