FW: [RCSE] SR-7 CG spec

[courtice]

 

-----Original Message-----
From: courtice [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 12, 2001 9:47 PM
To: David Garwood; [EMAIL PROTECTED]
Subject: RE: [RCSE] SR-7 CG spec

Aloha Dave

 

I have been the proud owner of 3 SR-7's. I have a set of Bob Martin's construction drawings in front of me, and the drawings call for a CG placement 17 1/8th inch behind the tip of the nose. (Looks like about 40% of the root chord.)

 

My remaining SR-7 may possibly be one of Bob Martin's early prototypes. The model has an all glass fuselage with the vertical fin molded in. The wings and horizontal stab are glass over foam. I found the model in a local pawn shop. The proprietor had no information about the former owner or the history of the airplane.

 

I also have a reduced scale version of the SR-7 (48" wing) that I designed and scratch built myself. I call the smaller version the SR-5 because it isn't quite big enough to be an SR-7. I used an RG-14 airfoil and with with a good load of ballast along the plane goes like a bat out of hell on a windy Maui day. Much faster than the full size version.

 

Good luck flying at Lake Ontario. The trades have been a consistent 25-30+ every day for a week here.  :)  Feel free to come on over and fly with me if you really want to have some fun!

[courtice] 

 

 --Original Message-----
From: David Garwood [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 12, 2001 11:30 PM
To: RCSE
Subject: [RCSE] SR-7 CG spec

It looks like it will blow at Lake Ontario tomorrow,

enough to take a day off work.  If a reader could

give me the recommended CG range for the

Bob Martin SR7 during overnight tonight, I'd

be appreciative.

 

// Dave Garwood

Albany, New York