What is BL and WL?
The Z-axis is positive pointing upward and is known as the water line (WL). The Y-axis is usually called the butt line (BL) but is sometimes referred to as the wing station (WS) as well.
What is WL Aviation?
Water lines (WL) designate location in the height of the aircraft, from ground up.
What is aircraft water line?
In aircraft design, the term “waterline” refers to the vertical location of items on the aircraft. This is (normally) the Z axis of an X × Y × Z coordinate system, the other two axes being the fuselage station ( X ) and buttock line ( Y ).
What is the fuselage station?
i. The location along the longitudinal axis of an airplane that is a given number of inches ahead of or behind the datum, reference plane. ii. The point on the fuselage where external stores or fuel tanks are carried, such as against wing stations.
Do airplanes have glass windows?
The main thing to know is that aircraft cabin windows are not made of glass, but with something called “stretched acrylic”. A typical commercial airplane passenger window, showing outer pane, inner (or middle) pane with bleed hole, and scratch pane.
What is TL and BL in drawing?
Other directions can be indicated by a. coordinate grid where the individual lines represent Water Line (WL), Buttock Line (BL), and Traverse. Line (TL).
What is a fuselage station number?
Fuselage stations (Fus. Sta. or FS) are numbered in inches from a reference or zero point known as the reference datum. The distance to a given point is measured in inches parallel to a center line extending through the aircraft from the nose through the center of the tail cone.
What is datum of aircraft?
Datum (reference datum)—an imaginary vertical plane or line from which all measurements of arm are taken. The datum is established by the manufacturer. Once the datum has been selected, all moment arms and the location of CG range are measured from this point.
What is a station number Aviation?
The station numbers are reference points on the airframe of an aircraft that represent a vertical cross-sectional cut out of the airframe. They will start at a nominal point in front of the aircraft (usually a few inches) and work their way aft at 1 inch intervals..
How are fuselage stations measured?
Where is the water line in an aircraft?
Water Lines: A water line is a horizontal plane that is parallel to the passenger floor.
Is airplane windshield bulletproof?
The windows on a modern airliner are actually made up of multiple layers, usually three, of acrylic with a plastic inner cover. Since the windows are essentially made from plexiglass, they aren’t bulletproof.
