Electric Training If you are new to electric learn more about them here or ask questions.

Brushless motor size???

Reply

Old 04-20-2011, 08:29 AM
  #1  
jnail
Senior Member
Thread Starter
 
Join Date: Jan 2009
Location: bemidji, MN
Posts: 501
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Brushless motor size???

Hey guys, i am looking at building a small blue foam yak 55. Not sure of the manufacture, but it is really cheap. What I am struggling with is how to determine the size of brushless motors. There doesn't seem to be any industry standard that I can see.

The motor that is suggested by the instructions that come with the plane is am e-flite park 300, among other high-dollar motors like scorpion, hacker etc. I really don't want to put a motor on this thing that costs 5 times the price of the plane! so I am looking for a cheaper alternative. Also, I need to know what esc. A 6 to 10a was suggested by someone who built one in our club.

3s 700mah battery.

Thanks, jeff
jnail is offline  
Reply With Quote
Old 04-20-2011, 03:24 PM
  #2  
blvdbuzzard
 
Join Date: Jun 2002
Location: high deserts, CA
Posts: 3,701
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Brushless motor size???

Here are a few budget 300 sized motors that should not break the bank.

http://www.hobbypartz.com/300motors.html

A couple of 370 sized motors too

http://www.hobbypartz.com/370brmo.html

Buzz.
blvdbuzzard is offline  
Reply With Quote
Old 04-21-2011, 08:22 AM
  #3  
Dr Kiwi
Senior Member
 
Join Date: Dec 2002
Location: Chattanooga, TN
Posts: 2,198
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Brushless motor size???

You'd need at least a 10A ESC for any of those 300 motors on 3s..... and at least 20A for the 370's.

Here is a tried and true equivalent to an E-flite 300 (24g, 1380Kv)........

http://www.hobbyking.com/hobbyking/s...idProduct=2069 (24g, 1300Kv)
Dr Kiwi is offline  
Reply With Quote
Old 05-07-2011, 02:03 PM
  #4  
aeajr
My Feedback: (2)
 
aeajr's Avatar
 
Join Date: Jan 2003
Location: Long Island, NY
Posts: 8,567
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Brushless motor size???

Everything you wanted to know about electric flight
http://www.rcuniverse.com/forum/m_7100376/tm.htm
aeajr is offline  
Reply With Quote

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