María Pérez Muñoz

Aircraft maintenance   checks are periodic inspections that have to be done on all commercial and civil aircraft after a certain amount of time or usage. Military aircraft normally follow specific maintenance programmes which may, or may not, be similar to those of commercial and civil operators The D check, sometimes known as a "heavy maintenance visit" (HMV), is by far the most comprehensive and demanding check for an airplane. This check occurs approximately every 6-10 years. It is a check that more or less takes the entire airplane apart for inspection and overhaul. Even the paint may need to be completely removed for complete inspection of the fuselage metal skin. Such a check can generally take up to 50,000 man-hours, and 2 months to complete depending on the number of technicians involved. It also requires the most space of all maintenance checks, and as such must be performed at a suitable maintenance base. The requirements and the tremendous effo...

1º Find the contrary of these charasteristic FRAGILE - STRONG LIGHT - DARK RIGID - FLEXIBLE CLEAN - DIRTY ROUGH - SOFT HOLLOW - FULL INERT - ALIVE STRAIGHT - DISTORTED SHINY - MAT POINTED - ROUNDED 2º Find an item on an aircraft made of each os these materials COPPER  In  aircraft ,  copper  is  used  primarily in the electrical system for bus bars, bonding, and as lockwire STAINLESS STEEL  Common  uses  in the  aircraft  industry include jet engines, exhaust ducts, flanges, piston engine exhaust manifolds, afterburners, flash boilers, and more HONEYCOMB  Honeycomb  sandwich structures are widely  used  on  aircraft  flight control surfaces such as rudder, aileron, spoiler, and flap.  FABRIC  Currently, only a few approved fabrics are used for aircraft coverings, such as the  polyester  fabrics Ceconite™, Stits/Polyfiber™...

TURBOJET The basic componets are still the compressor, combustor, and turbine. The turbojet gets its propulsive power from reaction to the flow of hot gases. Air enters the inlet and ts pressure is increased by the compressor. Fuel is added in the combustor and the expansion created by heat forces the turbine wheel to rotate. The turbine in turn drives the compressor. The energy remaining downstream of the turbine in the tailpipe accelerates into the atmosphere and creates the reaction we refer to as thrust. TURBOFAN The turbofa, in effect, is a ducted, multi-blade propeller driven by a gas turbine engine. This fan procedures a pressure ratio on the order of 2:1 or two atmospheres of compression. Generrally, turbofan contain 20 to 40 fixed pitch blades. They were developed to provide a compromise between the best features of the turbejet type cruise speed capability and yet retains some of the short field takeoff capability of the  turboprop. By compa...

SAW Is a  tool  consisting of a tough  blade ,  wire , or  chain  with a hard toothed edge. It is used to cut through  material , very often  wood  though sometimes metal or stone. The cut is made by placing the toothed edge against the material and moving it forcefully forth and less forcefully back or continuously forward. This force may be applied by  hand , or  powered  by  steam ,  water ,  electricity  or other  power  source. An  abrasive saw  has a powered circular blade designed to cut through metal or ceramic. My experience with the saw: I have used electric saws to cut wood logs for the fireplace, metal to restore cars. Hand saw for aluminium in the practices of module 6 in Air Europa. MULTIMETER Is an  electronic   measuring instrument  that combines several measurement functions in one unit. A typical multimeter can measure  voltage ,...