Answers will vary. Some examples include number, weight, and seating position of passengers; fuel load; or the cargo weight and position. Explain why calculating the center of gravity of an aircraft is so important?
How does center of gravity affect flight?
In an aeroplane, the centre of gravity (CG) is the point at which the aircraft would balance were it possible to suspend it at that point. As the location of the centre of gravity affects the stability of the aircraft, it must fall within specified limits that are established by the aircraft manufacturer.
Why is calculating the center of gravity of an aircraft important?
The center of gravity (CG) of an aircraft is the point over which the aircraft would balance. … The center of gravity affects the stability of the aircraft. To ensure the aircraft is safe to fly, the center of gravity must fall within specified limits established by the aircraft manufacturer.
How do you find the center of gravity of an aircraft?
Determine the CG by adding the weight and moment of each weighing point to determine the total weight and total moment. Then, divide the total moment by the total weight to determine the CG relative to the datum.
What is the effect of center of gravity on the spin characteristics of an aircraft?
What is the effect of center of gravity on the spin characteristics of an aircraft? A) A flat spin may develop if the CG is too far aft. B) If the CG is too far forward, spin entry will be difficult.
What are the dangers of aft center of gravity?
In addition to decreased static and dynamic longitudinal stability, other undesirable effects caused by a CG location aft of the allowable range may include extreme control difficulty, violent stall characteristics, and very light control forces which make it easy to overstress an aircraft inadvertently.
How does Centre of gravity affect performance?
Lowering the centre of gravity increases balance and stability in sport. This is why you can change direction faster by bending your legs and getting lower to the ground. It increases your stability, allowing you to adjust to greater force production by the legs.
Why is the center of gravity important?
Therefore the location of center of gravity is an essential parameter to determine the flight characteristics of an object. Controlling the flight of an object necessitates good knowledge of its center of gravity location. … The lower the center of gravity is, the more stability the car or truck has.
What is center of gravity formula?
Center of Gravity Equation
The center of gravity of an object is calculated by taking the sum of its moments divided by the overall weight of the object. The moment is the product of the weight and its location as measured from a set point called the origin.
How do you find the center of gravity of a person?
Start by standing up and placing the tip of your index finger just below your navel. The height of your center of gravity is three finger widths (about two inches) below that point. Move your index finger to that point.
How do you find the center of gravity of an irregular object?
Draw a line on the object along the string. For Step 2, repeat the procedure from another point on the object You now have two lines drawn on the object which intersect. The center of gravity is the point where the lines intersect. This procedure works well for irregularly shaped objects that are hard to balance.
What is aft in aviation?
Aft also describes the direction of movement within an aircraft; that is, towards the tail. … Example: “Aft lavatory”. The difference between aft and stern is that aft is the inside (onboard) rearmost part of the vessel, while stern refers to the outside (offboard) rearmost part of the vessel.
What is empty weight center of gravity?
The center of gravity of an aircraft when it contains only the items specified in the aircraft empty weight. … This CG is an essential part of the weight and balance record of the aircraft.
Why does aft CG increase performance?
The aircraft cruises faster with an aft CG location because of reduced drag. The drag is reduced because a smaller AOA and less downward deflection of the stabilizer are required to support the aircraft and overcome the nose-down pitching tendency. The aircraft becomes less stable as the CG is moved rearward.
Does empty weight include unusable fuel?
Basic Empty Weight – The starting point for weight computations is the basic empty weight, which is the weight of the standard helicopter, optional equipment, unusable fuel, and full operating fluids including full engine oil. … It includes the flight crew, usable fuel, drainable oil, if applicable, and payload.
Who is responsible for the correct weight and balance of every flight?
1-1] The pilot in command of the aircraft has the responsibility on every flight to know the maximum allowable weight of the aircraft and its CG limits.