Also known as: PP-, PP.
PP has various meanings in the Energy category. Discover the full forms, definitions, and usage contexts of PP in Energy.
A powered aircraft's source of power, usually either a jet engine or a conventional engine and propeller. The complete assemblage or installation of engine or engines with accessories (induction system, cooling system, ignition system, etc.) that generates the motive power for a self-propelled vehicle or vessel such as an aircraft, rocket, etc.
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