FCS provide more than 10 tool kits for a range of high-tech applications, including avionics testing, dent inspection and general maintenance. Tools are sourced from reputable brands, such as BAHCO and SNAP ON, and are forged from highest quality steal for long lasting performance and resistance to extreme weather conditions. Tools included in the kits are wide ranging, for example FCS' BMD Toolbox contains no less than 67 items, each carefully designed for a specific purpose in aviation maintenance, including, but not limited to:
Aircraft maintenance is the overhaul, repair, inspection or modification of an aircraft or aircraft component. Elementary work, such as removing and replacing tires, inspection plates, spark plugs, checking cylinder compression etc, on small privately operated aircraft ; or removal and replacement of fuses, light bulbs etc, on transport category aircraft . Servicing, such as refueling, washing windows.
Friday 15 November 2013
Thursday 14 November 2013
Four Force on an Aircraft
A force may be thought of as a push or pull in a specific
direction. A force is a vector quantity so a force has both a magnitude and a
direction. When describing forces, we have to specify both the magnitude and
the direction. This slide shows the forces that act on an airplane in flight.
Weight
Weight is a force that is always directed toward the center
of the earth. The magnitude of the weight depends on the mass of all the
airplane parts, plus the amount of fuel, plus any payload on board (people,
baggage, freight, etc.). The weight is distributed throughout the airplane. But
we can often think of it as collected and acting through a single point called
thecenter of gravity. In flight, the airplane rotates about the center of
gravity.
Flying encompasses two major problems; overcoming the weight
of an object by some opposing force, and controlling the object in flight. Both
of these problems are related to the object's weight and the location of the
center of gravity. During a flight, an airplane's weight constantly changes as
the aircraft consumes fuel. The distribution of the weight and the center of
gravity also changes. So the pilot must constantly adjust the controls to keep
the airplane balanced, or trimmed.
Lift
To overcome the weight force, airplanes generate an opposing
force called lift. Lift is generated by the motion of the airplane through the
air and is an aerodynamic force. "Aero" stands for the air, and
"dynamic" denotes motion. Lift is directedperpendicular to the flight
direction. The magnitude of the lift depends on several factors including the
shape, size, andvelocity of the aircraft. As with weight, each part of the
aircraft contributes to the aircraft lift force. Most of the lift is generated
by the wings. Aircraft lift acts through a single point called the center of
pressure. The center of pressure is defined just like the center of gravity,
but using the pressure distribution around the body instead of the weight
distribution.
The distribution of lift around the aircraft is important
for solving the control problem. Aerodynamic surfaces are used to control the
aircraft in roll, pitch, and yaw.
Drag
As the airplane moves through the air, there is another
aerodynamic force present. The air resists the motion of the aircraft and the
resistance force is called drag. Drag is directed along and opposed to the
flight direction. Like lift, there are manyfactors that affect the magnitude of
the drag force including the shape of the aircraft, the "stickiness"
of the air, and thevelocity of the aircraft. Like lift, we collect all of the
individual components' drags and combine them into a single aircraft drag magnitude.
And like lift, drag acts through the aircraft center of pressure.
Thrust
To overcome drag, airplanes use a propulsion system to
generate a force called thrust. The direction of the thrust force depends on
how the engines are attached to the aircraft. In the figure shown above, two
turbine engines are located under the wings, parallel to the body, with thrust
acting along the body centerline. On some aircraft, such as the Harrier, the
thrust direction can be varied to help the airplane take off in a very short
distance. The magnitude of the thrust depends on many factors associated with
the propulsion system including the type of engine, the number of engines, and
the throttle setting.
For jet engines, it is often confusing to remember that
aircraft thrust is a reaction to the hot gas rushing out of the nozzle. The hot
gas goes out the back, but the thrust pushes towards the front. Action
<--> reaction is explained by Newton's Third Law of Motion.
The motion of the airplane through the air depends on the
relative strength and direction of the forces shown above. If the forces are
balanced, the aircraft cruises at constant velocity. If the forces are
unbalanced, the aircraft accelerates in the direction of the largest force.
Note that the job of the engine is just to overcome the drag
of the airplane, not to lift the airplane. A 1 million pound airliner has 4
engines that produce a grand total of 200,000 of thrust. The wings are doing
the lifting, not the engines. In fact, there are some aircraft, called gliders
that have no engines at all, but fly just fine. Some external source of power
has to be applied to initiate the motion necessary for the wings to produce
lift. But during flight, the weight is opposed by both lift and drag. Paper
airplanes are the most obvious example, but there are many kinds of gliders.
Some gliders are piloted and are towed aloft by a powered aircraft, then cut
free to glide for long distances before landing. During reentry and landing,
the Space Shuttle is a glider; the rocket engines are used only to loft the
Shuttle into space.
You can view a short movie of "Orville and Wilbur
Wright" explaining how the four forces of weight, lift, drag and thrust
affected the flight of their aircraft. The movie file can be saved to your
computer and viewed as a Podcast on your podcast player.
Wednesday 20 March 2013
Our Aim
Our Aim is to provide help to new comer’s technician and
engineering to achieve their goals in the field of aviation. These notes are really
help full for all those new comers and old engineers.
what is ATITA MANUAL
ATITA MANUAL is
basic Aircraft Maintenance Notes that provide help to trainee aircraft
technician and engineer to achieve their goals. ATITA MANUAL contains basic knowledge
of aircraft engineering both aerospace and avionics and provides sound
knowledge of aircraft construction and maintenance.
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