RunRyder RC
WATCH
 3 pages [ <<    <     1      2     ( 3 )    >    >> ] 2153 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Carbon tail blade balance.
07-21-2017 04:46 PM  17 months agoPost 41
Paul Woodcock

rrElite Veteran

Dubai - United Arab Emirates

My Posts: All  Forum  Topic

Hi AirWolfRC

My Newtonian physics is a little rusty, sorry.

The last time I calculated rotational inertia was +25 years ago.
We always assume a single object attached to a string....or something like that.

With heli blades, we would have to calculate a 'mass point'. I used the phrase CG(span wise). What is the correct phrase for this calculated point to use as the radius in these calculations?

Regards
Paul

PM  EMAIL  GALLERY  Attn:RR  Quote
07-21-2017 04:56 PM  17 months agoPost 42
EEngineer

rrProfessor

TX

My Posts: All  Forum  Topic

"I used the phrase CG(span wise)."

With span-wise CG, the "tennis racket" effect might come into play.

But, simple blade balancing(removing/adding weight) is better than doing nothing at all.

And, by weighing the blades, one can see that not all blades are made "equal" at the factory...close, but not exact....

Logo 600SXs, 800XX, TDR IIs

PM  EMAIL  Attn:RR  Quote
WATCH
 3 pages [ <<    <     1      2     ( 3 )    >    >> ] 2153 views POST REPLY
HomeAircraftHelicopterHelicopter Main Discussion › Carbon tail blade balance.
 Print TOPIC  Make Suggestion 

 10  Topic Subscribe

Monday, December 17 - 8:06 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online