Aerospace & Defense Manufacturing worked example

Space Cleanliness Inspection Load at 63% re-clean and documentation allowance: a worked example

Push re-clean and documentation allowance up to 63% and the picture changes. This example computes every intermediate figure at that operating point. a space systems quality engineer needs to plan cleanliness inspection effort before satellite hardware shipment or integration

The inputs for this scenario

  • Space hardware cleanliness checks: 68 checks (unchanged)
  • Cleanliness inspection pace: 1.1 checks/min (unchanged)
  • Re-clean and documentation allowance: 63 % (raised for this scenario; the documented default is 55)

Working through the calculation

  • Applying the documented formula (Base cleanliness inspection time = cleanliness checks รท inspection pace) to the inputs above produces each figure below.
  • At this operating point the engine returns 101 cleanliness hr for space cleanliness inspection load, the number this scenario is built around.
  • At this operating point the engine returns 61.82 cleanliness hr for base cleanliness inspection time.
  • At this operating point the engine returns 63 % for re-clean and documentation allowance.
  • At this operating point the engine returns 1.1 checks/min for cleanliness inspection pace.

How this compares with the baseline

  • Against the tool's baseline example, where re-clean and documentation allowance sits at 55% and the headline result is 95.82 cleanliness hr, this scenario comes in 5.16% above the baseline at 101 cleanliness hr.
  • It computes total cleanliness inspection labor by dividing checks by inspection pace and then adding a percentage allowance for re-clean and documentation effort. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Space cleanliness inspection load: 101 cleanliness hr (headline result)
  • Base cleanliness inspection time: 61.82 cleanliness hr
  • Re-clean and documentation allowance: 63 %
  • Cleanliness inspection pace: 1.1 checks/min

Run it with your numbers

  • Every input above is editable in the live Space Cleanliness Inspection Load calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.