Quantcast AIRCRAFT HYDRAULIC SYSTEMS

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
!    Aluminum trailing edge cap !    Aluminum or polyurethane and nickel abrasion leading edge strip Additionally, rotary rudder blades may have deicing provisions, such as electrothermal blankets that are bonded into the blade's leading edge. or a neoprene anti-icing guard embedded with electrical heating elements. Q4-17. What is the main advantage of rotary-wing aircraft over fixed-wing aircraft? Q4-18. What are the three types of landing gear used on helicopters? Q4-19. The directional control and antitorque action of the helicopter is provided by what group? AIRCRAFT HYDRAULIC SYSTEMS LEARNING OBJECTIVE: Identify the components of aircraft hydraulic systems and recognize their functions. The aircraft hydraulic systems found on most naval aircraft  perform  many  functions.  Some  systems operated by hydraulics are flight controls, landing gear, speed brakes, fixed-wing and rotary-wing folding mechanisms, auxiliary systems, and wheel brakes. Hydraulics has many advantages as a power source for operating these units on aircraft. !    Hydraulics combine the advantages of lightweight, ease of installation, simplification of inspection, and minimum maintenance requirements. !    Hydraulics operation is almost 100-percent efficient, with only a negligible loss due to fluid friction. However, there are some disadvantages to using hydraulics. !    The possibility of leakage, both internal and external, may cause the complete system to become inoperative. !    Contamination by foreign matter in the system can cause malfunction of any unit. Cleanliness in hydraulics cannot be overemphasized. COMPONENTS OF A BASIC SYSTEM Basically, any hydraulic system contains the following units: !    reservoir to hold a supply of hydraulic fluid !    pump to provide a flow of fluid !    Tubing to transmit the fluid !    selector valve to direct the flow of fluid !    An actuating unit to convert the fluid pressure into useful work A simple system using these essential units is shown in figure 4-21. You can trace the flow of fluid from the reservoir through the pump to the selector valve. In figure 4-21, the flow of fluid created by the pump flows through the valve to the right end of the actuating cylinder. Fluid pressure forces the piston to the left. At the same time, the fluid that is on the left of the piston is forced out. It goes up through the selector valve and back to the reservoir through the return line. When the selector valve is moved to the position indicated by the dotted lines, the fluid from the pump flows to the left side of the actuating cylinder. Movement of the piston can be stopped at any time simply by moving the selector valve to neutral. When the selector valve is in this position, all four ports are closed, and pressure is trapped in both working lines. 4-19 ANF0421 PRESSURE LINE SELECTOR VALVE IN "DOWN" POSITION RETURN LINE SELECTOR VALVE IN "UP" POSITION WORKING LINES HAND PUMP ACTUATING UNIT RESERVOIR Figure 4-21.—Basic hydraulic system, hand pump operated.



Aviation News
AGI Software Enhances Air Force AMC Tech for Humanitarian Relief
GLADS software solution. Photo: Analytical Graphics, Inc. [Avionics Today 11-21-2014]...
aviationtoday.com
Delta orders 50 Airbus widebody aircraft
25 A350-900 and 25 A330-900neo to join fleet of leading...
airbus.com
Airbus and UNESCO partner on global student challenge Fly Your Ideas
Empowering a new generation of young innovators Share this Read...
airbus.com
Airbus announces distinguished evaluation Jury for the 2nd GEDC Airbus Diversity Award
Leading Aircraft manufacturer, Airbus, announces the members of the prestigious...
airbus.com
Northrop Grumman New Open-Architecture DIRCM Laser Protects Crew and Cargo
Northrop Grumman offices. Photo: Northrop Grumman [Avionics Today 11-20-2014] Northrop...
aviationtoday.com
North Texas NextGen Procedures Deliver Benefits
NextGen project in North Texas to deliver more on-time flights,...
faa.gov
Eurocontrol and EDA Collaborate to Provide SESAR Military Perspective
[Avionics Today 11-19-2014] Eurocontrol and the European Defence Agency (EDA)...
aviationtoday.com
Innovative by nature: Airbus establishes a company-wide network for bionics projects
Airbus believes that much can be learned by studying the...
airbus.com
NTSB Rules Favorably on FAA UAS Appeal
November 18The National Transportation Safety Board today affirmed the FAAs...
faa.gov
Northrop Grumman Awarded $210 Million to Supply Joint STARS to US Air Force
Technicians demonstrating the Joint STARS system. Photo: Northrop Grumman [Avionics...
aviationtoday.com
BAE Systems Submits Proposal to Protect US Troops Against Infrared Threats
The Common Infrared Countermeasure (CIRCM) system. Photo: BAE Systems [Avionics...
aviationtoday.com
Airbus to expand oversize air transport capability
Launches development of new Beluga oversize transport aircraft Share this...
airbus.com
The A350 XWB embarks on demonstration tour of Asia
MSN5 takes off to South Korea, Japan, Vietnam, Thailand and...
airbus.com
Elbit to Provide Air Defense Systems for Diehl Defence Airbus A400
The J-MUSIC system. Photo: Elbit [Avionics Today 11-17-2014] Elbit Systems...
aviationtoday.com
Northrop Grumman to Supply H-1 Mission Computer
The Naval Air Systems Command (NAVAIR) has awarded a contract...
aviationtoday.com
Airbus-supported SESAR demonstration activities are guiding the way towards improved air traffic management
Ongoing demonstrations as part of the Single European Sky ATM...
airbus.com
Latin American and Caribbean airlines will need 2,300 aircraft by 2033
Intra-regional traffic to be Latin America’s greatest potential Share this...
airbus.com
Honeywell Engines to Power Textron AirLand’s Scorpion Aircraft
Textron AirLand Scorpion demonstration flight at the 2014 Royal International...
aviationtoday.com
MD Helicopters Signs Support Contract for Saudi Arabian National Guard
The Saudi Arabian National Guard has issued a $976,222 to...
aviationtoday.com
NAVAIR Electromagnetic Aircraft Launch System to Reduce Aircraft ‘Wear-and-Tear’
EMALS air launch system. Photo: General Atomics [Avionics Today 11-14-2014]...
aviationtoday.com


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +