Question: "Viperjet canopy ok ?"
Answer: "Absolutely NO !"

I have broken 3 canopy glasses for the Viperjet, the one I currently have, is also "sucked" in when the engine goes at full throttle, but not enough (yet!) to crush it. I cut out the airbrakes on the bottom of the fuselage (the small rectangles)

The material used is just so thin (0.35 mm), just the slightest touch with a finger/hand, and it will destroy/crack !