def test_02(self):
# 400 kt at 30000, temp -70 deg F
# truth value from NASA RP 1046 + correction for non-standard temp
Value = A.cas2tas(400, 30000, -70, temp_units='F')
Truth = 586.266
self.assertLessEqual(RE(Value, Truth), 3e-5)
def test_01(self):
# 400 kt at 30000, std temp
# truth value from NASA RP 1046
Value = A.cas2tas(400, 30000)
Truth = 602.6
self.assertLessEqual(RE(Value, Truth), 3e-5)
def setAS_Data(self, AS_Data, PA_Data, OAT):
if self._Mode_Indicator == 1:
self._AS_Data_Box = int(airspeed.cas2tas(AS_Data, PA_Data, OAT))
elif AS_Data != self._AS_Data_Box and self._Mode_Indicator != 1:
if self._Mode_Indicator == 0:
self._AS_Data_Box = int(AS_Data)
elif self._Mode_Indicator == 2:
self._AS_Data_Box = int(AS_Data)
self.redraw()
def setAS_Data(self, AS_Data, PA_Data, OAT):
if self._Mode_Indicator == 1:
self._AS_Data_Box = int(airspeed.cas2tas(AS_Data, PA_Data, OAT))
elif AS_Data != self._AS_Data_Box and self._Mode_Indicator != 1:
if self._Mode_Indicator == 0:
self._AS_Data_Box = int(AS_Data)
elif self._Mode_Indicator == 2:
self._AS_Data_Box = int(AS_Data)
self.redraw()
def test_Vstall(self):
t0 = time.clock()
print "time start= ", t0
atmosphere = Atmosphere()
earth = Earth()
print '==================== Stall Speed according to airport field elevation ==================== ' + time.strftime(
"%c")
acBd = BadaAircraftDatabase()
aircraftICAOcode = 'B743'
if acBd.read():
if (acBd.aircraftExists(aircraftICAOcode)
and acBd.aircraftPerformanceFileExists(
acBd.getAircraftPerformanceFile(aircraftICAOcode))):
print '==================== aircraft found ==================== ' + time.strftime(
"%c")
aircraft = BadaAircraft(
ICAOcode=aircraftICAOcode,
aircraftFullName=acBd.getAircraftFullName(
aircraftICAOcode),
badaPerformanceFilePath=acBd.getAircraftPerformanceFile(
aircraftICAOcode),
atmosphere=atmosphere,
earth=earth)
aircraft.dump()
print '==================== Airport database ==================== ' + time.strftime(
"%c")
airportsDB = AirportsDatabase()
assert airportsDB.read()
for airport in airportsDB.getAirports():
print '============' + airport.getName() + ' ============'
#print airport
aircraft = BadaAircraft(
ICAOcode=aircraftICAOcode,
aircraftFullName=acBd.getAircraftFullName(aircraftICAOcode),
badaPerformanceFilePath=acBd.getAircraftPerformanceFile(
aircraftICAOcode),
atmosphere=atmosphere,
earth=earth)
print 'airport field elevation= {0:.2f} meters'.format(
airport.getFieldElevationAboveSeaLevelMeters())
CAS = aircraft.computeStallSpeedCasKnots()
print 'V stall Calibrated AirSpeed= {0:.2f} knots'.format(CAS)
TAS = cas2tas(
cas=CAS,
altitude=airport.getFieldElevationAboveSeaLevelMeters(),
temp='std',
speed_units='kt',
alt_units='m',
temp_units=default_temp_units,
)
print 'V stall True AirSpeed= {0:.2f} knots'.format(TAS)