PI-135 OPERATOR’S MANUAL
108
Icing factor is defi ned as a decrease in lift, an increase in
drag, and an increase in weight.
Icing factor: 100% = 50% less lift / 40% more drag / 20%
more weight
Notice that Pitot Tube icing is NOT part of the icing factor
equation. Pitot Tube icing is actually controlled separately
on the MALFUNCTIONS Page. This sep a ra tion of control
is intentional. Although Pitot Tube ic ing is often coincident
with structural icing, structural icing can be subtler to reveal
itself (initially). In most instances the onset of Pitot Tube
icing is more ap par ent and thus more easily recognizable.
One form of Pitot Tube icing is readily identifi ed by a rather
quick loss of airspeed in di ca tion. Airframe icing MAY be a
bit harder to detect initially depending on accretion rate,
icing type, etc.
NOTE: Active METAR does NOT modify the chosen Icing
Settings. You still have to ENABLE or EN FORCE Icing
manually.
SAVING & LOADING METEO FILES
The SAVE and LOAD buttons next to Meteo state are
ex treme ly pow er ful. Let’s say you have set up a weath er
sce nar io on the METEO Page. You get it just exactly the
way you want it with all the pa ram e ters set, but you would
also like to save this Meteo “state” for fu ture use. Sim ply
click on the SAVE but ton to open the Save Meteo fi les
dialog box.
Type a name in the “File name:” box then click Save to
com plete the op er a tion. To load this Meteo state (or any
other) in the fu ture, just click on the LOAD button to open
the Open Meteo fi les di a log box. Se lect a Meteo state
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