Road Flare - Revision history

Azera: Add stationpedia entry, update infobox, update burn time, add notes about flare gun, edit note about energy released as no longer accurate

2026-04-09T05:26:03Z

Add stationpedia entry, update infobox, update burn time, add notes about flare gun, edit note about energy released as no longer accurate

← Older revision		Revision as of 05:26, 9 April 2026
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	[[~~Category~~:~~Tools~~]]		{{Itembox
			\| name = Road Flare
			\| image = [[File:ItemRoadFlare.png]]
			\| stacks = 20
			\| paintable = yes
			\| recipe_machine1 = Tool Manufactory
			\| recipe_cost1 = 1g Iron
			\| prefabhash = 871811564
			\| prefabname = ItemRoadFlare
			\| slot_class = SlotClass.Flare
			\| sorting_class = SortingClass.Default
			}}

			{{Stationpedia\|Designed to burn anywhere in the Solar System, the EZC magnesium fusee supplies its own oxygen to fuel combustion, and dispel the eternal night of space.}}

	~~{{Itembox~~		= Description =
	~~\| name =~~ Road ~~Flare~~		Road Flares are part of the starting gear and provide short-duration illumination with a distinct red glow. Each flare burns for approximately 3 minutes before burning out. While lit, the flare continuously releases heat [[energy]] into the surrounding [[atmosphere]], and can ignite combustible gas mixtures in the area. They can be painted with [[Spray Paint]] to change their glow color.
	~~\| image =~~ [[~~File:{{#setmainimage:ItemRoadFlare.png}}~~]]
	~~\| stacks = 20x~~
	~~\| createdwith =~~ [[~~Fabricator~~]], [[~~Tool Manufacturer~~]]
	~~\| cost = 1g [[Iron Ingot]]~~
	}}

	=~~= Description =~~=		= Usage =
	[[~~Road Flare \| Road Flares~~]] ~~are part of~~ the ~~[[Starting Gear\| Starting Gear]]~~. ~~They burn for a short period of time and give out a distinct red glow~~ in ~~a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration~~.		Hold secondary use to [[light]] a flare while holding it. Lit flares can be thrown by pressing the throw key. A single flare separates from the stack when lit, leaving the remainder in hand.

	Flares ~~can be painted with [[Spray Paint]]~~ to ~~change their color, loaded as ammunition on~~ the [[~~Flare Gun~~]]~~'s internal magazine~~, ~~and placed inside the~~ [[~~Portable Gas Tank~~]]~~'s canister slot to ignite combustible mixtures stored inside~~.		Flares add heat to the local atmosphere each [[tick]] while burning. This makes them useful as a cheap heat source, but caution is required around combustible gas mixtures. If ignition is a concern, consider using a [[Chem Light]] instead.

	~~== Use ==~~		A lit flare placed inside a container with an internal atmosphere (such as a [[Portable Gas Tank]]) will heat and potentially ignite the gas stored inside.
	~~Hold right click~~ with ~~it selected on-hand to light it. They are throwable holding Q.~~
	~~It can generate heat and could be use~~ as ~~a cheap heat source to heat up a room or portable gas tank.~~
	~~Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using~~ a [[~~Chem Light~~]] ~~instead~~.

	~~The total heat energy of one road flare used to~~ be ~~600kJ. However~~, ~~current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures~~ in ~~rooms~~.		Road flares can also be loaded into a [[Flare Gun]] as ammunition, in which case the fired flare deploys a parachute and descends slowly to provide overhead illumination.

Maintenance script: Fix broken headlines from translation cleanup

2026-03-08T17:39:37Z

Fix broken headlines from translation cleanup

← Older revision		Revision as of 17:39, 8 March 2026
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	}}		}}

	== Description == [[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]]. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.		== Description ==
			[[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]]. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.

	Flares can be painted with [[Spray Paint]] to change their color, loaded as ammunition on the [[Flare Gun]]'s internal magazine, and placed inside the [[Portable Gas Tank]]'s canister slot to ignite combustible mixtures stored inside.		Flares can be painted with [[Spray Paint]] to change their color, loaded as ammunition on the [[Flare Gun]]'s internal magazine, and placed inside the [[Portable Gas Tank]]'s canister slot to ignite combustible mixtures stored inside.

	== Use == Hold right click with it selected on-hand to light it. They are throwable holding Q.		== Use ==
			Hold right click with it selected on-hand to light it. They are throwable holding Q.
	It can generate heat and could be use as a cheap heat source to heat up a room or portable gas tank.		It can generate heat and could be use as a cheap heat source to heat up a room or portable gas tank.
	Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using a [[Chem Light]] instead.		Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using a [[Chem Light]] instead.

	The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.		The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.

Maintenance script: Remove translation markup (automated)

2026-03-08T17:17:55Z

Remove translation markup (automated)

← Older revision		Revision as of 17:17, 8 March 2026
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	[[Category:Tools]]		[[Category:Tools]]
	~~<languages />~~
	~~<translate>~~
	~~<!--T:1-->~~
	{{Itembox		{{Itembox
	\| name = Road Flare		\| name = Road Flare
Line 11:		Line 10:
	}}		}}

	== Description == ~~<!--T:2-->~~		== Description == [[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]]. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.
	[[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]]. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.

	Flares can be painted with [[Spray Paint]] to change their color, loaded as ammunition on the [[Flare Gun]]'s internal magazine, and placed inside the [[Portable Gas Tank]]'s canister slot to ignite combustible mixtures stored inside.		Flares can be painted with [[Spray Paint]] to change their color, loaded as ammunition on the [[Flare Gun]]'s internal magazine, and placed inside the [[Portable Gas Tank]]'s canister slot to ignite combustible mixtures stored inside.

	== Use == ~~<!--T:3-->~~		== Use == Hold right click with it selected on-hand to light it. They are throwable holding Q.
	Hold right click with it selected on-hand to light it. They are throwable holding Q.
	It can generate heat and could be use as a cheap heat source to heat up a room or portable gas tank.		It can generate heat and could be use as a cheap heat source to heat up a room or portable gas tank.
	Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using a [[Chem Light]] instead.		Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using a [[Chem Light]] instead.

	The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.		The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.
	~~</translate>~~

RA2lover: Paintability, placeability inside portable gas tanks, removed mentions of turning flares off and having them scattered around the spawn area

2025-10-30T20:06:24Z

Paintability, placeability inside portable gas tanks, removed mentions of turning flares off and having them scattered around the spawn area

← Older revision		Revision as of 20:06, 30 October 2025
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	== Description == <!--T:2-->		== Description == <!--T:2-->
	[[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]] ~~and are found scattered around the spawn area~~. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.		[[Road Flare \| Road Flares]] are part of the [[Starting Gear\| Starting Gear]]. They burn for a short period of time and give out a distinct red glow in a small area. In a zero atmosphere environment, a road flare burns for approximately 5 minutes and 5 seconds. Further testing required for different environments/configuration.

			Flares can be painted with [[Spray Paint]] to change their color, loaded as ammunition on the [[Flare Gun]]'s internal magazine, and placed inside the [[Portable Gas Tank]]'s canister slot to ignite combustible mixtures stored inside.

	== Use == <!--T:3-->		== Use == <!--T:3-->
	~~Press O to toggle the flare light on or off. (O might not be true)~~ Hold right click to light it. They are throwable holding Q.		Hold right click with it selected on-hand to light it. They are throwable holding Q.
	It can generate heat and could be use as a cheap heat source to heat up a room.		It can generate heat and could be use as a cheap heat source to heat up a room or portable gas tank.
	Beware it ~~could~~ ignite ~~H2 if both H2 and O2 exists in the room~~!		Beware as it can ignite combustible mixtures present around it! If this is a concern, consider using a [[Chem Light]] instead.

	The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.		The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.
	</translate>		</translate>

2603:7081:6D00:6462:63F5:5206:559D:6910 at 05:06, 26 August 2025

2025-08-26T05:06:16Z

← Older revision		Revision as of 05:06, 26 August 2025
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	Beware it could ignite H2 if both H2 and O2 exists in the room!		Beware it could ignite H2 if both H2 and O2 exists in the room!

	The total heat energy of one road flare is 600kJ. ~~Volume is constant in sealed rooms (8m^3 per one cube)~~, as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat ~~capacity, n is amount of matter~~ (~~in moles~~) ~~and T is temperature. As a reference~~, ~~one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.~~		The total heat energy of one road flare used to be 600kJ. However, current testing suggests that road flares no longer release any signficant heat (>5kJ), though may still ignite fuel mixtures in rooms.
	For example, with oxygen that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.

	~~Interestingly, this makes iron a theoretically better energy source than coal~~ in [[Solid Fuel Generator \| Solid Fuel Generator]] as 1 unit of coal generate 200kJ of energy and 1 road flare costs 1 iron. This depends on iron ore to iron conversion efficiency, and road flare to energy conversion method, and solid fuel generator heat energy output. Further testing required.
	</translate>		</translate>

70.55.68.39: Fixed a typo .. it was written " that means that means"

2024-08-15T03:54:43Z

Fixed a typo .. it was written " that means that means"

← Older revision		Revision as of 03:54, 15 August 2024
Line 20:		Line 20:

	The total heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.		The total heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.
	For example, with oxygen ~~that means~~ that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.		For example, with oxygen that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.

	Interestingly, this makes iron a theoretically better energy source than coal in [[Solid Fuel Generator \| Solid Fuel Generator]] as 1 unit of coal generate 200kJ of energy and 1 road flare costs 1 iron. This depends on iron ore to iron conversion efficiency, and road flare to energy conversion method, and solid fuel generator heat energy output. Further testing required.		Interestingly, this makes iron a theoretically better energy source than coal in [[Solid Fuel Generator \| Solid Fuel Generator]] as 1 unit of coal generate 200kJ of energy and 1 road flare costs 1 iron. This depends on iron ore to iron conversion efficiency, and road flare to energy conversion method, and solid fuel generator heat energy output. Further testing required.
	</translate>		</translate>

109.228.77.210 at 22:27, 11 July 2023

2023-07-11T22:27:07Z

← Older revision		Revision as of 22:27, 11 July 2023
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	The total heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.		The total heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.
	For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.		For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.

			Interestingly, this makes iron a theoretically better energy source than coal in [[Solid Fuel Generator \| Solid Fuel Generator]] as 1 unit of coal generate 200kJ of energy and 1 road flare costs 1 iron. This depends on iron ore to iron conversion efficiency, and road flare to energy conversion method, and solid fuel generator heat energy output. Further testing required.
	</translate>		</translate>

109.228.77.210 at 22:14, 11 July 2023

2023-07-11T22:14:51Z

← Older revision		Revision as of 22:14, 11 July 2023
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	Beware it could ignite H2 if both H2 and O2 exists in the room!		Beware it could ignite H2 if both H2 and O2 exists in the room!

	The heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.		The total heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.
	For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.		For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.
	</translate>		</translate>

109.228.77.210 at 20:38, 11 July 2023

2023-07-11T20:38:20Z

← Older revision		Revision as of 20:38, 11 July 2023
Line 19:		Line 19:
	Beware it could ignite H2 if both H2 and O2 exists in the room!		Beware it could ignite H2 if both H2 and O2 exists in the room!

	The heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.		The heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Q stands for heat energy, Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.
	For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.		For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.
	</translate>		</translate>

109.228.77.210 at 20:37, 11 July 2023

2023-07-11T20:37:40Z

← Older revision		Revision as of 20:37, 11 July 2023
Line 18:		Line 18:
	It can generate heat and could be use as a cheap heat source to heat up a room.		It can generate heat and could be use as a cheap heat source to heat up a room.
	Beware it could ignite H2 if both H2 and O2 exists in the room!		Beware it could ignite H2 if both H2 and O2 exists in the room!

			The heat energy of one road flare is 600kJ. Volume is constant in sealed rooms (8m^3 per one cube), as well as amount of matter, therefore only temperature and pressure are changed with heat energy, which is isochoric process. The equation for isochoric process is Q = Cv·n·ΔT, where Cv is molar heat capacity, n is amount of matter (in moles) and T is temperature. As a reference, one cubic volume of air (oxygen & nitrogen) at 100kPa and 20C has around 357 moles.
			For example, with oxygen that means that means that one flare per one cubic volume can raise from -66C and 70kPa to 20C and 100kPa. From 20C and 100kPa one flare per cubic volume would raise temperature to 106C and pressure to 129kPa.
	</translate>		</translate>