Radio Communications & Navigational Aids

Question 1

What is a CAT III A approach?

Answer 1

A precision approach with no decision height OR a decision height lower than 100ft & an RVR of less than 700ft.

Question 2

What is a CAT III B approach?

Answer 2

A precision approach with no decision height or with a decision height lower than 50ft & and RVR of less than 700ft.

Question 3

What is a CAT III C approach?

Answer 3

A precision approach with no decision height and no RVR limitaitons.

Question 4

Types of VASIS:

Answer 4

V1: 2-bar VASIS, EWH up to 10ft
V2: 2- bar VASIS, EWH up to 25ft
AV: AVASIS, abbreviated VASI system, EWH up to 10ft

Question 5

Types of PAPI:

Answer 5

AP: Abbreviated PAPI, EWH up to 10ft
P1: PAPI, EWH up to 10ft
P2: PAPI, EWH up to 25ft
P3: PAPI, EWH up to 45ft

Question 6

What would a 3-bar VASI indicate to an aircraft with an EWH of 25ft?

Answer 6

White
White
Red

Upper glide path!

Question 7

What would a 3-bar VASI indicate to an aircraft with an EWH of 10ft?

Answer 7

White
Red
Red

Lower glide path!