On Tuesday, October 1, 2019 at 11:25:27 AM UTC-4, wrote:
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.

The service bulletin was done for liability reasons.
It does fine for moderate aerobatics. Loops, rolls, inverted flight, etc all are within the capability of the ship with a properly trained pilot.
Big terminal velocity dive brakes are a benefit.
It does not snap well.
I have a video someplace of aerobatics shot from the nose back(art student school project).
FWIW
UH