RE: nitroplanes.com FW 190 Build
Ok , so if the standard is 16 to 24 oz needed for proper cg , then i would still try to move anything you can forward ,
1)build a battery box on the firewall ,
2)use a 1500 battery =4.4oz up to a 4.8vt 2400 battery =8.4oz both will give you longer flight times and its much better then dead weight
3)go to Kalvin wheels or Dave Brown light wheels , the average weight of Robart scale wheels , and others is about 2.4oz for 3.5" wheels and higher ,
you can shave about 2.5 oz in total by going to Kalvin or Dave Brown ,
Hanger 9 wheels dont work , they weigh the same as robart
4)if you can move your servos forward in the fuse even if you have to build a new tray and cut out the old ,
again this is just my advice but I hate to add dead weight