HobbyKing.com New Products Flash Sale
Thread Tools
Old Mar 20, 2007, 06:03 AM
Suspended Account
New Zealand, Waikato, Hamilton
Joined Aug 2005
2,432 Posts
well i was going through my drawers

an found my magnetic prop balance and thought....is it really necessary to balance props or a good marketing gimmick for prop balancers, by that i mean if i look at a glow motor, its full of reciprocating parts which I guess have never been balanced? so what difference is a nylon prop going to make?
NZ_Nitro is offline Find More Posts by NZ_Nitro
Reply With Quote  (Disabled)
Sign up now
to remove ads between posts
Old Mar 20, 2007, 07:39 AM
Average User
M Ashmore's Avatar
Bakersfield, California
Joined Aug 2003
1,726 Posts
A slight imbalance near the center of rotation (as in engine parts) will not cause a great deal of vibration. BUT, take that same amount of imbalance and move it out 5" from the center of rotation (as with a 10" prop) and the vibration will be significant.

M Ashmore is offline Find More Posts by M Ashmore
Reply With Quote
Old Mar 20, 2007, 09:41 AM
Registered User
Staffs, UK
Joined Nov 2003
10,767 Posts
You mean as the engine is already partly unbalanced you think it's a good idea to add an out of balance prop to make it even further out of balance ? Can't quite see the logic myself .

slipstick is online now Find More Posts by slipstick
Reply With Quote
Old Mar 20, 2007, 12:48 PM
Registered User
Philadelphia, PA
Joined Apr 2005
98 Posts
The problem with balancing a prop is that it's done before installing it onto the engine which is good, however, how many people have you seen nick a prop on landing (me included) and not remove the prop and rebalance it. We're so worried about sanding a few specs of plastic off a new blade but we pay no attention to a major gouge once it's bolted to an airplane!
garyinpa is offline Find More Posts by garyinpa
Reply With Quote
Old Mar 20, 2007, 11:44 PM
I meant to do that
littlewing78's Avatar
Eagle Mountain, Utah
Joined Jul 2004
1,423 Posts
Thats why you make sure you nick both blades.
littlewing78 is offline Find More Posts by littlewing78
Reply With Quote
Old Mar 21, 2007, 12:36 AM
I Wish I Was Flying...
sdueck's Avatar
United States, CO, Littleton
Joined Nov 2006
689 Posts
Originally Posted by littlewing78
Thats why you make sure you nick both blades.
^^^ AMEN! ^^^
sdueck is offline Find More Posts by sdueck
Reply With Quote
Old Mar 21, 2007, 11:48 PM
Registered User
tailskid2's Avatar
USA, AZ, Phoenix
Joined May 2003
3,424 Posts
After my landings I WISH I had a nick or two: instead I have two pieces of the prop, far, far apart!
tailskid2 is offline Find More Posts by tailskid2
RCG Plus Member

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Tweaked my heli and going through phase1 160_GSI_FS Micro Helis 1 Jun 13, 2007 04:11 PM
Told my wife I was going Brushless Cas123 Humor 4 Jun 13, 2004 10:06 PM
Car trouble-cylinders fired intermitently as I was trying to start my Jeep... tempest411 Life, The Universe, and Politics 9 Oct 14, 2002 04:32 AM
Help get something through my thick head! jcatron Power Systems 13 Feb 16, 2002 06:40 AM
Are Prices on Slowflyer kits going up?-My LHS must think so. mrebman Parkflyers 9 Dec 04, 2001 08:11 PM