6.06 E6B 1: Flight calculations : 40 minutes 6.06 E6B 1: Flight calculations References:
FTGU pg 199
Online Emulator: http://www.csgnetwork.com/e6bcalc.html BC Online Ground School: Navigation
Slide 2 : E6B Class #1
Distance Conversions
Time, Speed, Distance
Fuel calculations
E6B Class #2
Wind Correction
Ground Speed
E6B Class #3
Density Altitude
True airspeed, Indicated airspeed
Slide 3 : MTPs
The E6B flight computer
Calculations
Distance Conversions
Time, Speed, Distance
Fuel calculations
Slide 4 : “Wiz Wheel”
Used for
Quick calculations during flight
Determining the winds effect on an aircraft
All calculations may be done without a flight computer
Slide 5 : Types of Flight computers
E6B
CR3
Electronic
Slide 6 : E6B – It has 2 sides Calculations Wind Calculations
Slide 7 : Type of calculations
Conversions
Distance
Quantity
Temperature
Speed (CAS, TAS)
Weight
Calculation
Time, Speed, Distance
Fuel, GPH, Time
Slide 8 : Vocabulary
Inner Scale
(time, IAS)
Outer Scale
(distance, fuel, groundspeed)
Rate arrow
Slide 9 : Scale: The numbers on the flight computer range from 10 to 90.
These can represent any number
Ex. 12 can represent:
0.12, 1.2, 12, 120…
NOTE: when doing calculations do some mental math!!!! Does the number you get make sense
Slide 10 : Conversions
Distance
Manually
KM to SM *.62
NM to SM *1.15
SM to NM *.87
Slide 11 : Example #1
61 sm is equal to ____NM
61*0.87 = 53
OR
Find 61 on the inner wheel
Turn 61 so it is lined up with the STAT miles on the outer scale
Read the number under NAUT miles = 53
Slide 12 : Example #2
100 nm is equal to ___ SM
100nm * 1.15 = 115sm
Find 100 on the inner wheel
Turn 100 so it is lined up with the NAUT miles on the outer scale
Read the number under STAT miles = 115
Slide 13 : Your turn: Convert the following
75 KM = _____ SM
40 NM = _____ SM
90 SM = ______ NM
25 SM = ______ KM
120 NM = _____ SM KM to SM *0.62
SM to KM *1.60
NM to SM *1.15
SM to NM *0.87 47
46
78
40
138
Slide 14 : Time (T), Speed (V), Distance (D) calculations
How long will it take to go 40 nm while travelling 75 knots?
T = D/V T= 40/75 T = .53 hr
= .53*60
= 32 min A. Finding Time
Slide 15 : Turn the inner dial so the RATE ARROW lines up with the speed on the outer scale (75kts)
Find the distance on the outer scale (40nm)
Read the time on the inner scale = 32 min
Slide 16 : Turn the inner dial so the RATE ARROW lines up with the speed on the outer scale (120kts)
Find the distance on the outer scale (140nm)
Read the time on the inner scale = 1hr 10 min V = 120kt, D= 140nm, T = ?
Slide 17 : B. Finding Distance
Just like how you can rearrange the triangle, you can solve all parts of the triangle on the wheel
How far will you travel in 35 minutes travelling at 75 kts?
D= V*T D=75*(35/60) D=44nm
Slide 18 : Line up the rate arrow to the speed on the outer dial (75 kt)
Find the time on the inner dial (35)
Read the distance across from the time on the outer dial (44 nm)
Slide 19 : C. Finding speed
V = D/T
What is your speed if you have travelled 10nm in 8 minutes?
V= 10/(8/60)
= 76kts
Slide 20 : Find your time on the inner dial (8min).
Line it up with your distance on the outer dial (10nm)
Find the rate arrow and read off the speed on the outer dial (76kt)
Slide 21 : Your turn: Solve the following
How far will you travel in 45
minutes at 90 mph?
2. How fast are you travelling if
you cover 75 nm in 1.5hrs?
How long does it take to fly
100 nm if you are flying at 85 kts? Remember: Inner dial = time, outer dial = distance, rate arrow = speed 68 sm
50 kts
1:10
Slide 22 : Fuel calculations are exactly like time speed and distance calculations
Time = Time
Speed = Fuel consumption rate
Distance = Total fuel
Slide 23 : Your turn: Solve the following
How many gallons of fuel do you need to travel for 1.75 hours with a burn rate of 15gph?
2. What is your fuel consumption rate if you have travelled for 50 minutes and have burned 8 gallons of fuel?
How long can you fly if you are burning 12gph and have 40 gallons of fuel? Remember: Inner dial = time, outer dial = total fuel, rate arrow = fuel consumption rate 26 gal
9.6gph
3:20
Slide 24 : 1. 107 NM = ______ SM
2.V =80 kt, D = 300nm, T= _____
3. V =105kt, T = 43min, D= _____
4. T= 9min, D= 15nm, V = ______
5. V= 7gph, T= 30min, D= ______
6. V=9gph, D=38gal, T=_______
7. T=1:15, V=10.4, D= ______ 123sm
225min
75nm
100kt
3.5gal
253min
8.3gph Remember: Inner dial = time, outer dial = distance, rate arrow = speed
Slide 25 : There are many more calculations that the E6B flight computer can solve but these are the main ones you’ll see.
1. Distance conversions
2. Time, Speed, Distance Calculations
3. Fuel Calculations
Slide 26 : Homework:
Create some problems on your own to solve
Use the online emulator or do your own math to double check your answers
Be completely comfortable doing the types of problems we covered for next class
If you need more guidance watch you tube videos, there are LOTS out there
Practise: http://www.gleim.com/aviation/computerinstructions.php