Helicopters with a rigid rotorhead can perform aerobatics. To build it, the production company purchased a French Gazelle (Aerospatiale) helicopter, which can fly at speeds of 200 MPH, and added several prop gimmicks to it. To get a round loop you alter the pull through the four quarters, on top, I put in about three of four seconds of forward push, or negative G, on the airplane to "float" it over the top. The Lynx is an agile helicopter, capable of performing loops and rolls, and of attaining high speeds. Buy and sell planes and helicopters online at GlobalPlaneSearch.com. The agility of the type led to its use as an aerial display aircraft, having been operated by the Blue Eagles and Black Cats helicopter display teams. It is quite possible to get a perfectly round loop, it just isn't easy. Search aircraft for sale for free! Blue Thunder is the helicopter in the 1980s American titular film and television series.The aircraft itself was a modified Aérospatiale Gazelle helicopter.. To film Blue Thunder, the producers employed two examples of the French-made Aérospatiale SA-341G Gazelle light utility helicopter, serial numbers 1066 and 1075, both built in 1973. The Gazelle is so maneuverable that the stunt pilots were able to effectively reproduce the 360° loop which Scheider is … 69 ex-Military/Warbird Helicopters for Sale Worldwide.