The Wheels on the Bus Go Round and Round … Until They Don’t

April 26, 2022

“The wheels on the bus go round and round … until they don’t” – Case study involving the separation of the rear axle from a school bus This case study involves the separation of the rear axle from a school bus. The school bus was slowing down while approaching an intersection when the rear axle...

When Vehicles Appear to Function or Perform in Unexpected Ways

G. Wayne Maltry, AMT, BSAE, MSME, PE

March 7, 2022

As an accident reconstructionist and a mechanical engineer that also has electrical engineer training and experience, I have often been asked to examine a vehicle that has been involved in a collision to determine if its function or performance was different than the way a driver indicates it was...

Centrifugal Compressors – Simultaneously Simple and Complex

Chris S. Spies, P.E.

December 28, 2021

Centrifugal compressors (aka- turbocompressors) though you may not be familiar with them, we need not look far to find examples in our daily lives. They can be found on planes, trains and automobiles in various sizes and shapes. They are particularly popular on aircraft where they are used to do...

Little Black Box - Big Data

Kenny A. McClure, P.E., CFEI

August 17, 2021

Most automobiles and light-duty trucks are equipped with an electronic recording device, also referred to as a “Black Box,” or an “airbag control module” that may contain data related to a crash. The data in a vehicle’s Black Box plays a big role in collision reconstruction. Bosch Crash Data...

Is That Truck Driver Safe?

G. Wayne Maltry, AMT, BSAE, MSME, PE

April 8, 2021

Have you ever wondered, as you passed a heavy truck on the interstate, whether that driver was on top of his game or not, that is, is he as alert as he should be to operate that 18-wheeler?

Wasp Disables Tractor-Trailer

Anthony (Tony) A. Yurko, III, M.S.M.E., P.E., CFEI, CVFI

April 16, 2020

A tractor-trailer traveling on an interstate, hauling a load weighing an estimated 50,000 pounds, suddenly catches on fire. The culprit? A single wasp.

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The Wheels on the Bus Go Round and Round … Until They Don’t

When Vehicles Appear to Function or Perform in Unexpected Ways