Comments by "John Berry" (@user-ud6ui7zt3r) on "This Plane "doesn't exist" - SR-75 Penetrator" video.

  1. ▲▲Black Triangles... We also keep hearing about manmade UFOs in the form of ▲▲ black triangles that hover silently above the ground. Why does the US Military screw-around with detonation pulse engines and scramjets when they supposedly can do ▲▲ black triangles?
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