Nav 34 - Integrated Nav Computers

Question 1

What are the advantages of Integrated Navigation Computers?

Answer 1

Redundancy, other system to use if a system is lost
Accuracy check between computers
Different sources of information used to calculate navigation solution
Ability to use strengths of one system to offset weaknesses of another
Use one system for calculation while other navigates

Question 2

What are the disadvantages of Integrated Navigation Computers?

Answer 2

Programming multiple computers
Determining which computer is most accurate
Integrated solution effected by the drift, errors, jamming, failures of a system

Question 3

What is the Integrated Nav Sequence of Events?

Answer 3

Takeoff
Calculate ETAs
Conduct EOC check
TOC and Level off (fuel analysis)
Hourly systems check

Question 4

What criteria must be met to calculate ETAs?

Answer 4

Cleared on course;
Abeam navaid/ aerodrome; and
Above the 100 nm safety altitude, or when safely able if not flying above 100 nm safe altitude

Question 5

Who passes ramp time (take-off + 3.0 hrs) to pilots?

Answer 5

Lead

Question 6

What is the first systems check?

Answer 6

Established On Course check

Question 7

What does the Established On Course check confirm?

Answer 7

Accuracy of navigation computers and which will be the primary source of navigation.

Question 8

When must you wait until to start the EOC check?

Answer 8

Until the aircraft is +/- 30° from the on course and above safety altitude

Question 9

What is the EOC Check Procedure?

Answer 9

Hold computers (DID or Px hold)
Log the GPS and INS positions
Plot both GPS and INS on map, annotate with the time positions were taken
Measure distance between plotted GPS and INS
If INS is within 5nm of GPS, no update required. Outside 5nm, update required.
Log the number of tracking and visible satellites
Log and plot computers wind and compare to planned. Adjust if significantly different
Log G/S and DA from primary computer
Log Doppler G/S and DA and compare to computer information

Question 10

Regarding the EOC Check Procedure, when will the INS need to be updated?

Answer 10

If the INS is within 5nm of GPS, no update required

If the INS is outside 5nm, update required.

Question 11

Regarding the EOC Check Procedure, when shall GPS be the primary navigation computer? When shall it not?

Answer 11

If 3 or more satellites are tracked, GPS shall be the primary navigation computer.

If 2 or less satellites are being tracked, the INS shall be the primary

Question 12

What analysis should be conducted during the level off check?

Answer 12

A fuel analysis

Question 13

After a fuel analysis is complete, what should the analysis be compared to?

Answer 13

Compared to the supplied MilPlanner / CFPS

Question 14

What are the three hourly requirements that ACSO students are responsible for?

Answer 14

Fuel analysis
Systems check (same as EOC check)
Position reports

Question 15

Navaids are another enroute responsibility, Navaids should be?

Answer 15

Diversified (don't pick the same one for VOR 1 & 2)
In range
Geographically separated (in different locations from the plane itself

Question 16

When can the Lead calculate ETAs?

Answer 16

Cleared on course;
Abeam navaid/ aerodrome; and
Above 100nm safe altitude, or when safely able if not flying above the 100 nm safe altitude

Question 17

What is the purpose of an EOC check?

Answer 17

Confirms accuracy of navigation computers and which will be the primary source of navigation.

Question 18

When can you start your EOC check?

Answer 18

Do not start until aircraft is +/- 30° from the on course and above safety altitude

Question 19

What does the Lead say to the pilot after completing the EOC check?

Answer 19

“Pilot, Lead, computers have been assessed, GPS (or INS) is primary, we are in transit, you have the nav.”