Supersonic Jet
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* It is not yet time for a supersonic jumbo jet (“NASA, Boeing Abandon Supersonic Jetliner Project,” Feb. 6). Research and development without commercial application in the foreseeable future is not what Boeing should be doing.
NASA needs to continue the development of the space plane for low-cost delivery of cargo to orbit. When that technology is functional and costs are known, an informed decision can be made about how to build high-speed, long-range, high-capacity commercial passenger aircraft.
JIM KETCHAM
Malibu
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