Electric Aerobatic & Sport Planes Discuss rc electric aerobatics and rc sport flyers here.

Lancair motor upgrade

Reply
Old 08-22-2013, 12:59 PM
  #1
freddy s
Thread Starter
 
Join Date: Jan 2005
Location: n. las vegas, NV
Posts: 85
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Lancair motor upgrade

Hello everyone,I am new to the world of electrics,but not to rc flying.Recently acquired a Electrify Lancair ep.It has a 400 brushed motor and a gear drive.I want to change that setup to a brushless motor direct drive and still use the 9" size props.I have no idea how to figure this out.What size motor,what kv rating,esc and batteries.The overall weight will be no more than 32 ounces.Any help will be deeply appreciated.
freddy s is offline  
Reply With Quote
Old 08-23-2013, 01:02 PM
  #2
Dr Kiwi
 
Join Date: Dec 2002
Location: Chattanooga, TN
Posts: 2,198
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

For this type of aircraft 100W/lb is probably more than sufficient.... so 200W should be plenty, and 300W would be a rocket ship.

A geared 400 would be around 100-120W... this motor is lighter than a geared 400....http://www.hobbyking.com/hobbyking/s...00kv_560w.html.... it would give you way more than that (200W+).. you could even prop down to 8".

Probably the 1100Kv version would be enough using the 9" prop http://www.hobbyking.com/hobbyking/store/__16230__NTM_Prop_Drive_Series_35_30_1100kv_380w.h tml/ 3s 1200-1500mAh battery, 30A ESC. http://www.hobbyking.com/hobbyking/s...ontroller.html

Last edited by Dr Kiwi; 08-23-2013 at 06:14 PM.
Dr Kiwi is offline  
Reply With Quote
Old 08-23-2013, 05:40 PM
  #3
freddy s
Thread Starter
 
Join Date: Jan 2005
Location: n. las vegas, NV
Posts: 85
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Lancair

Thanks to the Doctor,this is just what I was looking for.Should do quite well.Many thanks for the informative answer,,,,Freddy
freddy s is offline  
Reply With Quote
Old 11-26-2014, 01:35 PM
  #4
Howard Mote
 
Join Date: Jun 2014
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Thumbs up

A friend gave me the plane because it would not fly with the stock setup. I took and cut off the fire wall and cut some 1/8 lite ply to fit the fire wall used 5min epoxy to glue it in.Then i mounted a hobby king 3530 1100kv with a 40amp esc and used a 1800mah 30c lipo.i mixed in flaparons so i could slow down some for landing it worked very well. it was a super fast plane near if not 100mph.Don't worry about the weight so much that setup has more than enough power to get her to fly like a pro.

Last edited by Howard Mote; 11-26-2014 at 01:38 PM.
Howard Mote is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 05:11 AM.