Windshear Avoidance Flying - Honeywell IntuVue RDR-7000 Pilot's Manual

IntuVueRDR-7000 Weather Radar Pilot's Guide

WINDSHEAR AVOIDANCE FLYING

The air shaft of a microburst creates problems for aircraft for two
reasons. The first problem is due to the downward air movement.
Since the aircraft is flying within the air mass, as the air mass
plummets earthward, so does the aircraft. Second, the lift that is
generated by the wing is related to the relative velocity of air traveling
over the wing. If the air velocity suddenly changes, so does the lift.
When the lift is reduced, the aircraft descends. As an aircraft enters a
microburst, depending on the point of entry, it will experience at least
one of these conditions and most probably both.
The key to surviving a microburst is to enter it at a high enough
aircraft energy state (high altitude and fast airspeed). The RDR-7000
system provides a warning prior to encountering the windshear,
significantly improving the chances of surviving the encounter.
MICROBURST ENCOUNTER EXAMPLE
Principles of Weather Radar Use D201911000094
56 Rev 0, Feb 2020