SmaragdZ CG

[Troy Newman]

true the newer models had the wing tube moved back in the wing...But the wing should be in the same location on the fuse.

25.4mm is 1inch so you should be at the rear edge of the tube in the aft tube location and about 1.24" behind tube center in the forward tube location (original SMARAGD's)

This tube location was not a Z mod rather it was a change in manufacturer to get the tube more aft and closer to the CG....My Z came with the tube forward just like my original Non Z model.


TN
  ----- Original Message ----- 
  From: Patternrules at aol.com 
  To: discussion at nsrca.org 
  Sent: Thursday, March 25, 2004 8:40 AM
  Subject: Re: SmaragdZ CG


  In a message dated 3/25/2004 10:13:15 AM US Eastern Standard Time, Patternrules at aol.com writes:
    I have 2 Smaragd the newer one has the tune in a different place than the first that I bought from Pete Collinson becaus of this we need to work from the leading edge, I check but as memory serves me right the newer one had the tube 7/8 in. farther back than the original one, this can made a big difference
   Ok I just checked and the old is 5 3/4 from the front and the new is 6 3/4 so you need to shoot for from Troy's figures 6 15/16 for the 30mm or 7 5/16 for the 40mm form leading edge I just ran into a problem with mine I had changed equitment and taken some weight out but didn't recheck cg, it flew ok till I tried to land it and the nose would drop out real bad it was just barely tail heavy by no more than a 1/4 in so that's why I felt the need to send these mine was setup originally at the 40 MM so if you go with the 6 15/16 from leading edge you'll be safe. Just a way to double check.


  Steve Maxwell
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