Finding proper CG of a DV8R
 

I've seen there's been a little discrepancy between the stated CG of the PCM DV8R and what others are using. Normally with any of my acrobatic plane I would just fly inverted and see if it dives or climbs. That's what I was going to do with the DV8R but then I realized it's a semi symmetrical wing. Would that mean it's going to dive with a proper CG when inverted?


Thanks,
Shaun

RE: Finding proper CG of a DV8R
 

When I talked to Pat the proper CG is 10 3/8 from leading edge. Mine needs little trim inverted, Gerry

RE: Finding proper CG of a DV8R
 

Is that 10 3/8 from the front of the wing or at the front on the leading edge as it exits the side of the fuse. If it's the latter, my CG is about 3/8 too far forward.

Thanks for the response,
Shaun

RE: Finding proper CG of a DV8R
 

The CG is 10 5/8 not 10 3/8 From where the wing exits the fuse. I hit the wrong key. Also make sure you balance the wing!! IMPORTANT!! Also what engine are you using?? Gerry Hinshaw

RE: Finding proper CG of a DV8R
 

I had 15 oz next to the nose and both batteries up front.

RE: Finding proper CG of a DV8R
 

That's almost a pound of weight. I've got 2oz in the nose with Lipo's near the front. You must be running a much larger turbine maybe. I've got a Simjet 2300 in mine.

Shaun

RE: Finding proper CG of a DV8R
 

I am running a Artes Super Eagle 120. 30 pounds of thurst. It Flies GREAT You can check out the videos at

http://troybuiltmodels.com/newsite/jets/tbm/dv8r.html

Gerry HInshaw

RE: Finding proper CG of a DV8R
 

My DV8R needed no additional nose weight. However, all batteries including the smoke pump are in the nose of the aircraft. Without fuel the aircraft will stand on its tail. I am flying with the cg at 10 5/8. Does not seem to be critical on balance. Our DV8R is extreamly heavy 32lbs........ At take off with smoke and full fuel we are at 43 lbs. Plane flies great thanks to the legendary power of the AMT Mercury HP, just ask Paul Jr.

DM ;)