Notices
Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

11.1V OR 14.8V?

Old 11-04-2008, 10:11 AM
  #1  
jstanton
Thread Starter
My Feedback: (14)
 
jstanton's Avatar
 
Join Date: Aug 2002
Location: Millington, TN
Posts: 3,252
Received 26 Likes on 26 Posts
Default 11.1V OR 14.8V?

I have a Turnigy SK35-36 motor with a APC 11.8 prop. I am using a 2200mah 11.1 v battery. I am getting 360watts of power when fully charged. I have this setup on a Modeltech ME-109 that weigh's 2lbs 10oz. The plane flies very scale like and has enough power for aerobatics. The Motor is rated to produce 410watts of power. If I go to a 14.8 Battery will that increase my wattage? The motor is rated to 3 to 4 cell lipo's. Also will I have to go to a smaller prop with the increase in voltage?[:-]
Old 11-04-2008, 12:00 PM
  #2  
bassmanh
My Feedback: (5)
 
Join Date: Jul 2002
Location: fond du lac, WI
Posts: 801
Received 1 Like on 1 Post
Default RE: 11.1V OR 14.8V?

jim,

what are the max AMPS the motor can take ? and what are your amps at now ? if your able to keep the amps inline with the motor specs then yes you could easily run a 4s pack, and the prop may need to be dropped down to a 10x7 E prop.

BUT without knowing what your amps are (and if there in the motor range) its hard to say yes for sure. you also have to make sure the battery pack and ESC can handle the higher amps as well.


let us know what amps your pulling now and what the motor MFG suggests then we can help a bit more.



bassman
Old 11-04-2008, 12:21 PM
  #3  
jstanton
Thread Starter
My Feedback: (14)
 
jstanton's Avatar
 
Join Date: Aug 2002
Location: Millington, TN
Posts: 3,252
Received 26 Likes on 26 Posts
Default RE: 11.1V OR 14.8V?

Bassman,

Here are the specs that I have for the Motor and it does not tell me anything about max amps.

Model: SK35-36 910
Kv: 910rpm/v
Turns: 8
Resistance: 75
Idle Current: 1.2A
Shaft: 4mm
Weight: 115g
Rated Power: 470w
ESC: 40A
Cell count: 3~4 Lipoly
Suggested Prop: 10*7, 11*8.5, 12*5
Power equivalent : .30 to .40 glow engine

I does say it will handle a 4 cell lipo and can produce 470watts of power. I am getting 360watts at 12v when full charged using a APC 11x8 prop and the plane flies vry well, but I would like a little more power if you know what I mean. I don not want to buy another motor so I was thinking about trying a 14.8 battery and matbe a APC 10x7 prop
Old 11-04-2008, 12:34 PM
  #4  
bassmanh
My Feedback: (5)
 
Join Date: Jul 2002
Location: fond du lac, WI
Posts: 801
Received 1 Like on 1 Post
Default RE: 11.1V OR 14.8V?

jim,

i would say try it and use a watt meter so you know your not going over the max amps for the esc/battery and see what kind of power your getting on a plane that is that light a 4s and 10x7 prop should make it a screamer. if your getting 360 watts now and want the max 470 thats around 175 watts a pound which is getting to almost 3D capable territory.

so i say put the watt meter on and see what ya get for amps and watts just dont keep it running if you see that the amps are high, shut it down so nothing gets cooked but from what i see it should be ok but keep in mind you may need to try a couple different props IE.. 10x7, 10x6 or if the amps are low you may even need to go up. you wont know till you put the watt meter to it.


hope this helps alittle.


bassman
Old 11-04-2008, 12:41 PM
  #5  
jstanton
Thread Starter
My Feedback: (14)
 
jstanton's Avatar
 
Join Date: Aug 2002
Location: Millington, TN
Posts: 3,252
Received 26 Likes on 26 Posts
Default RE: 11.1V OR 14.8V?

Bassman,

Thanks for your help. I will get me a APC 10x7 prop today and give it a try when I get home.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.