Sentence:  I had no conception of what it meant to ”<WSD>wring out</WSD>" an airplane until I rode with that magnificent man, and I can't remember his name. After he had scorched the paint off that AT-6, he very quietly said, ”Okay, take her back to the field." 
Meaning of the word marked with <WSD> tags:  To push (an aircraft) to its performance limits; to push the envelope.