10.5 - Weighing Flashcards
what will the weight and balance schedule include? (2)
*basic weight and weight of additional items
*position of datum point for moments
how often should an operator weigh an aircraft?
- 4 years if individual masses are used
- 9 years if fleet masses are used
what should happen after a modification has been embodied to the aircraft?
documentated if weight known,
reweighed if not known
during any phase of operation, what should an operator ensure?
that the loading, mass and CofG is within the limitations of the aircraft specified in its flight manual
what happens with the load sheet?
loading supervisor signs document stating it conforms to flight manual,
commander counterisgns for his acceptance
who prepares the mass and balance documents for loading?
appropriately trained personnel who have to put their name on the document for traceability purposes
why is a mass and balance sheet created?
to ensure the balance limits of the aircraft are not exceeded
what happens to the weighing schedule on transfer of ownership?
it doesn’t have to be reweighed unless 4 years have elapsed
do new aircraft from the factory have to be reweighed before entering service?
no providing that it doesn’t need to be adjusted for modifications or alterations
when should the mass and CofG be revised?
if the dry operating mass exceed +/- 0.5% of Max landing mass (MLM)
or
a cumulative change of CofG position exceed 0.5% of Mean aerodynamic chord (MAC)
what is traffic load?
total mass of passengers, baggage, cargo, specialist equipment and ballast
what is MAC
mean aerodynamic chord,
average length of the wing chord
how are fleet masses used?
aeroplanes of the same model and config,
An average dry operating mass (DOM) and CofG is used
what are the limitations to using fleet masses?
DOM of individual aircraft can not differ by more than +/- 0.5% of MLM
CofG of individual aircraft can not differ by more than +/- 0.5% of MAC
ensuring equipment or config fall within tolerances
how do you add an aircraft to the fleet mass values?
weigh the aircraft to verify values within tolerances
