Avionics
CHAPTER 7
AIRCRAFT AVIONICS
INTRODUCTION
from the battery posts simply by turning the handle and pulling the quick-disconnect unit.
Modern naval aircraft have a wide variety of missions. The electronic equipment these aircraft carry enables them to perform these missions. We refer to this equipment as aviation electronics (avionics). The purpose of this chapter is to familiarize you with the most widely used avionics in the Navy.
LEAD-ACID BATTERY
Fundamentally, there is no difference between the lead-acid aircraft battery and the lead-acid automobile battery. Both have lead plates in a solution of sulfuric acid and water (electrolyte). Both operate on the same basic principles. The lead-acid battery consists of cells connected in series. Each cell contains positive plates of lead peroxide and negative plates of spongy lead.
Aircraft have two primary sources of electrical energy. The first is the generator, which converts mechanical energy into electrical energy. The second is the battery, which converts chemical energy into electrical energy. The generator is the main source and the battery is the auxiliary source. The Aviation
Electrician's Mate (AE) rating maintains aircraft electrical systems.
NICKEL-CADMIUM BATTERY
The nickel-cadmium battery gets its name from the composition of its plates: nickel oxide on the positive plate and metallic cadmium on the negative plates. The electrolyte consists of potassium hydroxide and water.
The fundamental unit of the nickel-cadmium aircraft storage battery is the cell. The sintered-plate
AIRCRAFT STORAGE
BATTERIES
LEARNING OBJECTIVE: Identify the basic operating principles and safety precautions for working around aircraft batteries. 1
2
The aircraft storage battery provides a reserve source of electrical power for selected electrical systems. During normal aircraft operation, the generator maintains the battery in a charged state.
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3
9
5
12
AIRCRAFT AVIONICS
INTRODUCTION
from the battery posts simply by turning the handle and pulling the quick-disconnect unit.
Modern naval aircraft have a wide variety of missions. The electronic equipment these aircraft carry enables them to perform these missions. We refer to this equipment as aviation electronics (avionics). The purpose of this chapter is to familiarize you with the most widely used avionics in the Navy.
LEAD-ACID BATTERY
Fundamentally, there is no difference between the lead-acid aircraft battery and the lead-acid automobile battery. Both have lead plates in a solution of sulfuric acid and water (electrolyte). Both operate on the same basic principles. The lead-acid battery consists of cells connected in series. Each cell contains positive plates of lead peroxide and negative plates of spongy lead.
Aircraft have two primary sources of electrical energy. The first is the generator, which converts mechanical energy into electrical energy. The second is the battery, which converts chemical energy into electrical energy. The generator is the main source and the battery is the auxiliary source. The Aviation
Electrician's Mate (AE) rating maintains aircraft electrical systems.
NICKEL-CADMIUM BATTERY
The nickel-cadmium battery gets its name from the composition of its plates: nickel oxide on the positive plate and metallic cadmium on the negative plates. The electrolyte consists of potassium hydroxide and water.
The fundamental unit of the nickel-cadmium aircraft storage battery is the cell. The sintered-plate
AIRCRAFT STORAGE
BATTERIES
LEARNING OBJECTIVE: Identify the basic operating principles and safety precautions for working around aircraft batteries. 1
2
The aircraft storage battery provides a reserve source of electrical power for selected electrical systems. During normal aircraft operation, the generator maintains the battery in a charged state.
7
3
9
5
12