Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Power - Batteries, Chargers, ESCs and More > Power Systems
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Power Systems Talk about motors, ESC speed controllers, gear drives, propellers, power system simulators and all power system related topics

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 04-03-2014, 07:02 PM   #1
oldnrinkled
New Member
 
Join Date: Dec 2013
Posts: 7
Thanked 1 Time in 1 Post
iTrader: (0)
Friends: (0)
Default motor and esc alternatives

I see hundreds of electric cars and trucks for sale, sometimes almost a give away on Craigs list. It got me thinking ( why are we not using these cheaper give aways for aircraft use ). I dont know much of todays motors and esc's, is there a reason why they cant be used in aircraft ?
oldnrinkled is offline  
  Reply With Quote
Old 04-03-2014, 07:37 PM   #2
fhhuber
Super Contributor
 
fhhuber's Avatar
 
Join Date: Mar 2013
Posts: 2,180
Thanked 217 Times in 208 Posts
iTrader: (0)
Friends: (1)
Default

Car ESCs typically are heavier due to the large heat sink needed. Also they are often limited to 2S LiPo
You do have to ensure yo disable the reverse function if the ESC has it... Airplanes generally don't do well if you turn the prop backward.

The motors can work fine for aircraft especially if you want a high rpm.

There are still a lot of brushed motors used n RC cars. At least one of the official racing classes specifies a brushed motor.
fhhuber is offline  
  Reply With Quote
Old 04-03-2014, 07:40 PM   #3
JetPlaneFlyer
Super Contributor
 
JetPlaneFlyer's Avatar
 
Join Date: Mar 2009
Location: Aberdeen, Scotland
Posts: 4,432
Thanked 490 Times in 456 Posts
Awards Showcase

5kW  Outstanding Contributor Award  1kW 
iTrader: (0)
Friends: (8)
Default

Some of them probably 'could' be used if you were determined, but the cheap ones you refer to will invariably be low quality brushed motors and old tech NiCd batteries which are far heavier and have less performance than the brushless motors and LiPos we almost exclusively use in RC planes these days.

Car ESC's are also generally not very well suited to RC planes because cars have reverse, which is a big problem if engaged in flight!
JetPlaneFlyer is offline  
  Reply With Quote
Old 04-03-2014, 11:43 PM   #4
sidybee
Member
 
Join Date: Feb 2014
Location: middle of cali
Posts: 75
Thanked 1 Time in 1 Post
iTrader: (0)
Friends: (0)
Default

hahaha i can see it now,,,,,flying straight and true at around thirty miles an hr the hit reverse hahahahahaha air brakes .....somebody try this and post a vid i got to see this.
sidybee is offline  
  Reply With Quote
Old 04-04-2014, 12:01 AM   #5
fhhuber
Super Contributor
 
fhhuber's Avatar
 
Join Date: Mar 2013
Posts: 2,180
Thanked 217 Times in 208 Posts
iTrader: (0)
Friends: (1)
Default

Actually people have done close to the same thing with the adjustable pitch systems for indoor 3D. They hover NOSE DOWN.

https://www.youtube.com/watch?v=BlVL-uvHnyc
fhhuber is offline  
  Reply With Quote
Old 04-04-2014, 02:36 AM   #6
thepiper92
Warbird Fanatic
 
thepiper92's Avatar
 
Join Date: Nov 2013
Location: Winnipeg, Canada
Posts: 1,268
Thanked 28 Times in 27 Posts
iTrader: (0)
Friends: (4)
Default

I have used a car esc in my edf (haven't flown it though) it's rated up to 4s. Most escs for cars over 60 amps are 4s. Reverse wouldn't be good, but it would be neat to use on a large plane, if you could activate with a switch. On landings, hit reverse and it would slow you pretty quickly. As for fans, they can be removed usually. As they have a plastic box around them, they'll still weigh more, but not much.
thepiper92 is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Power - Batteries, Chargers, ESCs and More > Power Systems

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
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 On

Forum Jump


All times are GMT +1. The time now is 02:30 PM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.16455 seconds with 30 queries