diff --git a/Aircraft/Generic/autochecklist.nas b/Aircraft/Generic/autochecklist.nas
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+################################################################################
+#
+# Automated Checklists
+#
+# Copyright (c) 2015, Richard Senior
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+################################################################################
+#
+# This script runs the bindings in a sequence of checklists. Typically used
+# to implement autostart or shutdown but can run any checklist sequence at any
+# time. Checklist execution runs each binding where the condition is not yet
+# satisfied and waits until the condition becomes true before moving on. If
+# the condition does not become true within a timeout period, the checklist
+# execution fails.
+#
+# Can also run in no wait mode where items are run in order without waiting
+# for the previous condition to become true. Checklists never timeout or fail
+# in no wait mode but some conditions may remain false.
+#
+# Typical usage:
+#
+# 1. Add this script to <Aircraft>-set.xml:
+#
+#    <nasal>
+#      ... other scripts here
+#      <autochecklist>
+#        <file>Aircraft/Generic/autochecklist.nas</file>
+#      </autochecklist>
+#    </nasal>
+#
+# 2. In the <Aircraft>-set.xml, define a list of checklist indexes to run
+#    as a named sequence.
+#
+#    For example, to run checklists with indexes 0 and 1 for startup and
+#    checklist 9 for shutdown:
+#
+#   <checklists>
+#     <checklist include="Checklists/before-starting-engines.xml"/>
+#     <checklist include="Checklists/start-engines.xml"/>
+#     ... more checklists here
+#     <checklist include="Checklists/parking.xml"/>
+#     <startup>
+#       <index n="0">0</index> <!-- Before starting engines -->
+#       <index n="1">1</index> <!-- Start engines -->
+#     </startup>
+#     <shutdown>
+#       <index n="0">9</index> <!-- Parking -->
+#     </startup>
+#   </checklists>
+#
+# 3. Define a menu item that calls the complete_checklists function with
+#    the name of the checklist sequence you would like to run.
+#
+#    For example:
+#
+#    <item>
+#      <label>Autostart</label>
+#      <binding>
+#        <command>nasal</command>
+#        <script>autochecklist.complete_checklists("startup");</script>
+#      </binding>
+#    </item>
+#
+#    For a no wait checklist execution (which will never fail), pass zero (0)
+#    as the second argument:
+#
+#    autochecklist.complete_checklists(sequence:"startup", wait:0);
+#
+# 4. Optionally, configure automated execution using the following properties.
+#    See comments within the autochecklist_init function for a description.
+#
+#   <checklists>
+#     ...
+#     <auto>
+#       <completed-message>Checklists complete</completed-message>
+#       <startup-message>Running checklists, please wait ...</startup-message>
+#       <timeout-message>Some checks failed.</timeout-message>
+#       <timeout-sec>10</timeout-sec>
+#       <wait-sec>3</wait-sec>
+#     <auto>
+#   </checklists>
+#
+#   Note that messages are not displayed for no wait execution.
+#
+################################################################################
+
+var checklists = nil;
+var auto = nil;
+var active = nil;
+var timeout_sec = nil;
+var timeout_start = nil;
+var wait_sec = nil;
+var completed_message = nil;
+var startup_message = nil;
+var timeout_message = nil;
+
+var autochecklist_init = func()
+{
+    # Root property tree path for checklists
+    #
+    checklists = props.globals.getNode("sim/checklists");
+
+    # Root property tree path for auto checklists
+    #
+    auto = checklists.initNode("auto");
+
+    # Flag to indicate that checklists are being completed automatically.
+    # This can be used in Nasal bindings in the checklists to suppress a
+    # binding when automated execution is in progress, e.g. for checklist
+    # items that display dialogs.
+    #
+    active = auto.initNode("active", 0, "BOOL");
+
+    # Timeout for completion of a checklist item. If the previous condition
+    # is still not satisifed after this timeout, the checklist fails.
+    #
+    timeout_sec = auto.initNode("timeout-sec", 10, "INT");
+    timeout_start = auto.initNode("timeout-start", 0.0, "DOUBLE");
+
+    # If the previous checklist item is not complete, the process waits
+    # this number of seconds before trying again.
+    #
+    wait_sec = auto.initNode("wait-sec", 3, "INT");
+
+    # Messages
+    #
+    completed_message = auto.initNode("completed-message",
+        "Checklists complete."
+    );
+
+    startup_message = auto.initNode("startup-message",
+        "Running checklists, please wait ..."
+    );
+
+    timeout_message = auto.initNode("timeout-message",
+        "Some checks failed. Try completing checklist manually."
+    );
+}
+
+################################################################################
+
+# Announces a message to the pilot
+#
+# @param message: the message to display
+#
+var announce = func(message)
+{
+    setprop("sim/messages/copilot", message);
+    logprint(3, message);
+}
+
+# Resets the timestamp used for checking timeouts
+#
+var reset_timeout = func()
+{
+    timeout_start.setValue(0.0);
+}
+
+# Return true if the timeout period has been exceeded
+#
+var timed_out = func()
+{
+    var elapsed = getprop("sim/time/elapsed-sec") - timeout_start.getValue();
+    return timeout_start.getValue() and elapsed > timeout_sec.getValue();
+}
+
+# Waits for the completion of an item, setting a timestamp for timeouts
+#
+# @param node: the node containing the list of checklist indexes to run
+# @param from: the checklist item node from which to start
+#
+var wait_for_completion = func(node, from)
+{
+    var t = maketimer(wait_sec.getValue(), func {
+        complete(node, 1, from);
+    });
+    t.singleShot = 1;
+    t.start();
+
+    if (!timeout_start.getValue()) {
+        timeout_start.setValue(getprop("sim/time/elapsed-sec"));
+    }
+}
+
+# Automatically complete a set of checklists defined by a series of indexes
+# listed under the node argument. Not intended to be called from outside this
+# script.
+#
+# @param node: the node containing the list of checklist indexes to run
+# @param wait: whether to wait for the preceding binding to complete
+# @param from: the checklist item node from which to start, default nil
+#
+var complete = func(node, wait, from = nil)
+{
+    var previous_condition = nil;
+    var skipping = from != nil;
+
+    foreach (var index; node.getChildren("index")) {
+        var checklist = checklists.getChild("checklist", index.getValue());
+        foreach (var item; checklist.getChildren("item")) {
+            var condition = item.getNode("condition");
+            if (skipping) {
+                if (!item.equals(from)) {
+                    previous_condition = condition;
+                    continue;
+                }
+                skipping = 0;
+            }
+            if (wait) {
+                if (props.condition(previous_condition)) {
+                    reset_timeout();
+                } else {
+                    if (timed_out()) {
+                        var title = checklist.getNode("title").getValue();
+                        announce(title~": "~timeout_message.getValue());
+                    } else {
+                        wait_for_completion(node: node, from: item);
+                    }
+                    return;
+                }
+            }
+            if (!props.condition(condition)) {
+                foreach (var binding; item.getChildren("binding")) {
+                    active.setValue(1);
+                    props.runBinding(binding);
+                    active.setValue(0);
+                }
+            }
+            previous_condition = condition;
+        }
+    }
+    if (wait) {
+        announce(completed_message.getValue());
+    }
+}
+
+################################################################################
+
+# Complete a checklist sequence, typically called from a Nasal binding in a
+# menu, e.g. Autostart, but could be assigned to a controller button or even
+# called from a listener.
+#
+# @param sequence: the name of the checklist sequence to run
+# @param wait: whether to wait for the preceding binding, default 1 (true)
+#
+var complete_checklists = func(sequence, wait = 1)
+{
+    var node = checklists.getNode(sequence);
+    if (node != nil) {
+        if (wait) {
+            announce(startup_message.getValue());
+        }
+        complete(node, wait);
+    } else {
+        announce("Could not find checklist sequence called '"~sequence~"'");
+    }
+}
+
+setlistener("/sim/signals/fdm-initialized", func() {
+    autochecklist_init();
+});
+