AMERICAN TRANSPORTATION CORPORATION Download PDF Report
Orion Bus Industries submitted a model Orion VI, diesel-powered 33 seat/40-foot bus, for a partial STURAA test in the 12 year/500,000 mile category. The Federal Transit Administration determined that 5.7 Structural Durability Test would be performed. The odometer reading at the time of delivery was 3 kilometers. Testing started on February 9, 2000, and was completed on March 23, 2001. The Check-In section of the report provides a description of the bus and specifies its major components.
The primary part of this test was the Structural Durability Test, which also provides the information for the Maintainability and Reliability results. The Structural Durability Test started on March 28, 2000 and was completed on March 22, 2001.
The interior of the bus is configured with seating for 33 passengers including the driver. Free floor space will accommodate 41 standing passengers resulting in a potential load of 74 persons. At 150 lbs per person, this load results in a calculated gross vehicle weight of 39,180 lbs. The seated load weight segments of the Structural Durability Test was performed at 34,070 lbs and the final segment of the test was performed at a curb weight of 29,250 lbs. Durability driving resulted in several failures that required unscheduled maintenance. A description of failures, and a complete and detailed listing of scheduled and unscheduled maintenance, is provided in the Maintainability section of this report.
The Reliability section compiles failures that occurred during structural durability testing. Breakdowns are classified according to subsystems. The data in this section are arranged so that those subsystems with more frequent problems are apparent. The problems are listed by class as defined in Section 2. The test bus encountered no Class 1 or Class 2 failures. Of the sixty-two reported failures, forty-four were Class 3 and eighteen were Class 4.