Apprentice question
Verify first
Verify before you commit. Cheap to catch now.
Turning vanes steer air through a sharp elbow. If the vane profile is backward, the air hits the wrong side and creates turbulence instead of smoothing the turn.
['The journeyman asks you to field-assemble the internal turning vanes into a rectangular 90^\\circ elbow on the ground. You slide the vane track into the side rails backward, facing the hollow cups away from the incoming airflow.', 'Turning vanes steer air through a sharp elbow. If the vane profile is backward, the air hits the wrong side and creates turbulence instead of smoothing the turn. The likely recovery is to check the condition, correct prep/setup if it is within your assignment, and bring the foreman clean information before the work creates rework overhead.']