How heavy is too heavy?

Intro 00:00
Test Flight 01:43
Flight two 09:47



Today I aimed to find out, so we flew the FMS Yak 130 with a 900g 6s 6000 ....... normally run a 6s 33004000 that comes in just under 500g. It flew remarkably well, a ton of wing flex but it handled some fairly tight loaded rolls and pulling somewhat gently out of some steep dives. If your going to just rip balls the whole flight this is the way to go, over 6 mins of close to full throttle and it still came down at storage voltage lol.