Positive headwindsI found a reason where head winds can be positive...... Not sure this applies to THTX since this applies to HIGH FLYERS !!!! Lol!!!!!!
However while on take-off and landing, headwinds are good because they allow you to use a shorter runway, in flight, headwinds are bad because they slow you down and require that you use more fuel to get to your destination. Conversely, tailwinds are bad on take-off and landing, but are good in flight.