Answer / bart rosenberg

At least two problems with the question. 1. It does not say
airplane, just plane. A plane in space is defined by three
points, and has no weight. 2. It says "scales", implying
that at least two scales are needed. Just use one scale.
Problem solved. Listen to what they say, not what you think
they mean.

Answer / ram

Well, if you know the thrust of the engines, and can
measure the acceleration of the aircraft, you can calculate
the mass of the plane.

Answer / john p. lesslar

If this refers to an actual airplane, use the force lift
equation: FL=CL(pv^2/2)A, where;

CL = the lift coefficient determined by the shape of the air
foil and angle of attack (can be determined by just
referring to an air foil performance curve)

p = density of air in regards to temperature (again, just
check the necessary table)

v = velocity at which the plane leaves the ground (do not
forget to convert to [ft/s] or [m/s])

A = area of the wing (chord X span)

Plug in the values and obtain FL. If you used [ft] for your
units, your answer will be in [lbf]. If you used [m], your
answer will yield [N].

To determine the mass [kg], just divide your answer in [m]
by 9.81[m/s^2]

Answer / arindom

First of all, I would ask for the specifications sheet of the aeroplane and the operation & maintenance manual. I'll take the answer from there. After all, the OEM is bound to have given it since you require the weight of the plane to design an airfield and ATC Tower

Answer / relish

Add the weight of the individual components.. :-)

Answer / hari thapliyal

For a moving plane

1. find out the force with which gas is coming out. This is equal to the force which which plane is moving
2. find out acceleration of plan
3. use formula below.

m=f/a
weight=m*9.8

Answer / selvin danish

WE CAN MEASURE BY IMMERSING IT IN A GIANT CONTAINER WHICH
IS GRADUATED ONE AND BY KNOWING THE AMOUNT OF WATER
DISPLACED AND COLLECTING IN A GRADUATED ONE CONTAINER .
(ARCHIMEDES PRINCIPLE)

Answer / saeda

with grams will work

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