diff --git a/airpower/aircraft.py b/airpower/aircraft.py
index 8045db5f..6afa9b16 100644
--- a/airpower/aircraft.py
+++ b/airpower/aircraft.py
@@ -439,13 +439,19 @@ def startmove(self, flighttype, powerap, actions):
     if flighttype not in ["LV", "SC", "ZC", "VC", "SD", "UD", "VD"]:
       raise ValueError("invalid flight type %s." % flighttype)
 
-    # TODO: IDLE power.
-    if not isinstance(powerap, (int, float)) or powerap < 0 or powerap % 0.5 != 0:
-      raise ValueError("invalid power AP %s" % powerap)
     # TODO: Don't assume CL.
     powerchart = self._aircrafttype.powerchart("CL")
-    if powerap == 0:
+    if powerap == "IDLE":
+      powersetting = "IDLE"
+      powerap = 0
+    elif powerap == "NOR" or powerap == 0:
       powersetting = "NOR"
+      powerap = 0
+    elif powerap == "MIL" or (powerap == "AB" and "AB" in powerchart):
+      powersetting = powerap
+      powerap = powerchart[powersetting]
+    elif not isinstance(powerap, (int, float)) or powerap < 0 or powerap % 0.5 != 0:
+      raise ValueError("invalid power AP %s" % powerap)
     elif powerap <= powerchart["MIL"]:
       powersetting = "MIL"
     elif "AB" in powerchart and powerap <= powerchart["AB"]:
@@ -487,6 +493,25 @@ def startmove(self, flighttype, powerap, actions):
       self._fpcarry, self._apcarry, apaltitude.formataltitudecarry(self._altitudecarry)
     ))
 
+    self._log("min speed is %.1f, cruise speed is %.1f, and max speed is %.1f." % ( 
+      self._aircrafttype.minspeed("CL", self._altitudeband),
+      self._aircrafttype.cruisespeed(),
+      self._aircrafttype.maxspeed("CL", self._altitudeband),
+    ))
+    self._log("climb speed is %.1f, dive speed is %.1f, and M1 is %.1f." % ( 
+      self._aircrafttype.climbspeed(),
+      self._aircrafttype.divespeed(self._altitudeband),
+      self._m1(),
+    ))
+
+    # See rule 6.1.
+    if (powersetting == "IDLE" or powersetting == "NOR") and self._speed > self._aircrafttype.cruisespeed():
+      self._log("insufficient power above cruise speed.")
+      self._powerap -= 1.0
+    if powersetting == "IDLE" and self._speed > 0.5:
+      self._log("reducing speed by 0.5 as the power setting is idle.")
+      self._speed -= 0.5
+
     m1 = self._m1()
     if self._speed >= m1:
       speed = "%.1f (SSS)" % self._speed
@@ -560,8 +585,9 @@ def _endmove(self):
       self._log("total    APs = %+.1f with %+.1f carry = %+.1f." % (ap, self._apcarry, ap + self._apcarry))
       ap += self._apcarry
 
-      initialspeed = self._speed
+      # See rule 6.2.
       # TODO: rates for RA aircraft.
+      initialspeed = self._speed
       if ap < 0:
         aprate = -2.0
       elif initialspeed >= self._m1():
@@ -573,6 +599,13 @@ def _endmove(self):
       else:
         self._speed -= 0.5 * (ap // aprate)
       self._apcarry = ap % aprate
+
+      # See rule 6.2.
+      if self._speed <= 0:
+        self._speed = 0
+        if self._apcarry < 0:
+          self._apcarry = 0
+
       if self._speed != initialspeed:
         self._log("speed changed from %.1f to %.1f." % (initialspeed, self._speed))
       else:
diff --git a/airpower/aircrafttype.py b/airpower/aircrafttype.py
index 6be41bac..3f5226b5 100644
--- a/airpower/aircrafttype.py
+++ b/airpower/aircrafttype.py
@@ -6,15 +6,17 @@ def __init__(self, name):
   def powerchart(self, configuration):
     if self._name == "F-80C":
       return {
-        "CL" : { "MIL": 1.0, },
-        "1/2": { "MIL": 1.0, },
-        "DT" : { "MIL": 1.0, },
+        "CL"  : { "IDLE": 0.5, "NOR": 0.0, "MIL": 1.0, "SPBR": 0.5, },
+        "1/2" : { "IDLE": 0.5, "NOR": 0.0, "MIL": 1.0, "SPBR": 0.5, },
+        "DT"  : { "IDLE": 0.5, "NOR": 0.0, "MIL": 1.0, "SPBR": 0.5, },
+        "FUEL": { "IDLE": 0.0, "NOR": 0.5, "MIL": 1.0, }
       }[configuration]
     elif self._name == "F-84E":
       return {
-        "CL" : { "MIL": 1.0, },
-        "1/2": { "MIL": 0.5, },
-        "DT" : { "MIL": 0.5, },
+        "CL"  : { "IDLE": 0.5, "NOR": 0.0, "MIL": 1.0, "SPBR": 0.5, },
+        "1/2" : { "IDLE": 0.5, "NOR": 0.0, "MIL": 0.5, "SPBR": 0.5, },
+        "DT"  : { "IDLE": 0.5, "NOR": 0.0, "MIL": 0.5, "SPBR": 1.0, },
+        "FUEL": { "IDLE": 0.0, "NOR": 0.5, "MIL": 1.0, }
       }[configuration]    
 
   def turndragchart(self, configuration):
@@ -30,3 +32,61 @@ def turndragchart(self, configuration):
         "1/2": { "TT": 1.0, "HT": 2.0, "BT": 2.0, },
         "DT" : { "TT": 1.0, "HT": 2.0, "BT": 2.0, },
       }[configuration]
+
+  def minspeed(self, configuration, altitudeband):
+    if altitudeband == "UH":
+      altitudeband = "EH"
+    if self._name == "F-80C":
+      return {
+        "CL" : { "LO": 1.5, "ML": 1.5, "MH": 2.0, "HI": 2.0, "VH": 2.5, "EH": 0.0, },
+        "1/2": { "LO": 1.5, "ML": 2.0, "MH": 2.0, "HI": 2.5, "VH": 2.5, "EH": 0.0, },
+        "DT" : { "LO": 2.0, "ML": 2.0, "MH": 2.5, "HI": 2.5, "VH": 0.0, "EH": 0.0, },
+      }[configuration][altitudeband]
+    elif self._name == "F-84E":
+      return {
+        "CL" : { "LO": 1.5, "ML": 1.5, "MH": 2.0, "HI": 2.5, "VH": 2.5, "EH": 0.0, },
+        "1/2": { "LO": 1.5, "ML": 2.0, "MH": 2.0, "HI": 2.5, "VH": 2.5, "EH": 0.0, },
+        "DT" : { "LO": 2.0, "ML": 2.0, "MH": 2.5, "HI": 0.0, "VH": 0.0, "EH": 0.0, },
+      }[configuration][altitudeband]
+
+  def maxspeed(self, configuration, altitudeband):
+    if altitudeband == "UH":
+      altitudeband = "EH"
+    if self._name == "F-80C":
+      return {
+        "CL" : { "LO": 5.5, "ML": 5.5, "MH": 5.0, "HI": 4.5, "VH": 4.0, "EH": 0.0, },
+        "1/2": { "LO": 5.5, "ML": 5.0, "MH": 4.5, "HI": 4.5, "VH": 4.0, "EH": 0.0, },
+        "DT" : { "LO": 5.0, "ML": 4.5, "MH": 4.5, "HI": 4.0, "VH": 0.0, "EH": 0.0, },
+      }[configuration][altitudeband]
+    elif self._name == "F-84E":
+      return {
+        "CL" : { "LO": 6.0, "ML": 6.0, "MH": 5.5, "HI": 5.5, "VH": 5.5, "EH": 0.0, },
+        "1/2": { "LO": 5.5, "ML": 5.5, "MH": 5.5, "HI": 5.0, "VH": 5.0, "EH": 0.0, },
+        "DT" : { "LO": 5.5, "ML": 5.0, "MH": 5.5, "HI": 0.0, "VH": 0.0, "EH": 0.0, },
+      }[configuration][altitudeband]
+  
+  def cruisespeed(self):
+    if self._name == "F-80C":
+      return 4.0
+    elif self._name == "F-84E":
+      return 4.5
+
+  def climbspeed(self):
+    if self._name == "F-80C":
+      return 3.0
+    elif self._name == "F-84E":
+      return 3.5
+
+  def divespeed(self, altitudeband):
+    if altitudeband == "UH":
+      altitudeband = "EH"
+    if self._name == "F-80C":
+      return { "LO": 6.5, "ML": 6.5, "MH": 6.5, "HI": 6.5, "VH": 6.0, "EH": 0.0, }[altitudeband]
+    elif self._name == "F-84E":
+      return { "LO": 7.0, "ML": 7.0, "MH": 6.5, "HI": 6.5, "VH": 6.0, "EH": 0.0, }[altitudeband]
+
+  def ceiling(self, configuration):
+    if self._name == "F-80C":
+      return { "CL": 45, "1/2": 40, "DT": 35, }[configuration]
+    elif self._name == "F-84E":
+      return { "CL": 41, "1/2": 36, "DT": 30, }[configuration]