RV-6 CG help

[sailvi767]

I want to verify the CG numbers for the RV6 and run a couple of what ifs. Can anyone supply me with the CG numbers Vans recommends for the 6 both normal and aerobatic. I would also like to know the distance from the prop to the datum. Thanks Very much!!

George

 

[GLPalinkas]

CG

From my builder's manual:

Easy Reference section

Recommended Gross Weight: 1600/1650 lbs
Aerobatic Gross Weight: 1370 lbs
Forward CG Limit: 15% of chord or 8.7" aft of leading edge
Aft CG Limit: 29% of chord or 16.8" aft of leading edge
Aerobatic Aft CG Limit: 26.5% of chord or 15.3" aft of leading edge

 

[sailvi767]

Thanks Gary, The aircraft I have is in inches aft of Datum format. The Wing LE is 60 inches aft of datum. The listed normal CG range is 68.7 to 76.8. Aircraft empty is 70.19.
The 76.8 matches your 16.8 when adjusted to the datum so that must be right. That would put the aero CG at 75.3 inches max which is the number I wanted. Now if I can figure out what having a prop installed that is 19lbs lighter has on that CG I will be all set. Probably time to get the aircraft weighed again.

George