Not exact matches
ARPA - E is a new Department of Energy organization
modeled after the Defense Advanced Research Projects Agency, the defense agency that gave us the Internet, stealth
aircraft, and many
other technological breakthroughs.
Thus, depending on
aircraft model, runway length and
other factors, at some point a packed plane may be unable to take off safely if the temperature gets too high.
This question - and
others - will be answered as students create physical and conceptual
models for
aircraft in flight as they learn the science behind this engineering feat.
The XWB in the
aircraft's name stands for Extra Wide Body, as it's larger than some of the
other wide - body
models from the company.
A national center is appropriate to host major super computers, data centers, instrumented
aircraft, radars and
other instruments, community weather and climate
models, and teams of scientists working together on large problems that are difficult to do in single universities.
In
other words these
models have now become a virtual wind tunnel, no major
aircraft manufacturer designs an
aircraft without substantial input from CFD, the difference being that in the 80's we used main - frames Crays and the like, then minis and now it can done on laptops.
that all owners of
model aircraft, small unmanned
aircraft or drones, or
other RC
aircraft weighing between 0.55 and 55 pounds need to register online before
The Canadian Aviation Regulations, authorized under the Aeronautics Act, define a UAV as a «power driven
aircraft,
other than a
model aircraft, that is operated without a flight crew member on board.»
Since December 2015, the Federal Aviation Administration (FAA) mandates that all owners of
model aircraft, small unmanned
aircraft or drones, or
other RC
aircraft weighing between 0.55 and 55 pounds need to register online before flying their drones.
Furthermore, the Act states that once the «
model aircraft» is launched for any reason
other than recreational, it is considered an unmanned air vehicle (UAV).