Outdoor Power Equipment worked example

Production Ramp Planner at 86% ramp-phase line uptime: a worked example in outdoor power equipment

This scenario runs the production ramp planner calculation on the strong side: 86% ramp-phase line uptime, with every other input held at its documented default. a launch or planning team needs realistic ramp output for a new model before committing launch dates

The inputs for this scenario

  • Units built per day at ramp rate: 120 units / day (unchanged)
  • Ramp build days: 30 days (unchanged)
  • Ramp-phase line uptime: 86 % (raised for this scenario; the documented default is 75)
  • Ramp-phase first-pass yield: 88 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross ramp build = units built per day at ramp rate × ramp build days) to the inputs above produces each figure below.
  • At this operating point the engine returns 2,724 units for good units buildable during ramp, the number this scenario is built around.
  • At this operating point the engine returns 3,600 units for gross ramp build.
  • At this operating point the engine returns 504 units for ramp downtime loss.
  • At this operating point the engine returns 372 units for ramp yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where ramp-phase line uptime sits at 75% and the headline result is 2,376 units, this scenario comes in 14.67% above the baseline at 2,724 units.
  • Use it during new-product launch or seasonal ramp planning to size the achievable build before the line reaches mature takt time and yield. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Good units buildable during ramp: 2,724 units (headline result)
  • Gross ramp build: 3,600 units
  • Ramp downtime loss: 504 units
  • Ramp yield loss: 372 units

Run it with your numbers

  • Every input above is editable in the live Production Ramp Planner calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.