SonexBuilders.net

Posted: **Mon Mar 23, 2015 10:46 pm**

One more tip to save some weight, get a lightweight lithium ion battery, here's what I have:

http://vwaircraftengines.com/viewtopic. ... &t=58#p599

At 3.5lbs, this is a significant weight saver.

How To: Sonex - Build it light?