Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Dia Dust CG in inches?

Reply

Old 03-25-2007, 08:47 PM
  #1  
stnick
Junior Member
Thread Starter
My Feedback: (2)
 
Join Date: Apr 2004
Location: huntsville, AL
Posts: 12
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Dia Dust CG in inches?

Thanks for the previous replies but I need the CG measured from the trailing edge. Please indicate if your measurement includes the aileron or not.
stnick is offline  
Reply With Quote
Old 03-25-2007, 11:37 PM
  #2  
KC36330
 
Join Date: Apr 2006
Location: Enterprise, AL
Posts: 5,952
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Dia Dust CG in inches?

13.5 inches from the trailing edge of the dust, ailerons NOT included. you might wanna go with 14-14.5, most people who have tried, can't fly mine.

kc
KC36330 is offline  
Reply With Quote
Old 03-26-2007, 12:35 AM
  #3  
Mike Connor
Senior Member
My Feedback: (5)
 
Mike Connor's Avatar
 
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Dia Dust CG in inches?


ORIGINAL: stnick

Thanks for the previous replies but I need the CG measured from the trailing edge. Please indicate if your measurement includes the aileron or not.
The instructions call for 14 1/4" thru 15 7/8" from the trailing edge of the wing, not elevons. Mine few best when balanced at the most aft position which is also on the front spar. I ran out of elevator with the forward cg setting while landing. They tend to come out nose heavy with a 40 size engine. If you can find the front spar just balance there or just in front of it and you will be in the limits of the plans.
Mike Connor is offline  
Reply With Quote
Old 03-26-2007, 01:49 AM
  #4  
KC36330
 
Join Date: Apr 2006
Location: Enterprise, AL
Posts: 5,952
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Dia Dust CG in inches?


ORIGINAL: Mike Connor


.................They tend to come out nose heavy with a 40 size engine.
only when used with a side exhaust and the 'stock' type muff, rear exhaust with a pipe line mine balanced just about perfect according to your by the plans location with the Jett 60LX, i used a 750 mAh NiMh to get it on back where I've got it at.

kc
KC36330 is offline  
Reply With Quote
Old 03-26-2007, 10:22 AM
  #5  
Mike Connor
Senior Member
My Feedback: (5)
 
Mike Connor's Avatar
 
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Dia Dust CG in inches?


ORIGINAL: KC36330


only when used with a side exhaust...
kc
Despite my efforts I still had to add 2 oz of lead for a decent balance. I was happy with the MT weight of 2 lbs 12 oz though.
Mike Connor is offline  
Reply With Quote
Old 03-26-2007, 01:20 PM
  #6  
mfracer@itctel.com
 
Join Date: Jan 2007
Location: brookings, SD
Posts: 163
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Dia Dust CG in inches?

Also laminate your motor mount to 1/4" & cut motor back 3/8" that really helps the balancing.

Move flat battery pack all the way back behind rear spar.

I agree a tuned pipe makes balancing easier than a side mounted muffler.

Mike
mfracer@itctel.com is offline  
Reply With Quote

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