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wikipedia>Vanisaac: /* Categorization */clean up per WP:CAT#T and WP:AWBREQ add template:Sandbox other

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Categorization: clean up per WP:CAT#T and WP:AWBREQ add template:Sandbox other

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{{Documentation subpage}}

===Scope===
This template is used exclusively for ''flown'' rocket engines used on [[Orbital spaceflight|orbital]] [[launch vehicle]]s. The decision is on the intent of the vehicle, a suborbital mission of an orbital launch vehicle sill counts. [[Sub-orbital spaceflight|Sub-orbital]] launch vehicles ''per se'' are excluded, anything atmospheric in not part of this. Pure orbital spacecraft, i.e. the payload of a launch vehicle, does not count.

'''Acceptable'''
* [[Launch vehicle|Orbital launch vehicle]] main propulsion that was also used for suborbital vehicles. '''Example''': [[Algol (rocket stage)|Algol]].
* Orbital launch vehicle upper stages even if they are pure space vehicles but are never launched as payloads. '''Example''': [[AVUM]]'s [[RD-843]].
* Rockets engine of orbital upper stages, even if they are also used on spacecraft. '''Example''': [[S5.92]], used on [[Fregat]], but also on [[Phobos program#Phobos 1|Phobos 1]] and [[Phobos program#Phobos 2|Phobos 2]] [[Mars]] [[spacecraft]].
* Main propulsion of stages that were also used as spacecraft: '''Example''': [[RM-81 Agena|Agena]]'s [[XLR81]].
* Military engines when used for non-military or non weaponized applications. '''Example''': [[M55E1|SR-118]] used on both [[LGM-30 Minuteman|Minuteman III]] [[ICBM]] and the [[Minotaur IV]] launch vehicle or the [[Dnepr (rocket)|RD-869]] used on the upper stage of [[Dnepr (rocket)|Dnepr]] and the [[R-36 (missile)|R-36 MUTTH]] [[MIRV]].

'''NOT acceptable''':
* [[Spacecraft propulsion]] engines and motors. '''Example''': [[R-4D]].
* [[Rocket engine|Thruster]]s if they are used as the main propulsion of the spacecraft. '''Example''': [[SpaceX Dragon|Dragon]]'s [[Draco (rocket engine family)|Draco]].
* Military payloads like [[Maneuverable reentry vehicle|MARV]], [[Multiple independently targetable reentry vehicle|MIRV]] and other [[Thermonuclear weapon|warheads]] breaking engines never used on non weaponized versions. '''Example''': most [[Intercontinental ballistic missile|ICBM]].
* [[Rocket engine|Thruster]]s when used exclusively for [[Orbital station-keeping|station keeping]], [[attitude dynamics and control|attitude control]], [[reaction control system]] and/or as [[ullage motor]].

===Acceptability===
This template is for rocket engines that have flown or are expected to fly in the near term. Engines not yet flown should be in ''Italics''. The criteria for acceptability of unflown rocket engines are:

'''Option A'''
* The engine has an article of at least [[Wikipedia:WikiProject_Rocketry/Assessment#Quality scale|Start class]].
* The engine has been test fired, at least at the flight component or sub-scale level.
* The intent is for the rocket to be used in an orbital launch vehicle in the next five years.
''Examples:'' [[SCE-200]] or [[Raptor (rocket engine)]] as of 2016.

'''Option B'''
* The engine has an article of at least [[Wikipedia:WikiProject_Rocketry/Assessment#Quality scale|Start class]].
* The engine has been test fired at the flight model level (i.e. as intended to fly).
* The engine was intended for use in an orbital launch vehicle but it was never actually used.
''Example:'' [[RD-270]] as of 2016, but '''NOT''' the [[Integrated Powerhead Demonstrator|IPD]] which lacked a thrust chamber and was not intended to fly.

===Categorization===
Some guidance for placing rocket engines on the template:
*'''Country''': the country that counts is the designer's country. So, for example, the [[RD-120]] was designed in Russia by [[NPO Energomash]], and built in Ukraine by [[Yuzhmash]], but counts as Russian. For countries that have disappeared, we display their main [[successor state]], e.g. Russia for the Soviet Union.
*'''Propellant''': Care should be used not to increase too much the number of propellants. Exotic propellants like the [[RD-119]] or the Nth variation of [[Hydrazine]] should all be clumped together.
*'''Rocket families''': Only different number variations should be included, and should be grouped by ''comma separation'' or, in more than two sequential numbers, through the use of the ''to'' word. For example the [[RD-0210]] is presented as [[RD-0210|RD-0202 to RD-0206, RD-0208 to 0213]], but the whole [[Merlin (rocket engine family)|Merlin 1]] family goes in one entry, not ''A'', ''B'', ''C'', ''D'', ''D Vacuum'' distinction.
*'''Ordering''': within each propellant and country the engines order should be ''strictly alphabetical''.


{{Spaceflight navboxes}}

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wikipedia>Vanisaac: /* Categorization */clean up per WP:CAT#T and WP:AWBREQ add template:Sandbox other