On Sunday, September 29, 2019 at 12:45:20 PM UTC-5, wrote:
Does anyone know if it is safe, assuming you are properly trained in aerobatics,
to perform loops, rolls and inverted flying in a 1-26E?
Glider is rated at +5.3 -3.3 Gs

I have seen people perform loops in them and it is legally a fully aerobatic glider but the service bulleton says that you cannot but I do believe that that was due to people not being trained for how fast the glider accelerates so they would go past Vne and rip a wing off.