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

Brushless motor question

Reply

Old 03-27-2006, 09:38 AM
  #1  
gjpratt
Member
Thread Starter
 
Join Date: Dec 2005
Location: Kennesaw , GA
Posts: 54
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Brushless motor question

I am looking for a brushless motor for my Lancair EP. What doe the three numbers mean. For example I need a motor that runs a gearbox. I was looking at the new Gret Planes Ammo but dont know what the numbers 20-30-5200KV mean when it comes to picking the correct size. Also I assume I need an inrunner to run the gearbox.

Any help would be good thanks.
gjpratt is offline  
Reply With Quote
Old 03-27-2006, 07:49 PM
  #2  
Bevo
Senior Member
 
Join Date: Jan 2005
Location: Midvale, UT
Posts: 426
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Brushless motor question

The 20 standards for the size. The KV is your RPM per volt. In other words the higher the kv the more speed or rpm. The lower the kv the more torque usually. Two motors you could look at that can handle the weight of the Lancair are the E-flite 400 4200 kv and the Himax 2025-4200kv. Both motors can be put into a gear box and they both can handle up to a 32oz airplane.


Bevo
Bevo is offline  
Reply With Quote
Old 03-28-2006, 09:08 AM
  #3  
gjpratt
Member
Thread Starter
 
Join Date: Dec 2005
Location: Kennesaw , GA
Posts: 54
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Brushless motor question

Thanks Bevo

I am stuck between either using LIPOS instead of the supplied NiMH. That will reduce my weight and the speed 400 should perform better. I think that will be my first move. Then I might go with the e-flight 400.
gjpratt 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