HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 16, 2013, 06:58 AM
Registered User
Terry Rigden's Avatar
UK, Bedworth
Joined Apr 2004
2,737 Posts
Prop out of balance

My prop is out of balance and its causing the rudder to shake about in flight. The hub is drilled off centre and when on a pin the prop comes to rest with the blades horizontal but always the same way . I tried filling the heavy side of the hub and adding tape to the light side to no avail. Any other ideas ?

Terry
Terry Rigden is offline Find More Posts by Terry Rigden
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 16, 2013, 07:06 AM
Registered User
TurboRacer's Avatar
United States, CT, Waterbury
Joined Oct 2002
1,913 Posts
Get a new prop! My stock one I couldn't get balanced. I got a couple spares from LHS and they are both perfect.
TurboRacer is online now Find More Posts by TurboRacer
Reply With Quote
Old Jan 16, 2013, 11:38 AM
Registered User
Terry Rigden's Avatar
UK, Bedworth
Joined Apr 2004
2,737 Posts
Been experimenting with props as the standard one gives a lot of vibration and the rudder has a resonance at the standard props RPM.

Micro Invent 125 x 75 Mines a bit battered still getting the vibration and resonance from the rudder. but reduced Slight improvement in flight times

Minium 100 x 60 Motor revs much faster so no resonance with the rudder. Model has good performance flying on the wing but less good at high alpha. Better duration at low alpha worse at high.

Anyone else tried other props ?

Terry
Terry Rigden is offline Find More Posts by Terry Rigden
Reply With Quote
Old Jan 16, 2013, 12:54 PM
Foam flogger
Roseville, CA
Joined Apr 2009
1,146 Posts
Picked up mine on Monday. My new batteries last about 4 minutes each and I'm having the same problem with vibration in my rudder. Will pick up a new prop next time I'm in my LHS and see if that helps.
Belem is offline Find More Posts by Belem
Reply With Quote
Old Jan 16, 2013, 02:06 PM
Registered User
Terry Rigden's Avatar
UK, Bedworth
Joined Apr 2004
2,737 Posts
I tried the following without success but it might be worth a try

Put a small piece of sticky tape on one blade , test fly. Did it get better or worse
If worse put tape on other blade and repeat test
If it got better add a bit more tape if it improves add more tape if worse take some off.

Remove prop slide it on a pin , spin it a few times and note where it stops
Mine always stopped with the blades horizontal the same way up. So I started filing the lower edges of the two blades. Didn't make much difference I think the hole is drilled off centre.
Terry
Terry Rigden is offline Find More Posts by Terry Rigden
Reply With Quote
Old Jan 16, 2013, 02:25 PM
Registered User
TurboRacer's Avatar
United States, CT, Waterbury
Joined Oct 2002
1,913 Posts
Don't even have to fly to test, just hold on to where the landing gear goes in.. You can feel/see the thing vibrating if it's out of whack. Also check blade tracking, that can make vibrations if uneven..
TurboRacer is online now Find More Posts by TurboRacer
Reply With Quote
Old Jan 17, 2013, 04:16 PM
Registered User
Canada, ON, Ottawa
Joined Jan 2012
414 Posts
Quote:
Originally Posted by coreman View Post
and you can hopefully report back once you get it
Will do. I ordered the props and savers in the links from post #894. The savers are in the mail, but I have been advised that the props are out of stock and there is no known date of when they will be in stock.

I'll have to try to find another source. As I am new to planes does anyone have a url for a good supplier with a large variety of propellers?

I'll see what I can find.
ronaldj is offline Find More Posts by ronaldj
Reply With Quote
Old Jan 17, 2013, 04:27 PM
Registered User
3d astronaut's Avatar
United States, MI, Paw Paw
Joined Sep 2011
4,110 Posts
Whats a fair price for a used mini in practically brand new shape with 3 batteries, charger, original box and manual?
3d astronaut is offline Find More Posts by 3d astronaut
RCG Plus Member
Latest blog entry: Fatshark Attitude 1.3ghz
Reply With Quote
Old Jan 17, 2013, 04:46 PM
Foam flogger
Roseville, CA
Joined Apr 2009
1,146 Posts
BNF or RTF?
Belem is offline Find More Posts by Belem
Reply With Quote
Old Jan 17, 2013, 04:57 PM
Registered User
3d astronaut's Avatar
United States, MI, Paw Paw
Joined Sep 2011
4,110 Posts
Bnf
3d astronaut is offline Find More Posts by 3d astronaut
RCG Plus Member
Latest blog entry: Fatshark Attitude 1.3ghz
Reply With Quote
Old Jan 17, 2013, 06:06 PM
Foam flogger
Roseville, CA
Joined Apr 2009
1,146 Posts
If they're stock batteries or better I'd say $80 is fair. You'll lose money on the open box but the batteries should make up for most of it.
Belem is offline Find More Posts by Belem
Reply With Quote
Old Jan 18, 2013, 05:39 PM
Registered User
sideburn's Avatar
USA, CA, Cardiff-by-the-Sea
Joined Nov 2005
1,871 Posts
Hey guys, I'm not much of a plane flyer, but I have a UM P-51 and now a Mini Vapor. I was wondering if it makes sense to set rudder->aileron mixing in the TX on the mini vapor so the rudder stick also controls the tail. I was thinking it might make it easier on the brain when swtiching between a 3ch and a 4ch plane.
sideburn is offline Find More Posts by sideburn
Reply With Quote
Old Jan 18, 2013, 05:58 PM
Kit Manufacturer
coreman's Avatar
United States, MA, Southbridge
Joined Feb 2010
3,573 Posts
Quote:
Originally Posted by sideburn View Post
Hey guys, I'm not much of a plane flyer, but I have a UM P-51 and now a Mini Vapor. I was wondering if it makes sense to set rudder->aileron mixing in the TX on the mini vapor so the rudder stick also controls the tail. I was thinking it might make it easier on the brain when swtiching between a 3ch and a 4ch plane.
I sure find it helpful.
coreman is offline Find More Posts by coreman
RCG Plus Member
Latest blog entry: And into the winter season...
Reply With Quote
Old Jan 18, 2013, 06:07 PM
ancora imparo
jj604's Avatar
Melbourne, Australia
Joined Jul 2005
6,767 Posts
Just remember if you move both the aileron and rudder stick to do a coordinated turn as you would on a 4 channel plane, you will get double the rudder movement as they add together.
Quote:
Originally Posted by coreman View Post
I sure find it helpful.
jj604 is online now Find More Posts by jj604
Reply With Quote
Old Jan 18, 2013, 06:44 PM
Have fun
airpower's Avatar
Joined May 2007
6,148 Posts
I don't, on 3ch with bottom heavy dihedral wings you can almost treat the rudder like an aileron.
airpower is offline Find More Posts by airpower
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Wanted I Need a Parkzone (Vapor) DSM2 Rec/ESC/servo "Brick" *** Joe Pierson Aircraft - Electric - Micro & Indoor Airplanes (FS/W) 2 Mar 25, 2012 11:27 PM
Sold parkzone vapor bnf original $50.00 shipped chrisb22 Aircraft - Electric - Micro & Indoor Airplanes (FS/W) 3 Mar 03, 2012 02:25 PM