Which way the wind blows
Have you ever wondered if headwinds & tailwinds cancel out over a flying lifetime? In years gone by the answer might depend on if you're a the-glass-is-half-full or a the-glass-is-half-empty kind of person. But my latest GPS has an average ground speed function &, if you don't reset it after each flight, it keeps displaying the cumulative average.
After 6 months its reading 80.5 kts for the R22 which is pretty close to the still air speed. So I've decided that yes, the long term average of whizzing along at 120 kts like an R44 some days & counting the fence posts at 40 kts on other days, is in fact 80 kts.