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Pastimes : Common Errors in (American)English
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To: SteveJerseyShore who wrote (153)6/11/1999 1:42:00 AM
From: Scrumpy  Read Replies (1) of 228
 
ah, ah, ah...a rocket "motor" runs on solid propellants. A rocket "engine" is a term used for contraptions running on liquid and/or gaseous propellants, such as liquid oxygen (LOx) and hydrogen (H2). Some make distinctions between these two terms based on whether the driving force has moving parts.
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