Radar Required
A term displayed on charts and approach plates and included in
FDC NOTAMs to alert pilots that segments of either an instrument
approach procedure or a route are not navigable because of either
the absence or unusability of a NAVAID. The pilot can expect to be
provided radar navigational guidance while transiting segments
labeled with this term.
Aero-Linx: HAYABUSA
(MUSES-C)
The Hayabusa (the original code name was MUSES-C) engineering
spacecraft was designed to acquire samples from the surface of
near-Earth asteroid 25143 Itokawa (1998 SF36) and return them to
Earth. The main objectives of the mission were to demonstrate the
performance of various technical items such as ion engines,
autonomous navigation, sampling of the asteroid's surface, and
high-speed reentry into the Earth's atmosphere...
"The system is transparent to the pilot... It is
like landing with the brake pedals pushed forward. Pilots activate
the autobrake function during approach by engaging a button located
near the landing gear controls. Braking begins as soon as the main
landing gear touches down while the nose gear is still off the
ground, which is 1 to 1.2 seconds earlier than with the normal
procedure. As soon as the pilot pushes the pedals on the ground,
the autobrake disengages and the pilot brakes normally. Passengers
will feel the same deceleration (0.4g) as in a conventional high
performance landing."
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