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Apollo abort modes
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== Mode III == A Mode III type abort would be used when a Mode II type would risk the spacecraft coming down over land, or landing in the cold water of the [[Atlantic Ocean|North Atlantic]]. The CSM would separate from the rocket in the same manner as a Mode II abort, but would additionally use the SPS engine to make either a posigrade burn (''Mode IIIA'') or retrograde burn (''Mode IIIB'') to land in a specific area on the eastern side of the Atlantic. Mode III was only available as a primary abort mode for 10β15 seconds during a Saturn IB launch and was only used as a backup abort mode for Saturn V launches, in case of an abort requiring the immediate landing of the spacecraft.
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