Go Back  RCU Forums > Electric Aircraft Universe > Glow to Electric Conversions
Reload this Page >

P82 Mustang: Need help selecting 2 electric motors and ESCs

Glow to Electric Conversions Discuss glow/gas conversion to electric here.

P82 Mustang: Need help selecting 2 electric motors and ESCs

Reply

Old 03-15-2015, 06:18 PM
  #1  
downunderjo
Junior Member
Thread Starter
 
Join Date: Mar 2007
Location: , AFGHANISTAN
Posts: 23
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Question P82 Mustang: Need help selecting 2 electric motors and ESCs

Hi there
I was given a scratch built P82 (double fuse Mustang) with nearly 2m wing span. It will have retracts and flaps besides aileron, rudder and elevator.
I guess the all up weight would be around 5kg.
There is no plan or any info that came with the bits and now I am looking at fitting it out with two electric motors and matching ESCs.

Can someone suggest how to select a suitable motor and ESC? Do you go by weight per kg (or lbs for you Americans) or thrust relative to weight? Can I just double each motor's performance given that the P82 is a twin??
Any ideas or help with suitable websites or similar twin aircraft are much appreciated,

cheers
Jo from NZ
downunderjo is offline  
Reply With Quote
Old 03-16-2015, 01:33 AM
  #2  
canabus
Member
 
Join Date: Feb 2015
Posts: 96
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hobbyking have a War birds P-51 OLD CROW wingspan 110mm(43.32 inches) weight 1220 grams(2.68lbs)
motor 750KV
ESC 35A
2200mah 3S(11.1volts) Lipo battery.
So with two each of the above, will get you flying.
Look for a motor and ESC which will handle 3S and 4S batteries, cheap way increasing speed!!!
Cheers and Beers

From Tassie.
canabus is offline  
Reply With Quote
Old 03-18-2015, 11:01 AM
  #3  
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

EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT
http://www.rcuniverse.com/forum/m_7100376/tm.htm

See chapter on sizing power systems.

But basically you have an 11 pound all up weight estimate. At 100 watts/pound that would suggest two 550 watt motors. See the on-line book for more.
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