Aerospace & Defense Manufacturing worked example

Aerospace Lot Traveler Load at 23% routing rework time allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop routing rework time allowance to 23%, then walk the calculation through step by step. Estimate lot traveler administration hours from traveler operations, processing pace, and routing correction allowance.

The inputs for this scenario

  • Traveler operation signoffs per lot: 185 signoffs (held at the documented default)
  • Inspector signoff pace: 4.2 signoffs/min (held at the documented default)
  • Routing rework time allowance: 23 % (the input this scenario stresses; the baseline uses 32)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base traveler processing time = traveler signoffs รท processing pace.
  • Aerospace lot traveler load works out to 54.18 traveler hr at these inputs, and this is the headline figure for the scenario.
  • Base traveler processing time works out to 44.05 traveler hr at these inputs.
  • Routing correction allowance works out to 23 % at these inputs.
  • Traveler processing pace works out to 4.2 signoffs/min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where routing rework time allowance sits at 32% and the headline result is 58.14 traveler hr, this scenario comes in 6.82% below the baseline at 54.18 traveler hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to routing rework time allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes a steady signoff pace; first-article or unfamiliar routings run far slower than the rate suggests, so treat the result as a recurring-build estimate.

Results at a glance

  • Aerospace lot traveler load: 54.18 traveler hr (headline result)
  • Base traveler processing time: 44.05 traveler hr
  • Routing correction allowance: 23 %
  • Traveler processing pace: 4.2 signoffs/min

Run it with your numbers

  • To rerun this with your own numbers, open the live Aerospace Lot Traveler Load calculator, set routing rework time allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.