Ammonium perchlorate composite propellant

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article has an unclear citation style. The references used may be made clearer with a different or consistent style of citation and footnoting. (April 2013) (Learn how and when to remove this message) This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (September 2010) (Learn how and when to remove this message) (Learn how and when to remove this message)

Ammonium perchlorate composite propellant (APCP) is a solid rocket propellant. It differs from many traditional solid rocket propellants such as black powder or zinc-sulfur, not only in chemical composition and overall performance but also by being cast into shape, as opposed to powder pressing^{[broken anchor]} as with black powder. This provides manufacturing regularity and repeatability, which are necessary requirements for use in the aerospace industry.