How do airlines calculate weight and balance?

Typically, an operator calculates takeoff weight by adding the operational empty weight (OEW) of the aircraft, the weight of the passenger, cargo payload, and the weight of fuel.

How is aircraft weight and balance calculated?

Ascertain from the pilot’s operating handbook the empty weight of the aircraft and determine the weights of people, baggage, and fuel. Multiply each weight by the arm—the distance from the reference datum—to find the moment. Add all the weights to find the gross weight. Add all the moments to find the total moment.

How do airlines account for passenger weight?

At present, airlines use “assumed mass” – estimating the total weight of the passengers by using set figures. Typically each passenger is assumed to weigh 88kg. Airlines may use gender to refine this figure, allowing 93kg for men and 75kg for women.

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Do you have to calculate weight and balance for your aircraft each time you fly?

It doesn’t require that you do a weight and balance for each flight. … If operating close to the weight and balance limits of an aircraft, a wise pilot will not only run the numbers to ensure compliance with aircraft operating limitations, but will also keep his or her computation in the event of a ramp check.

How does Cessna 172 calculate weight and balance?

2 Answers

  1. Determine the weights and arms of all mass within the aircraft.
  2. Multiply weights by arms for all mass to calculate moments.
  3. Add the moments of all mass together.
  4. Divide the total moment by the total weight of the aircraft to give an overall arm.

29 окт. 2015 г.

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.

What does the weight and balance moment measure?

Filed Under: Aircraft Weight and Balance. A moment is the product of a weight multiplied by its arm. The moment for a piece of equipment is in fact a torque value, measured in units of inch-pounds (in-lb).

What is the force that opposes weight and allows an airplane to fly?

Lift works opposite of weight. Thrust works opposite of drag. When the forces are balanced, a plane flies in a level direction.

What’s the most dangerous part of flying?

Boeing research shows that takeoff and landing are statistically more dangerous than any other part of a flight. 49% of all fatal accidents happen during the final descent and landing phases of the average flight, while 14% of all fatal accidents happen during takeoff and initial climb.

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Can a plane be overweight?

It can be overweight for takeoff. In that case it may get off the ground on the normal runway and crash or worse, crash after a short time in the air since the lift of the wings will not be sufficient to keep the plane in the air at the normal speeds achievable on the runway.

What is moment in aircraft weight and balance?

Moment—the product of the weight of an item multiplied by its arm. Moments are expressed in pound-inches (in-lb). Total moment is the weight of the airplane multiplied by the distance between the datum and the CG.

How do I calculate my takeoff weight?

To calculate your takeoff fuel weight, multiply your takeoff gallons by the weight of fuel. What will be your landing fuel weight? To find this, you’ll need to know your landing gallons, and multiply this by the weight of fuel.

Does basic 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.

How much weight can a Cessna 172 carry?


1965 172F (Skyhawk) 1997-2007 172R (Skyhawk)
Standard Empty Weight 1,260 lbs. 1,600 lbs.
Max. Useful Load Normal Category 1,040 lbs. 857 lbs.
Max. Useful Load Utility Category 740 lbs. 507 lbs.
Baggage Capacity 120 lbs. 120 lbs.
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What is the weight of a Cessna 172?

757 kg

How do you weight and balance a Cessna 152?

Multiply each weight by its “Arm” and put the result in the “Moment” column. Total the Weight and Moment columns. Divide Total Moment by Total Weight to determine the C.G. (center of gravity) location. Verify Total Weight and C.G. fall within the C.G. envelope prior to conducting any flight.