Airship - Revision history

Michel Lamontagne at 20:17, 30 August 2021

2021-08-30T20:17:22Z

← Older revision		Revision as of 21:17, 30 August 2021
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	[[Category: Surface Vehicles]]		[[Category: Surface Vehicles]]
	[[Category: ~~Aeronautics~~]]		[[Category: Astronautics]]

Michel Lamontagne at 20:17, 30 August 2021

2021-08-30T20:17:02Z

← Older revision		Revision as of 21:17, 30 August 2021
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	[[Category: Surface Vehicles]]		[[Category: Surface Vehicles]]
			[[Category: Aeronautics]]

Michel Lamontagne at 03:20, 4 August 2019

2019-08-04T03:20:10Z

← Older revision		Revision as of 04:20, 4 August 2019
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	An airship might be useful for transport on [[Mars]].		An airship might be useful for transport on [[Mars]].

	=== Payload ===		===Payload===
			The payload on Mars will be the difference in density of hydrogen versus CO2 at the martian atmospheric pressure, minus the mass of the airship. Martian atmospheric density is 0,02 kg/m3, while the density of hydrogen is about 0,0005 kg/m3 (need to check). So the airship needs to mass less than 0,02 kg/m3 to fly. For a 5m sphere, with a volume of 32 m3, the mass of the airship would need to be no more than 0,02 x 32 = 0,6 kg, so it would need to be extremely thin to carry any practical payload. For a much larger 100 m diameter airship, the displacement is much larger, almost 10 000 kg, while the surface has not grown as fast (to the square rather than to the cube), and is about 30,000 m2. So the material of the airship could mass up to 0,3 kg/m2. Using flexible high tensile fibers such as Kevlar with a thickness of about 1mm yields a fabric massing 0,15 kg/m2. Such an airship, with a 1mm thick skin, could lift about 5 tonnes of payload and other structure.

	==~~Other cargo systems~~==		=== Limitations ===
			The main limitation is the strength of the structural materials that can be used on Mars. Another problem is the very large size that would make the vehicle difficult to control.
	*Large rovers: have to traverse rough terrain
	*Balloons: at the ~~mercy~~ of the ~~wind~~
	*Railways: Need thousands of miles of track
	*Aircraft: Need more fuel then airships

	===Advantages===		===Advantages===
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	*The large surface of the airship would results in strong forces during [[dust storms]].		*The large surface of the airship would results in strong forces during [[dust storms]].

	~~Payload on Mars~~		== Other cargo systems ==

	~~==Open issues==~~		*Large rovers: have to traverse rough terrain
			*Balloons: at the mercy of the wind
	*~~What is~~ the ~~maximum payload under Martian conditions? There might be an absolute limit due to~~ the ~~physics.~~		*Railways: Need thousands of miles of track
	*~~What is the minimum size~~ of ~~such an airship, considering the weight~~ of ~~the propellant system and~~ fuel?		*Aircraft: Need more fuel then airships

	==External links==		==External links==

Michel Lamontagne at 02:57, 4 August 2019

2019-08-04T02:57:16Z

← Older revision		Revision as of 03:57, 4 August 2019
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	An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents.		An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents.

	== History of Airships ==		==History of Airships==
	The 1930s was a golden age of airships on [[Earth]]. Rigid airships were common. However, the Hindenburg disaster meant that airships fell out of favor. Non-rigid airships, called blimps, which were inflated with helium instead of flammable hydrogen found a niche in advertising, surveillance and sightseeing trips. Plans have come and gone for large airships to rival the Hindenburg, but these plans have lost funding and have never materialized.		The 1930s was a golden age of airships on [[Earth]]. Rigid airships were common. However, the Hindenburg disaster meant that airships fell out of favor. Non-rigid airships, called blimps, which were inflated with helium instead of flammable hydrogen found a niche in advertising, surveillance and sightseeing trips. Plans have come and gone for large airships to rival the Hindenburg, but these plans have lost funding and have never materialized.

	== Airships on Mars ==		==Airships on Mars==
	An airship might be useful for transport on [[Mars]].		An airship might be useful for transport on [[Mars]].

			=== Payload ===

			==Other cargo systems==

	~~== Other cargo systems ==~~
	*Large rovers: have to traverse rough terrain		*Large rovers: have to traverse rough terrain
	*Balloons: at the mercy of the wind		*Balloons: at the mercy of the wind
Line 15:		Line 17:

	===Advantages===		===Advantages===

	*Hydrogen is a more effective lifting gas in the CO2 rich Martian [[atmosphere]]		*Hydrogen is a more effective lifting gas in the CO2 rich Martian [[atmosphere]]
	*Hydrogen is not flammable in the Martian atmosphere		*Hydrogen is not flammable in the Martian atmosphere

	===Disadvantages===		===Disadvantages===
	*The stronger [[radiation]] ~~destroys~~ the hull.
			*The stronger [[radiation]] damages the hull faster than on Earth.
	*Due to the thin atmosphere the airship must be several times the size, reducing the efficiency heavily.		*Due to the thin atmosphere the airship must be several times the size, reducing the efficiency heavily.
	*The large surface of the airship results in strong forces during [[dust storms]].		*The large surface of the airship would results in strong forces during [[dust storms]].

			Payload on Mars

	==Open issues==		==Open issues==

	*What is the maximum payload under Martian conditions? There might be an absolute limit due to the physics.		*What is the maximum payload under Martian conditions? There might be an absolute limit due to the physics.
	*What is the minimum size of such an airship, considering the weight of the propellant system and fuel?		*What is the minimum size of such an airship, considering the weight of the propellant system and fuel?

	==External links==		==External links==

	*[http://mars.jpl.nasa.gov/technology/balloons/ NASA: Balloons on Mars]		*[http://mars.jpl.nasa.gov/technology/balloons/ NASA: Balloons on Mars]

	[[Category: Surface Vehicles]]		[[Category: Surface Vehicles]]

Jburk at 18:39, 18 December 2018

2018-12-18T18:39:24Z

← Older revision		Revision as of 19:39, 18 December 2018
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	*[http://mars.jpl.nasa.gov/technology/balloons/ NASA: Balloons on Mars]		*[http://mars.jpl.nasa.gov/technology/balloons/ NASA: Balloons on Mars]

	[[Category: ~~Technology]]~~		[[Category: Surface Vehicles]]
	~~[[Category: Transport~~]]

Farred: capitalization

2013-06-12T02:54:00Z

capitalization

← Older revision		Revision as of 03:54, 12 June 2013
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	===Advantages===		===Advantages===
	*Hydrogen is a more effective lifting gas in the CO2 rich ~~martian~~ [[atmosphere]]		*Hydrogen is a more effective lifting gas in the CO2 rich Martian [[atmosphere]]
	*Hydrogen is not flammable in the Martian atmosphere		*Hydrogen is not flammable in the Martian atmosphere

Line 24:		Line 24:

	==Open issues==		==Open issues==
	*What is the maximum payload under ~~martian~~ conditions? There might be an absolute limit due to the physics.		*What is the maximum payload under Martian conditions? There might be an absolute limit due to the physics.
	*What is the minimum size of such an airship, considering the weight of the propellant system and fuel?		*What is the minimum size of such an airship, considering the weight of the propellant system and fuel?

T.Neo at 12:48, 7 August 2008

2008-08-07T12:48:34Z

← Older revision		Revision as of 13:48, 7 August 2008
Line 6:		Line 6:
	== Airships on Mars ==		== Airships on Mars ==
	An airship might be useful for transport on [[Mars]].		An airship might be useful for transport on [[Mars]].


			== Other cargo systems ==
			*Large rovers: have to traverse rough terrain
			*Balloons: at the mercy of the wind
			*Railways: Need thousands of miles of track
			*Aircraft: Need more fuel then airships

	===Advantages===		===Advantages===

Rfc: disadvantages, open issues, external links

2008-08-06T20:21:23Z

disadvantages, open issues, external links

← Older revision		Revision as of 21:21, 6 August 2008
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	An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents.		An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents.


	== History of Airships ==		== History of Airships ==
	The 1930s was a golden age of airships. Rigid airships were common. However, the Hindenburg disaster meant that airships fell out of favor. Non-rigid airships, called blimps, which were inflated with helium instead of flammable hydrogen found a niche in advertising, ~~survaillence~~ and sightseeing trips. Plans have come and gone for large airships to rival the Hindenburg, but these plans have lost funding and have never materialized.		The 1930s was a golden age of airships on [[Earth]]. Rigid airships were common. However, the Hindenburg disaster meant that airships fell out of favor. Non-rigid airships, called blimps, which were inflated with helium instead of flammable hydrogen found a niche in advertising, surveillance and sightseeing trips. Plans have come and gone for large airships to rival the Hindenburg, but these plans have lost funding and have never materialized.


	== Airships on Mars ==		== Airships on Mars ==
	An airship ~~is ideal~~ for transport on Mars. ~~Advantages include:~~		An airship might be useful for transport on [[Mars]].

	*Hydrogen is a more effective lifting gas in the CO2 rich martian atmosphere		===Advantages===
			*Hydrogen is a more effective lifting gas in the CO2 rich martian [[atmosphere]]
	*Hydrogen is not flammable in the Martian atmosphere		*Hydrogen is not flammable in the Martian atmosphere

			===Disadvantages===
			*The stronger [[radiation]] destroys the hull.
			*Due to the thin atmosphere the airship must be several times the size, reducing the efficiency heavily.
			*The large surface of the airship results in strong forces during [[dust storms]].

			==Open issues==
			*What is the maximum payload under martian conditions? There might be an absolute limit due to the physics.
			*What is the minimum size of such an airship, considering the weight of the propellant system and fuel?

			==External links==
			*[http://mars.jpl.nasa.gov/technology/balloons/ NASA: Balloons on Mars]

			[[Category: Technology]]
			[[Category: Transport]]

T.Neo: New page: An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents. == H...

2008-08-06T07:46:52Z

New page: An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents. == H...

New page

An '''Airship''' is a lighter then air craft that is streamlined and possesses engines. It has more control over its position then a balloon, which is at the mercy of the currents.

== History of Airships ==
The 1930s was a golden age of airships. Rigid airships were common. However, the Hindenburg disaster meant that airships fell out of favor. Non-rigid airships, called blimps, which were inflated with helium instead of flammable hydrogen found a niche in advertising, survaillence and sightseeing trips. Plans have come and gone for large airships to rival the Hindenburg, but these plans have lost funding and have never materialized.

== Airships on Mars ==
An airship is ideal for transport on Mars. Advantages include:

*Hydrogen is a more effective lifting gas in the CO2 rich martian atmosphere
*Hydrogen is not flammable in the Martian atmosphere