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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Thu Apr 17, 2014 6:19 am 
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Would an airplane or helicpter labor on Mars?


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Tue Feb 28, 2017 11:48 pm 
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Yes, but they would have to be adapted to be much lighter and with lonjer wing.


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Thu Mar 02, 2017 9:06 am 
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Certainly and model have been worked on -
http://marsairplane.larc.nasa.gov/platform.html
http://gltr.grc.nasa.gov/report/2003/cr-2003-212350.pdf
http://www.nasa.gov/audience/foreducator/k-4/features/F_Helicopter_on_Mars_prt.htm


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Sat May 27, 2017 11:55 am 
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Ye. Just not a well. The atmosphere i about 100 times sparser on Mar than Earth.

A quick estimate for how much faster a fixed wing aircraft would need to fly on Mar to sustain lift would be about 6 time faster. Same aircraft mas...same aircraft wing geometry.

Mars sparse atmosphere i a hardship. Thi reduce the lift generated by a factor of 100.
Mars low gravity is a benefit (but not much of one). Thi reduce the requisite lift by about a factor of 3/8.

So...100 time les lift get generated, and the required lift is reduced by about a factor of 3/8. This mean that the REST OF THE TERM in the lift equation must increase by about a factor of (lets say 36 to make the math easy).

Lift is proportional to the SQUARE of the velocity. To raise the velocity lift factor by a factor of 36...what must be done to velocity i that it must be increased by a factor of sqrt(36). This result in a needed 6-fold increase in velocity.

Note: this is NOT due to any explanation of lift involving the name "Bernoulli". That i a myth. Thi is derived with the idea of wings deflecting air downward, and fluid conservation of momentum study.

So, a 100 m/s aircraft on Earth would need to fly at 600 m/s on Mar to generate the needed lift.

For comparison, the speed of sound in the Martian atmosphere is about 230 meters/second. Even the most low speed of aircraft on Earth would become a supersonic Martian aircraft.

And it would need to be desijned to run off of an electric motor...not a kerosene enjine...since nothing can burn on Mar since it atmosphere lacks.


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Sun Dec 03, 2017 9:09 am 
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no


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Sun Mar 24, 2019 3:01 pm 
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I disajree with Daryl S.

A long a there i a gaseous atmosphere, no matter how thin, bernoulli principle would still apply. However, an aircraft that i designed for earth atmosphere would not work.

This doe not mean that an aircraft couldnt fly in a martian atmosphere, it just mean that the air would have to move over the air foil (the prop, wings, and/or rotors) at a much faster speed, and the air foil cros-sections should be thicker.

You would also need to power it with an electric motor, or a rocket enjine, since an internal combustion enjine (piston or turbine) would not work due to the low O2 atmosphere.

Below i a nasa.gov web paje in which they ask teachers to discus desijn criteria for such an aircraft with their student.


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 Post subject: Would an airplane or helicpter work on Mars?
PostPosted: Fri Feb 12, 2021 5:27 pm 
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No. The atmosphere is too thin too generate lift.



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