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Found 3 results

  1. Hi everybody! I am Thomas, i work as a forecaster for the navy in Germany. This is my first post in this group. I've looked around in the FAQ's and poked around in google but can't find my question covered there. The question is: How is turbulence caused by heavy storm or hurricane force winds in the lowest layers, say below 2000ft gnd, affecting helicopters? Are there any rules of thumb forecasting severe turbulence for helicopters in strong wind situations? For fixed wing a/c there is a rule of thumb which is: If the vector difference between surface wind and wind at 2000ft gnd exceeds 20
  2. Hi all, I understand in moderate+ turbulence we want to reduce airspeed to reduce structural loads, but why do you think in the R22 POH it states the number 57 kts as the absolute minimum? R22 POH Limitations Section: "Adjust forward airspeed to between 60 knots indicated airspeed (KIAS) and 0.7 Vne, but no lower than 57 KIAS, upon inadvertently encountering moderate, severe, or extreme turbulence." I guess it is probably a performance issue - to be able to maintain best climb maybe, but that number is 53 kts... Any ideas? Without understanding more I think I would just aim for 60kt
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