<?xml version="1.0" encoding="UTF-8" ?>

<PropertyList>

	<name>Landing</name>
	<description>This tutorial starts you on approach for runway 28L at San Francisco International Airport. You will learn how to land properly, making use of the ground spoilers and thrust reversers.</description>
	<timeofday type="string">afternoon</timeofday>
	<presets>
		<airport-id>KSFO</airport-id>
		<runway>28L</runway>
		<on-ground type="bool">false</on-ground>
		<latitude-deg>-9999</latitude-deg>
		<longitude-deg>-9999</longitude-deg>
		<airspeed-kt>180</airspeed-kt>
		<altitude-ft>3000</altitude-ft>
		<glideslope-deg>3</glideslope-deg>
		<offset-distance-nm>8</offset-distance-nm>
	</presets>

	<targets>
		<runway>
			<longitude-deg>-122.3589</longitude-deg>
			<latitude-deg>37.61191</latitude-deg>
		</runway>
	</targets>

	<init>
		<set>
			<property>controls/flight/flaps</property>
			<value>1</value>
		</set>
		<set>
			<property>controls/gear/brake-parking</property>
			<value type="bool">false</value>
		</set>
		<set>
			<property>controls/gear/gear-down</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/lighting/nav-lights</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/lighting/beacon</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/lighting/logo-lights</property>
			<value type="bool">false</value>
		</set>
		<set>
			<property>controls/lighting/wing-lights</property>
			<value type="bool">false</value>
		</set>
		<set>
			<property>controls/lighting/taxi-lights</property>
			<value type="bool">false</value>
		</set>
		<set>
			<property>controls/lighting/landing-lights[0]</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/lighting/landing-lights[1]</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/lighting/landing-lights[2]</property>
			<value type="bool">true</value>
		</set>
		<set>
			<property>controls/engines/engine[0]/thrust-mode</property>
			<value>0</value>
		</set>
		<set>
			<property>controls/engines/engine[1]/thrust-mode</property>
			<value>0</value>
		</set>
		<set>
			<property>instrumentation/nav[0]/frequencies/selected-mhz</property>
			<value>109.55</value>
		</set>
		<nasal>
			<script><![CDATA[
				CRJ700.instastart();
			]]></script>
		</nasal>
	</init>

	<step>
		<message>In this tutorial, we will learn how to perform a landing in a CRJ700.</message>
	</step>

	<step>
		<message>First, let's go over the devices used during a landing. The CRJ700 has 3 ways to slow
down after touchdown- thrust reversers, ground spoilers, and wheel brakes.</message>
	</step>

	<step>
		<message>The thrust reversers direct air flow from the engines forward to slow the aircraft
down. When armed, they will deploy using the Delete key.</message>
	</step>

	<step>
		<message>The ground spoilers are flaps on the wing that deploy upwards on touchdown to mitigate
lift. On the CRJ700, they are automatically controlled by the flight computer. However, you can use the
"ground lift dumping" switch on the pedestal to manually arm or disarm them.</message>
	</step>

	<step>
		<message>The wheel brakes are regular brakes on the wheels. They are operated using the B key
or a button on your joystick.</message>
	</step>

	<step>
		<message>Before we touch down, arm the thrust reversers by pressing Ctrl-Delete, or use the
thrust reverser switches on the pedestal.</message>
		<exit>
			<condition>
				<and>
					<property>controls/engines/engine[0]/reverser-armed</property>
					<property>controls/engines/engine[1]/reverser-armed</property>
				</and>
			</condition>
		</exit>
	</step>
	<step>
		<message>Now just enjoy the descent and keep the aircraft on a stable 140-knot glideslope.
Aim for a touchdown speed of about 130 knots. You may use the autopilot's approach function,
but be sure to disengage it before touchdown, as the CRJ700 is not equipped with autoland!</message>
		<exit>
			<condition>
				<or>
					<property>gear/gear[1]/wow</property>
					<property>gear/gear[2]/wow</property>
				</or>
			</condition>
		</exit>
	</step>

	<step>
		<message>Now slowly and gently bring the nose down. Then press Delete to engage the thrust
reversers. Bring the throttles about halfway up- not all the way, because that will damage
the engines.</message>
		<exit>
			<condition>
				<and>
					<property>controls/engines/engine[0]/reverser</property>
					<property>controls/engines/engine[1]/reverser</property>
				</and>
			</condition>
		</exit>
	</step>

	<step>
		<message>At 60 knots, disengage reverse thrust by bringing the throttles back to idle
and pressing Delete again.</message>
		<exit>
			<condition>
				<and>
					<not>
						<property>controls/engines/engine[0]/reverser</property>
					</not>
					<not>
						<property>controls/engines/engine[1]/reverser</property>
					</not>
					<less-than>
						<property>instrumentation/airspeed-indicator/indicated-speed-kt</property>
						<value>60</value>
					</less-than>
				</and>
			</condition>
		</exit>
	</step>

	<step>
		<message>Turn off the runway and come to a complete stop.</message>
		<exit>
			<condition>
				<less-than>
					<property>velocities/groundspeed-kt</property>
					<value>1</value>
				</less-than>
			</condition>
		</exit>
	</step>

	<end>
		<message>Congratulations, you have made a successful landing!</message>
	</end>

</PropertyList>
