Go Back  RCU Forums > RC Airplanes > Twin & Multi Engine RC Aircraft
Reload this Page >

Counter-rotating nitro engines,,,

Community
Search
Notices
Twin & Multi Engine RC Aircraft Discuss the ins & outs of building & flying multi engine rc aircraft here.

Counter-rotating nitro engines,,,

Thread Tools
 
Search this Thread
 
Old 12-21-2006, 04:32 AM
  #1  
wurthless
Junior Member
Thread Starter
 
Join Date: Oct 2005
Location: Redding, CA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default Counter-rotating nitro engines,,,

Can you get them turning in opposite directions? How?
Old 12-21-2006, 08:19 AM
  #2  
R8893
My Feedback: (20)
 
Join Date: Oct 2002
Location: Cincinnati, OH,
Posts: 973
Likes: 0
Received 11 Likes on 10 Posts
Default RE: Counter-rotating nitro engines,,,

If the engine has a removeable front housing, like some of the older Super Tigers, you can rotate the front housing 90 degrees in the direction the engine currently rotates and the engine will run backwards. Same concept with a rear induction engine. Otherwise a reverse rotation crankshaft is required.
Old 12-21-2006, 06:52 PM
  #3  
wingman371
Senior Member
 
Join Date: Oct 2006
Location: Glennville, GA
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

Do any of the manufacturers offer this option if buying factory direct?
Old 12-21-2006, 08:51 PM
  #4  
Mods-R-Me
Senior Member
My Feedback: (1)
 
Mods-R-Me's Avatar
 
Join Date: Jun 2005
Location: Antelope Valley, CA
Posts: 825
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,


ORIGINAL: wingman371

Do any of the manufacturers offer this option if buying factory direct?
Don't know what type of engine you're looking for but try [link=http://www.jettengineering.com/]jettengineering[/link] and ask for an engine with a counter rotating crank shaft. I bought a 0.90 size front intake rear exhaust engine and it hauls butt.

Mods
Old 12-23-2006, 01:56 AM
  #5  
wurthless
Junior Member
Thread Starter
 
Join Date: Oct 2005
Location: Redding, CA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

Hummm,,,looking at a cpuole of OS or AP .15's for a Bronco. Thanks for the info..
Old 12-23-2006, 01:12 PM
  #6  
jaka
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,816
Likes: 0
Received 4 Likes on 4 Posts
Default RE: Counter-rotating nitro engines,,,

Hi!
I can assure you that one engine that turns in the opposite direction isn't needed on a twin.
OS has cams for their four strokes that makes the engine turn in the opposite direction though.
I use two OS .FS26 four strokes in my DC-3 below...both turning 3-blade, 10X5 carbon fiber props counter clockwise.
Attached Thumbnails Click image for larger version

Name:	Mk27280.jpg
Views:	50
Size:	66.5 KB
ID:	582326   Click image for larger version

Name:	Xs57943.jpg
Views:	59
Size:	17.8 KB
ID:	582327  
Old 12-23-2006, 08:42 PM
  #7  
Wayne22
My Feedback: (2)
 
Wayne22's Avatar
 
Join Date: Apr 2002
Location: Strathcona county, AB, CANADA
Posts: 5,394
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

Cool...another .26 user!! I have flown twins with .26 and .91 4 strokes both turning the normal direction...there are no problems operating them that way.

If you do get a reversed rotaton engine, you would have to use a pusher prop on it, and they are very very limited in selection.

In the absence of a real compelling reason to have them turn in opposite directions, it is simpler, easier, and cheaper to use two off-the-shelf engines turning the same direction....
Old 12-24-2006, 01:12 PM
  #8  
wurthless
Junior Member
Thread Starter
 
Join Date: Oct 2005
Location: Redding, CA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

Being new to planks and haveing no knowledge about twins . I had heard someone else say counter rotating engines redeuced the torque on thier electric twin. I now see many other problems in haveing CR engines and besides the "koolness"of seeing them in actin will not worry about it anymore. Reverse props and all that headache,,good info,,, and thankyou for educating me. Happy Holidays,,,manysmart people here THANKS,,,
Old 12-25-2006, 10:56 PM
  #9  
fliir
Senior Member
 
fliir's Avatar
 
Join Date: Aug 2005
Location: Belmont, MI
Posts: 253
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,


ORIGINAL: wurthless

manysmart people here THANKS,,,
and there are a lot of us other guys too
Old 12-26-2006, 01:03 AM
  #10  
wurthless
Junior Member
Thread Starter
 
Join Date: Oct 2005
Location: Redding, CA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

HAAHAHAHHAHAHA LOL ,,,yes I'm glad I'm not alone,,plenty of
nice
smart
friendly
helpfull
kind
yakaty
sharing
funny
clever
skilled
silly
people here,,,,I'm sure I did'nt list us all can you help???
Old 12-27-2006, 03:53 PM
  #11  
drdoom
My Feedback: (9)
 
Join Date: Apr 2002
Location: Belton , MO
Posts: 3,126
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Counter-rotating nitro engines,,,

Years ago I had a pair of ENYA .45's that were set up to turn in the Opposite direstion.
I used them in the Royal DC-3, Beech Barron, They worked Very Well.

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



Contact Us - Manage Preferences - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.