Amendment 0008 - D16 - Ladder 251 - Pierce Turning Performance Analysis.pdf

This is a Turning Performance Analysis document for a Pierce aerial device, dated August 21, 2009. The document provides technical specifications and turning radius calculations for a vehicle configuration used in aerial applications.

The analysis details vehicle parameters including an inside cramp angle of 45.00 degrees, axle track of 82.92 inches, wheel offset of 4.68 inches, tread width of 117.00 inches, chassis overhang of 78.00 inches, additional bumper depth of 19.00 inches, front overhang of 97.00 inches, and a wheelbase of 233.50 inches. The calculated turning radii are specified as 18 feet 4 inches for inside turn, 33 feet 4 inches for curb to curb, and 38 feet 11 inches for wall to wall. The document identifies specific components by PRIDE number, including the front axle (Oshkosh TAK-4 non-drive, 22,800 lb capacity), front wheels (aluminum Alcoa, 22.50" x 12.25"), front tires (Michelin XFE highway rated), chassis (Velocity 31K single axle), front bumper (19" extended), and aerial device (750# tip load, 75' contender HAL single axle). Notes indicate that the actual inside cramp angle may vary due to specialized options, and the curb-to-curb turning radius calculation assumes a 9.00-inch curb.