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This template is used exclusively forflown rocket engines used onorbitallaunch vehicles. The decision is on the intent of the vehicle, a suborbital mission of an orbital launch vehicle sill counts.Sub-orbital launch vehiclesper 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
NOT acceptable:
This template is for rocket engines that have flown or are expected to fly in the near term. Engines not yet flown should be inItalics. The criteria for acceptability of unflown rocket engines are:
Option A
Examples:SCE-200 orRaptor (rocket engine) as of 2016.
Option B
Example:RD-270 as of 2016, butNOT theIPD which lacked a thrust chamber and was not intended to fly.
Some guidance for placing rocket engines on the template:
Place{{Rocket engines}} at the end of an article, but above any categories.
This template'sinitial visibility currently defaults toautocollapse, meaning that if there is another collapsible item on the page (anavbox, sidebar, ortable with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the|state=parameter may be used:
{{Rocket engines|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.{{Rocket engines|state=expanded}} will show the template expanded, i.e. fully visible.{{Rocket engines|state=autocollapse}} will show the template autocollapsed, i.e. if there is another collapsible item on the page (anavbox, sidebar, ortable with the collapsible attribute), it is hidden apart from its title bar, but if not, it is fully visible.