31. The NASA study is just one of several research programs under way on the supersonic jet . 32. But Branson's bid to operate the world's only supersonic jet now appears unlikely to take off. 33. Rising costs led BA to retire the supersonic jet last week after 27 years of commercial service. 34. Why did the supersonic jet catch fire? 35. Circular supersonic jets also generate screech tones. 36. The solution leaves the tube as a supersonic jet or spray of very small droplets in solvent vapor. 37. The supersonic jet -set has been bumped. 38. If you were flying in a supersonic jet which slowed down by 20mph, would you notice the difference? 39. During the 1973 war he commanded a squadron of F4-Phantoms, the first American supersonic jets acquired by Israel. 40. For the French, the famed supersonic jet shared a glamorous stage with champagne, the Cannes film festival, and truffles.
