Originally Posted by Rennuh
I just got my RTF bixler today and build it this evening with some of the mods from page 1. I also took out the washers in the front with the hot water technique. But as I was trying to get the right CG with the 1300 mAh battery all the way up to the front I found that I actually had to put 3 of the 4 washers back in to get it right at 60 mm from the LE. Is this normal or did I do something wrong here?
Yea you are good. The 2200 weighs more than the 1300. These planes balance without washers and with the 2200 fully forward. Reduce the weight of battery and you add washers to compensate. No worries mate!
You might think about gluing some lead (or washers) to the 1300 battery to equal the weight of the 2200. That will eliminate adding and subtracting washers all the time. The batteries will be all the same weight. That is if you don't use the 1300 in other planes.