Centerline length measurements are 3-dimensional measurements.
The 3 dimensions are:
• | Length (distance between 2 points when height is parallel to centerline). |
• | Height (measurement is parallel to the datum plane). |
• | Width (measurement is parallel to the centerline). |
When reading dimension charts, horizontal width and length dimensions
of the underbody are shown as viewed from the bottom of the underbody. Vertical
dimensions are shown from the side of the underbody and use the datum
plane as a base for all vertical (height) measurements.