Outdoor Power Equipment worked example

Blade Balance Yield at 99% target balance pass rate: a worked example

What does the result look like when target balance pass rate reaches 99%? The full calculation is worked below with real intermediate numbers. a blade line or quality team needs a clean first-pass balance rate and a gap to target for a tier board or supplier review

The inputs for this scenario

  • Blades passing balance: 242 blades (unchanged)
  • Blades balance-tested: 250 blades (unchanged)
  • Target balance pass rate: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Blade balance pass rate = blades passing balance ÷ blades balance-tested × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 96.8 % for blade balance pass rate, the number this scenario is built around.
  • At this operating point the engine returns 2.2 points for gap to balance target.
  • At this operating point the engine returns 242 blades for blades passing balance.
  • At this operating point the engine returns 250 blades for blades balance-tested.

How this compares with the baseline

  • Against the tool's baseline example, where target balance pass rate sits at 95% and the headline result is 96.8 %, this scenario lands almost exactly on the baseline at 96.8 %.
  • A figure at this level is achievable when target balance pass rate is genuinely sustained, not just peaked for a shift. Pass rate alone does not reveal whether failures are heavy-end or light-end, or whether they cluster on one fixture; pair it with the balancer's correction-weight data to find root cause.

Results at a glance

  • Blade balance pass rate: 96.8 % (headline result)
  • Gap to balance target: 2.2 points
  • Blades passing balance: 242 blades
  • Blades balance-tested: 250 blades

Run it with your numbers

  • Every input above is editable in the live Blade Balance Yield calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.