Aircraft Ice Protection System: Description And Operation

1575 words - 6 pages


(With reference to A330 Aircraft as shown above)

1. WING ANTI-ICING – using hot air bleed from pneumatic systems (red color)
2. ENGINE ANTI-ICING – using hot air bleed from engine HP compressor (red color)
3. PROBE HEATING – electrically controlled heating applied to Pitot, Static and TAT probes
4. WINDOW HEATING – electrically controlled heating on cockpit windows


The Wing Anti-ice protection system is designed normally for flight operation only, and during icing condition when needed hot air is supplied by the pneumatic system to the four outboard slats to raise the temperature. Bleed air is supplied to each wing through two Wing Anti Ice (WAI) valves on each wing side left and right.

The hot air is sprayed thru piccolo tubes on the leading edges and exhausted overboard.

This Wing anti-icing is controlled by the crew using a push-button selector in the cockpit control panel turning ON or OFF position. Cockpit indications will be available to the crew when it is available and also when it is faulty.



The engine anti-icing is not ON all the time on ground or inflight conditions. Engine air intake ice protection protects the engine during operation in ambient icing or snowy conditions. Hot air bled from high pressure compressor example from third stage is used to heat the air intake lip. Hot air is supplied through an engine air intake anti-ice valve.

The system is turn ON when needed using the individual engine push-button switch for engine anti-ice control ON or OFF position. Indications will be available to the crew whenever the engine anti ice is working or faulty.



All the air data probes used for feedback information are critical to the aircraft systems. Ice protection of the static ports, Angle Of Attack (AOA) sensors, pitot and Total Air Temperature (TAT) probes is achieved by electrical heating.

In A330 aircraft, three Probe Heat Computers (PHCs) control the heating elements. Probe
heating system is automatically or manually controlled. In case of severe icing conditions on ground, automatic operation can be overridden with the PROBE/WINDOW HEAT P/BSW. It will be automatically ON when the aircraft is inflight conditions or when engine is running.

Indications to the crew will be available if there is a fault on any of these probes heating so that they will do appropriate action in any abnormal flight conditions.



In large aircraft, the front windows called the windshield is anti-ice which means preventing ice formation while the side windows are heated for defogging or demisting. Ice protection for windshield and demisting for windows is electrically achieved. In A330 aircraft, two independent Window Heat Computers (WHCs), one...

Find Another Essay On Aircraft Ice Protection System: Description and Operation

Describe how the federal and state systems of government differ in regards to employment laws. Provide one example of a protection that is provided by the state system, but not the federal

1165 words - 5 pages , 2003)." The following is an example of an employment protection law that is provided by the state system but not the federal. "The California Supreme Court ruled that the state's protection for the disabled under the Fair Employment and Housing Act (FEHA) is far greater than that provided by the federal Americans with Disabilities Act (ADA). Since 1992 the courts have unanimously ruled that FEHA protects an employee whose condition simply

Short description and explanation of Forensics in the legal system

545 words - 2 pages According to, forensics is "the use of science and technology to investigate and establish facts in criminal or civil courts of law." In fact, forensics science plays the strongest role in solving any crime. There are a variety of methods involved with solving crimes; the main two are witness accounts and forensics evidence.Witness accounts and other human dependability prove to be inferior to the power of forensics science. There

This is a somewhat brief description of fungi, it's reproductive system, and how it obtains nutrients

705 words - 3 pages health issues and even death. Absidia is a type of fungus that grows in your lungs, sinus cavity, eyes, and even on you brain, and causes mucorosis. Syncephalastrum sp, causes a large fungal ball to form in the respiratory system of the infected organism.Now onto the structure of fungi, most fungi is multicellular, however in some cases, such as yeast, the fungi is unicellular. Multicellular fungi produces filaments called hyphae, hyphae can be

Aircraft Maintenance Practices

1271 words - 5 pages performance and may also lead to accidents, especially when in flight. The fact that ice accumulation can increase the weight and drag of the aircraft, thus severely reduce its lift. It can damage and clog the holes of the aircraft, as mentioned, which will unable to provide accurate detection for the system. When ice forms on the control surfaces, it would have an effect upon its movement and operation. Vision on the windscreens can also be affected


1729 words - 7 pages Contamination Envelope Protection System. Current trend of digital technology enables using data from many sensors for post flight safety analysis, fuel consumption, aircraft incident investigation and performance monitoring as part of FOQA program. 2.3 Aircraft Performance Monitoring Methods The current method used by airlines for Aircraft Performance Monitoring (APM) considers monitoring of fuel consumption and calculating specific range using only

Is The AH-64

1299 words - 6 pages reduce heat signature even more. The APR radar warning system is designed to alert the pilots where they are being targeted and from what direction. Another countermeasure this air craft has is the ALQ-144 this system is designed to protect the aircraft from air to air or ground to air heat seeking missiles. The chaff is designed to deploy to deflect heat seeking missiles if all other measures fail. The aircraft survivability also includes redundancy meaning that what ever the pilot can do so can the CPG and multiple systems that have backups so if one fails another can continue the aircrafts operation.

Aircraft Icing

817 words - 3 pages concerning avoidance and response to icing situations. Aircraft Icing Aircraft icing is nothing but trouble and a significant hazard to the aviation community. With the right upper level conditions, our winter season allows icing to occur when least expected and most pilots know very little about where icing will actually occur. With a small bit of meteorology related education, most can learn where ice may be waiting for them and how it

The Different Types of Aircraft Hazards and Support Equipment for ARFF Personnel

2477 words - 10 pages hazard to be concerned about. The aircraft structure and fuselage sections can “collapse, roll, shift, or slide” when least expected (IFSTA, 2008). Other hazards involve types of fluid: fuel, hydraulic fluid, oxygen systems, and lavatory waste spills. Aircraft fuel is normally distributed through two methods. The first method is usually delivered from a fuel tank truck and the other method is from a permanent underground piping system

Aviation Legislation

1494 words - 6 pages civil aviation relative to the advancement of technology o Advancing the air traffic control and navigation system for both civil and military aircraft o Regulating and taking control of U.S. commercial space transportation o Control of air navigation facilities' geometry and flight inspection standards o Ensure development of the National Airspace System and civil aeronautics o Develop programs for controlling aircraft noise and other


1376 words - 6 pages operation. The oils need to meet the standard of viscosity for temperature range. The aircraft is designed with cross-feeding between fuel tank and gravity feed fuel system. The two fuel tanks are located one in each wing with the capacity 13 gallons total capacity of 26 gallons with the usable fuel of 24.5 gallons. The aircraft is approved to use 100-low lead grade aviation fuel, blue color, and 100-grade aviation fuel, green color. If the aircraft

Business Plan for New Airline

1795 words - 7 pages around that range. Insurance Insurance is an important protection for this FBO. Due to the high amount of risk involved in aviation it will be important to hold monthly safety meetings, and have rotating safety officer schedule that will change every day. There are many different kinds of insurance that we must purchase. Some of the insurance coverage that is required: Aircraft hull Aircraft liability Passenger liability

Similar Essays

Description Of Nestlé (Thai) School Channel In Ice Cream Business Unit And Current Crm Complication

1680 words - 7 pages 2. Issue research & analysis 2a. Objectives To find a strategic technique to win over prospective customers and retain current customers through school’s decision making units in order to increase overall sales revenues. 2b. Literature Research Most of the data needed for research objectives are about Nestlé (Thai) ice-cream business unit, which are neither available in textbooks nor websites. Therefore, the data for primary

Computer Viruses: Infection Vectors, And Feasibility Of Complete System Protection

556 words - 2 pages from public services and then used, thus infecting the new system.4. Spontaneous Generation: this last vector is at the same time the least thought of and the least likely. However, because virus programs tend to be small, the possibility exists that the code necessary for a self-replicating program could be randomly generated and executed in the normal operation of any computer system.Even disregarding the fourth infection vector, it can be seen

Description Of A Concert As An Operating System With Inputs, Transformation Process And Outputs

679 words - 3 pages The operating system that I have chosen is a particular service operation: the realisation of a music concert. As every other organisation that produce goods or services, it has a precise operating system, composed by a range of inputs, a transformation process and a final output.INPUTS - We must distinguish between two different kind of resources: transformed resources, that are the resources treated and transformed in some way, and

Analysis And Description Of Hematologic System

1780 words - 7 pages The Hematologic System is regarded as the body’s system that regulates the movement of nutrients, molecules (macro and micro molecules), and oxygen to tissues and metabolic waste products and carbon dioxide out of the tissues (Colbert, 2009). The overall role of the hematologic system is to deliver substances needed for cellular metabolism, temperature regulation, defend the body from injury and microbial infections, and maintain the