Aviation Dictionary
فواصل مساوی بر حسب اینچ از مرکز محور ملخِ هواپيما و يا هلی كوپتر تا نوک آن.
The distance, measured in inches, between the center line of the propeller shaft and a location along the blade of a propeller. blade station measurements are used to identify locations along the blade of a propeller.