Huntsville, AL--NASA and Lockheed Martin have announced
restructuring of the X-33 reusable spaceplane demonstrator program. The vehicle,
which was previously slated to make its first flight this year, won't liftoff
now until 2003 (see Design News 9/6/1999, p. 82 or www.manufacturing.net/magazine/dn/archives/1999/dn0906.99/feature1.html
for technology details).
The vehicle's carbon-composite liquid-hydrogen fuel tank failed
load testing last November due to microcracks in its structure. The vehicle is
currently about three-quarters completed and 95% of its components have been
built and delivered. Except for a new aluminum hydrogen tank, which is being
designed, the demonstrator is to be completed by the end of this year. Gene
Austin, NASA program manager at the Marshall Space Flight Center says, "The
aluminum tank design still permits us to demonstrate the technologies for a
reusable, single-stage, next-generation vehicle."
The revamped program calls for greater emphasis on mission safety
and additional ground demonstration of critical technology prior to first
flight. No additional NASA funds are needed through March 2001. Lockheed Martin
will compete for the additional funding needed to complete the project under the
agency's Space Launch Initiative program.
A middle school team from Rochester, Mich., has again nabbed the grand prize in the annual international Future City Competition, which drew students from 37 regions of the United States, as well as from England and China.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.