Wednesday, April 27, 2011

Glide angle and speed


During descent, the angle between the angle between the actual glide path of the aircraft
and the horizon is called the glide angle, the glide angle increases as drag increases, and
decreases as drag decreases. Since a decreased glide angle, or a shallower glide, provides the
greatest gliding distance.

Next topic that i will discuss
Lift to Drag Ratio

Constant Airspeed descent


Once the aircraft has reached the state of equilibrium for a constant airspeed descent,
the tendency to increase drag will increase once the pilot has lowered the landing gear, also you
can increase drag by descending at a speed lower than the recommended glide speed.

next topic that i will discuss would be the Glide angle and speed

Aerodynamic Component of an Aircraft: Forces acting on a descending aircraft

Let’s continue with the topic guys, by considering the forces if weight, lift, thrust and drag
As they affect a descending aircraft, if you are using power during a stabilized descent,
During the descent a component of weight acts forward along the flight path, as speed
Increases, this force is increased in parasite drag.

During a power off glide, the throttle is placed in idle position so the engine as well as
the propeller produce no thrust. In this instance the airplanes thrust is the forward
component of weight along the flight path.

moving forward on the next topic i will discuss to you, constant airspeed descent 

Tuesday, April 26, 2011

Aerodynamic Component of an Aircraft: Forces acting on a climbing airplane

The forces of weight,lift, thrust and drag are equilibrium during a stabilized climb, just as they are during straight and level flight. When an airplane is climbing, through the force of weight it consists of two components. The first opposes lift and is perpendicular to the flight path. The second is called the rearward component of weight and acts in the same direction as drag, opposite to the direction of force

Aerodynamic Component of an Aircraft: Three Axes of flight

According to Jeppessen: Private Pilot Manual
There are three axes of flight:
which are the Longitudinal Axis, Lateral And Vertical Axis.

Today my fellow students, professional, recreational pilots, simulator pilots and airline pilots.
I will discuss the three axes of an aircraft during flight.

Lets Start with Longitudinal Axis
Longitudinal Axis in an Airplane occurs during an aircraft banks or in other term it turns which is 
produced by the aileron , when you deflect an aileron using the yoke or flight stick, they create an
immediate movement about the longitudinal axis

Second would be the Lateral Axis
Lateral Axis occurs during pitch when pulling the yoke to climb or pushing the yoke to descend

Lastly Vertical Axis
From the word itself, Vertical Axis is the yaw movement of  the aircraft when the pilot stepped on to the rudder pedals, step on the left pedal the aircraft yaws to the left and step on the right pedal it yaws to the right.


Next component that i will discuss is the forces acting in climbing and descending airplane

Parts of an Airplane

First and foremost a good pilot is always familiar with the aircraft that he or she is flying.
he or she must be able to identify the parts of the aircraft as well as its uses.

In this lesson i have here an image of a Single Engine, High Wing Aircraft
It Consists of the following parts:
  • Aileron: moving parts attached to the rear edge of an aircraft's wing that helps the aircraft bank/turn
  • Elevator: moving parts on the horizontal stabilizer of an aircraft that move up or down to make the aircraft climb or descend
  • Elevator Trim Tab: a small tab that helps to reduce pilot fatigue.  It is a small flap that, when air passes over it in flight, it deflects the elevator to the proper position so the pilot does not have to manually hold it there.
  • Engine: the part of an aircraft that provides power to move the aircraft through the air it is placed inside the cowling which is the violet shaded part of the aircraft 
  • Flaps: found on the wing closer to the fuselage than the ailerons.  They can be lowered to provide more lift at slower speeds so an airplane can take off and land.
  • Flashing Beacon: flashing light on an aircraft that helps pilots avoid mid-air collisions
  • Fuel Tank: the tank that holds fuel for the engine
  • Fuselage: main structural part that connects all other parts together
  • Horizontal Stabilizer: airfoils located on the tail of an aircraft that help maintain a straight, horizontal path through the air
  • Landing Gear: the wheels on an airplane so it can land and taxi
  • Navigation Light: lights that show an aircraft's location for other pilots.  The lights are coded to show an aircraft's left (red light) and right (green light) sides.
  • Propeller: two or more twisted blades that pull an airplane forward as they turn.  Blades have the same shape as wings.
  • Radio Antenna: allows pilots to keep in radio contact with ground control
  • Rudder: moving parts on the vertical stabilizer that turn (yaw) the aircraft left or right
  • Vertical Stabilizer: airfoils located on the tail of an aircraft that help maintain a straight, vertical path through the air
    The advantage of the High Wing Aircraft is that the pilot would be able to see under the aircraft, which is great for sight seeing and rescue missons also the pilot is comfortable because the wing itself provides cover from the heat of the sun also the aircraft will be able to glide when engine quits.
    The Disadvantage of the High Wing Aircraft is the pilot would not be able to see what is above him.



    This is a Low wing Aircraft, the advantage of this aircraft is that the aircraft will be able to land smoothly because the wing itself has a huge effect on ground, which pilots call it as ground effect, the pilot will be able to see what's on top of the aircraft.


    On the next lesson i will i discuss the aerodynamic component in an aircraft

Basic Flight Training: What is an airplane

An airplane is an aircraft capable of flight using forward motion that generates lift as the wing moves through the air. Fixed-wing aircraft include planes, which are propelled forward by thrust from a jet engine or propeller, as well as unpowered aircraft (such as gliders), which use thermals, or warm-air pockets to inherit lift. Fixed-wing aircraft are distinct from ornithopters in which lift is generated by flapping wings and rotary-wing aircraft in which wings rotate about a fixed mast.



In this idea there are four forces which are related in flight.

First: Thrust or the forward motion that helps the airplane propel in the air
Second: Lift which is the upward motion or helps the airplane climb or fly
Third: Drag which makes the aircraft slow, the aircraft itself is a drag component
Fourth: Weight which is a downward force

Technically for a beginner pilot you should know these stuff and you will be able
to learn this from ground school, i am not a certified flight instructor, however
i can help future airline captains and aspiring pilots with my knowledge and skills
that i acquired through previous ground school and in flight lessons both private and
commercial pilots lessons. Next lesson would be the Parts of the Aircraft under Flight
Flight Training Category