Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Rocket Boosted Gliders
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 03-28-2012, 10:58 PM
rokitflite's Avatar
rokitflite rokitflite is offline
Master Modeler
 
Join Date: Mar 2005
Posts: 952
Default Help With An Old Plan...

Does ANYONE here have any idea of the rough CG of the old Estes "Flying Jenny" plan for a good glide? The plans suggest a trial and error approach, but I'm doing an upscale and don't really want to use this method.
__________________
Scott

NAR #32070
Reply With Quote
  #2  
Old 03-29-2012, 12:02 AM
jharding58's Avatar
jharding58 jharding58 is offline
Master Modeler
 
Join Date: Apr 2007
Location: Kennesaw, GA
Posts: 1,936
Default

Another of those models needing a proverbial "field of tall grass" for flight trimming. The best way to find the "balance point" is to suspend the model inverted on a thread. In this case, tie a small loop around the lower spar and move it until the model hangs level. This is your built balance point. The CG will probably need to be forward of the lower wing dependent upon the span of your model, by 3/4" or 1". Course, if you are not going to spit the motor then install an empty casing to set you glide CG

If all else fails get in touch with Squirrel Works and ask for the suggested CG for the Red Baron or Mega Red Baron.
__________________
Gravity is a harsh mistress
SAM 002
NAR 91005
"The complexity of living is eminently favored to the simplicity of not."
Reply With Quote
  #3  
Old 04-02-2012, 06:33 AM
kevinj's Avatar
kevinj kevinj is offline
Not so Junior
 
Join Date: Apr 2009
Posts: 432
Default

Seeing Scott's model nudged me into action on finishing up my Mega Baron rc project. Previously I had glued up the wings and motor mount. Yesterday I got the fuselage and wing supports glued together and cut my elevons from the upper wing.

kj
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 04:10 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024