I got a world models .46 mustang with a OS..46FX in it.
I`m having trouble with the CG on this. Its coming out Very nose heavy! They show in the book with the batt. and RX next to the gas tank,NO way will that work.
I place the RX+5-cell batt. right in front of the servo tray and still too nose heavy.
I`m balancing it upside down with no gas.
Book says 128mm from front edge of wing along side of fuse.
Anyone else have trouble with the CG on this.
Is 128mm right?
I`m using a GP-balancer.
I`m measuring right at the point were the part of the wing flares out and along the side of the fuse.
This right ,any input with you guys that own one??
Th

I ended up installing a couple of cross members below the wing blind nuts and mounting the 5 cell pack as far back as I could. CG came out ok.

Hope this helps

Mike

I have the same combo, and attempted to balance it with a GP balancer. I encountered the same problem. I had a ton of weight temporarily on the horizontal stab in order to get it to balance. I said to myself: "Self, this just isn't right".

I called a flying buddy who is flying his second one. He told me to put the 5 cell battery in the rear slot of the foam block and fly it.

I followed his advice, and it flys/ lands sweet! This is just another of those RC mysteries. I don't think that I know all the little secrets of the GP balancer.

Good Luck!

BOB, mine did not come with a foam block,just 2 pieces of foam.
Where about are your RX and batt. placed if looking inside the fuse??
thanks.

Directly in front of the servo tray.

i used a cg machine and ended up putting the batt & reciever in front of the servo tray it balanced at a hair over 5" from the very point of the wing where it meets the fuselage .

p.s. 128mm comes to approx 5.22" the correct cg is 5.05" that would account for the nose heavy.

THANKS ALL!!!
I`ll reset set it all and rebal.