PMDG 737 0.00.41
INTRODUCTION
For Simulator Use Only DO NOT DUPLICATE NOVEMBER 2022
ALTERNATE flap system, they are EXTREMELY slow. And you
lose access to the full range in some cases!
• Rudder control inputs are moderated by aerodynamic forces. Full
rudder deflection in even moderate IAS is thus impossible. This Q-
System model facilitates yaw stability and prevents inadvertent
yaw induced roll. Nevertheless, rudder authority is sufficient to
allow for runway alignment (de-crab) or even a sideslip (wing low)
approach even at high cross winds.
Flight Management Computer:
• Unlike the FMC in the PMDG 747 and PMDG 777, the flap
setting/Vref speed combination you select on the APPROACH
REF page is a target speed. The airplane will automatically slow
to this speed as you get closer to your destination.
• All speed restrictions in the 737 FMC are treated implicitly as at-
or-below restrictions. For example, if you have a 300-knot
restriction but your ECON descent speed is 275, the airplane will
cross the restriction at 275, it will not speed up to 300.
NOTE: A message [UNABLE 300 KT AT XXX] will be issued unless the
pilot explicitly enters 300B/ (300 knots at or below). During the descent,
even if you set an AT speed (e.g., 300) that violates monotonic speed (or
speed always decreasing), the FMC will ignore it, but provide a warning.
Fuel Density Model:
• Depending on where you are in the world, the fuel you take on
board will vary in density. For most flights, this does not cause
any issues, but in areas where the density is particularly low, you
may find that the fuel will take up the capacity of the tanks without
reaching the advertised weight values.
• When density is below the level where the tanks can take on a
full fuel load (by weight), the density is displayed in reverse video.
Ground Friction Model:
Beginning back in 2016 with PMDG 747-400 Queen of the Skies
II we have been included an enhanced ground friction model with
PMDG's products. This model more accurately controls the
relationship between the airplane, the runway surface, the
wheels, tires and brakes. The airplane's inertial energy is
constantly evaluated based upon a number of factors in order to
provide a more realistic experience with taxiing, stopping and
turning at low speeds. No longer is it necessary to taxi around
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