1. “Teaching the Science, Inspiring the Art, Producing Aviation Candidates!”
Navigating With The E6-BNavigating With The E6-B
Whiz Wheels Make Whiz Kids
Written for the Notre Dame Pilot Initiative
By the Pilots of the University of Notre Dame
3. Swiss Army KnifeSwiss Army Knife
Cut electrical wires during fire or splicing frayed wires
Cutting the ribbon on a gift plane
Cutting off your seat harness if you need to bail out
Use the magnifying glass to better read sectionals
Use it to bang on an indicator if you have them
Tightening screws
Amputating your leg after a crash
To get a knob unstuck (radios or dipstick)
Cut a parachute line after arriving on the ground
Open the ELT hatch to manually activate the ELT
Unclog static port
Intimidating other pilots while waiting to takeoff
Keep away hijackers, go for the jugular
N D P I
5. Slide RulesSlide Rules
Time is always on the inside scale
Distance or Gallons is always on the
outside scale
http://www.asa2fly.com/files/support/E6B_Manual.pdf
13. Altitude & AirspeedAltitude & Airspeed
AdjustmentsAdjustments
You can find Density Altitude & True
Airspeed
Density Altitude is the pressure
altitude corrected for temperature
(what the airplane really “feels”)
True Airspeed is the airspeed
corrected for altitude and
temperature (how fast the airplane is
moving through the less dense air)
14. 4000 feet
20 degrees
above std
15+20-8=
27 degrees C
= 80 degrees
F
Liftoff
60KIAS
? DA
? TAS
Set Temp & Alt
Read
Density
Alt
DA=6000
TAS=66
DA=6000
TAS=126
15. Wind CalculationsWind Calculations
Can find groundspeed and
wind correction angle given
wind data (Focus in this
course)
Can find wind data given
groundspeed and wind
correction angle
Can solve two step
problems involving finding
time to station knowing TAS
& Wind
TH
TAS
WD
WV
TC
GS
Time is always on the inside scale and distance or gallons on the outside scale
Show them the parts of the E6-B
Like we said about Celestial navigation, it never fails.
30 Miles in 8.5 Minutes (Note that Seconds matter especially over distances less than 30 miles
To get your groundspeed (your True Airspeed plus the wind effect), go to the 60 index and read above = 210 Knots
Ironically moving the decimal point to the right one place gives you 2100 Knots, the world speed record held by……….an SR-71 crew. They flew almost 3000 miles across the country in less than 90 minutes
By keeping the 60-index at 210 we can read how many miles we will be able to travel.
Finding 4.5 hours or 270 minutes on the bottom scale, we read 93 which when corrected for decimal places means a range of 930 miles (NY-CHI)
Time is always on inside scale whether doing TSD or GPH problems
Fuel Status is not good here. When is the only time that the gauges must be accurate? Empty.
Cessna gauges are notorious for being wrong.
10 GPH is a safe estimate for most training aircraft
Put 9.5 over the 60-index and read time below 13 gallons (82 minutes)
Only other useful calculation would be calculating fuel burn after a flight given gallons of fuel and time
High Density Altitudes are caused by being high, hot, and humid and hurt airplane performance
Since the air is thinner at altitude the airspeed indicator thinks you aren’t moving as fast as you really are.
At 35000 feet, the ASI may indicate 350 knots but in reality you are traveling over 650 mph through space.
TAS = speed over the ground with no wind
So let’s say that you are at 4000 feet at 20 degrees above standard temperature (2 deg C per 1000 feet) = 15+20-8= 27 deg C & you lift off at 60 knots in Archer 11ND…
What is your density altitude and true airspeed?
Same Problem, but think of it as cruise flight with indicated airspeed 115 Knots. (DA=Same; TAS=126)
Students Follow along
Put Magnetic Wind (Given in True) beneath the True Index(270). Winds are always from!
Put a dot representing wind speed that many knots up from wherever the gromet hole is.(30)
Rotate the inner disk so that the Magnetic course is under the True Index(240)
The dot has now rotated, so put it on your TAS arc (126 from previous slide)
Read GS under grommet and Wind Correction Angle in degrees.
+7 degrees / -27 knots