A stairway, ladder, ramp or other safe means of egress must be located in trench excavations that are 4 feet (1.22 m) or more in depth so as to require no more than 25 feet (7.62 m) of lateral travel for employees. Designed to prevent slipping.
Pitching wedges have a loft of between 46 and 48 degrees. Approach wedges have lofts between 50 and 52 degrees. The extra loft on the approach wedge helps it to get up in the air, but decreases the distance hit.
Angle of attack (AOA): The acute angle between the chord line of the airfoil and the direction of the relative wind. Report an issue with this definition. AOA or a: Ã¡ the angle between the chord line of the wing of an aircraft and the vector representing the relative motion between the aircraft and the. atmosphereeport an issue with this definition. The acute angle formed between the chord line of an airfoil and the direction of the air that strikes the airfoil. Report an issue with this definition. The acute angle between the chord line of a propeller blade and the relative wind.