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1/22/2020 12:12:56 PM
Posted: 10/8/2007 1:57:35 PM EST
A cargo plane is flying along transporting 1,000 pigeons.

Suddenly, all the pigeons get startled and start flying around in their cages.

Is the plane now lighter?
Link Posted: 10/8/2007 1:58:37 PM EST
Yes.
Link Posted: 10/8/2007 1:58:46 PM EST
Tag for the 100 page thread.
Link Posted: 10/8/2007 2:00:09 PM EST
I'm going to go with yes
Link Posted: 10/8/2007 2:00:31 PM EST
One day, I'm gonna find the font from which these questions emanate daily, and plug that fucker up.
Link Posted: 10/8/2007 2:00:58 PM EST

Originally Posted By operatorerror:
Yes.


wrong.

mythbusters did this.

the weight of the pigeons is supported my the air, which presses on the floor the same as they were sitting on it.
Link Posted: 10/8/2007 2:01:18 PM EST
Link Posted: 10/8/2007 2:01:20 PM EST
A B-52 is flying along carrying 20 bombs. The bomb bay opens up and 10 of them are "pickled". Is it lighter?

To your question, no. The cargo plane is pressurized and is for all intents and purposes a "closed" system. Also 1000 pigeons don't weigh enough to make a noticeable difference even if they were all ejected overboard at once. Now, if a cargo airplane ingested 1000 pigeons into the engines at one time, there would be some changes in gravitational forces, and some shifting around of fecal matter inside flight suits.
Link Posted: 10/8/2007 2:03:19 PM EST
No,

The pigeons are still within the closed system of the airplane.
Link Posted: 10/8/2007 5:38:23 PM EST
[Last Edit: 10/8/2007 5:38:49 PM EST by H46Driver]

Originally Posted By innocent_bystander:

Originally Posted By Neotopia:
No,

The pigeons are still within the closed system of the airplane.


What if the aircraft isn't pressurized?


Then the pigeons all pass out from hypoxia and can't fly anyway.

Does the plane get lighter while the pigeons fall from their perches to the floor of the plane?
Link Posted: 10/8/2007 5:38:56 PM EST
No, the mass of the pidgeons is still interacting with the mass of the air in the closed system of the aircrafts fuselage.
Link Posted: 10/8/2007 5:40:37 PM EST
Are they north African pigeons?
Link Posted: 10/8/2007 5:41:28 PM EST

Originally Posted By gringopistolero:

Originally Posted By operatorerror:
Yes.


wrong.

mythbusters did this.

the weight of the pigeons is supported my the air, which presses on the floor the same as they were sitting on it.


+1 the downward force to keep the pigeons aloft is pushing on the floor of the aircraft.
Link Posted: 10/8/2007 5:44:08 PM EST
What is the altitude?...

Is it using BIOfuel?..

Are these carrier pigeons?..

Is there an in flight meal?..

Will the flight in question be crossing any international date lines?..

PETA certified cages?...

Are the pilots wearing Crocks?..

Have the pilots used a treadmill in the last 24 hrs?..

There are just too many variables to the question, but all things being equal, I say no change in weight.
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