Notices
Hitec/MultiPlex Radios- Ask Hitec Customer Service Ask Hitec/MultiPlex Customer Service your Radio questions here.

Aurora 9 and Swashplate Phasing

Old 05-16-2010, 12:28 AM
  #1  
Whirligig
Thread Starter
 
Join Date: Aug 2006
Location: Torrance, CA
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default Aurora 9 and Swashplate Phasing

I have a problem getting rid of some swashplate phasing when pumping the collective with the Aurora 9. The helicopter is a Gazaur Poseidon 480 with a 120 degree swashplate. The elevator (Ch3) servo has a slight lead when changing the collective up or down. When jiggling the collective up and down, there's a slight rocking of the swashplate when viewed from the side. I tried different things on the Aurora 9 to correct this such as end point adjustment, swash mix, acceleration, program mix, and finally servo delay. Only the last gives some improvement but it's still there.

On the mechanical side, I tried swapping servos, made sure the length of the links are in spec, and re-installing the servo arms to use minimal subtrim to no avail. This problem does not exist on my Trex 600 which is a much larger helicopter but it's noticeable on the Poseidon. I wonder if the smaller size of the heli magnifies any imperfection in the transmitter mixing. It certainly explains why the heli would backup on me when I jiggle the collective in a hover.

I must be doing something wrong. Is there a technique or procedure in correcting this problem? It's not clear to me how the swash mix features work on the Aurora.

Thanks,

Whirligig
Old 06-28-2010, 11:17 AM
  #2  
Whirligig
Thread Starter
 
Join Date: Aug 2006
Location: Torrance, CA
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Aurora 9 and Swashplate Phasing

The problem has been resolved! The Airtronics 94091 servos installed by the previous owner were replaced with Hitec HS65HB and the swashplate is now in perfect phase. The replacement took serveral hours because of the Y-arrangement of the servos but it was well worth it. Evidently the Airtronics servos are better off on a park flyer. The Hitec are more precise. Just a dash of subtrim was needed for the pitch but the others were perfectly zeroed. I can now fly the Poseidon head-in confidently.

Whirligig
Old 06-28-2010, 04:06 PM
  #3  
A.T.
Senior Member
 
Join Date: Jul 2002
Location: Auckland, NEW ZEALAND
Posts: 2,581
Likes: 0
Received 1 Like on 1 Post
Default RE: Aurora 9 and Swashplate Phasing


ORIGINAL: Whirligig The problem has been resolved! The Airtronics 94091 servos installed by the previous owner were replaced with Hitec HS65HB and the swashplate is now in perfect phase. The replacement took serveral hours because of the Y-arrangement of the servos but it was well worth it. Evidently the Airtronics servos are better off on a park flyer. The Hitec are more precise. Just a dash of subtrim was needed for the pitch but the others were perfectly zeroed. I can now fly the Poseidon head-in confidently. Whirligig
Good problem resolved, the following may also assist:
Aurora A9 - Helicopter Set Up - Finless Bob's Helifreak Tech Room - Review Tips and how-To Videos
Aurora A9 - Heli Swash (Cyclic) Ring to be included in a future Firmware Update.
Aurora A9 - Gyro Set-up - How to interpret numbers & modes on screen.
Aurora A9 - Gyro Heading Hold etc set up 450 Heli - a.
Aurora A9 - Gyro set up 450 Heli - b.

more information:
Aurora A9, Spectra Pro & Optima - FAQ & Undocumented Features - Mixes, Setups, Tips. {Individual Links often updated}

Regards
Alan T.
Alan's Hobby, Model & RC FAQ Web Links
Old 06-29-2010, 12:53 AM
  #4  
Whirligig
Thread Starter
 
Join Date: Aug 2006
Location: Torrance, CA
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Aurora 9 and Swashplate Phasing

Alan,

Finless Bob's videos on the A9 are great! Finally I understand the tradeoff between Normal and Scan mode. The Failsafe video is a must see.

Thanks,

Whirligig

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 - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.