after bottom center/after bottom dead center
- after bottom center/after bottom dead center
The position of a piston in the cylinder of a reciprocating engine after the crankshaft, turning in its normal direction of rotation, has caused the piston to pass the bottom of its stroke and start back up.
As soon as after bottom center point is reached, the piston changes its direction of movement from downward to upward.
Aviation dictionary.
2014.
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