Kent's extensive experience as a Principal Engineer in the Aerospace industry, combined with his skills in Six Sigma and Systems Engineering, positions him for a high hourly rate. Considering his 41 years of experience, I've estimated his rate to be around $250 per hour, which is in line with industry standards for experienced engineers in this field. This rate takes into account his location in Orangevale, California, and the demand for skilled professionals in the Aerospace sector.