Hi,

When it comes to a glide, weight is not affecting glide angle and glide path, but the

*heavier aircraft glides that path ***faster** according to the study guide. I would like to confirm my understanding:

Both heavier and lighter aircraft need to maintain AoA of 4 degrees to maximise the L/D ratio. Also, as long as the weight is higher, lift needs to be higher for the balance. Therefore, IAS (dynamic pressure) needs to be higher for the heavier aircraft to ensure sufficient lift.

That's why the heavier aircraft will have the same glide path but faster (like a escalator going down set to be running at a higher speed),

provided that their L/D ratio is the same.

However, I am confused about why the heavier aircraft can glide further in

*headwind*. I have brainstormed a bit:

assuming both aircrafts have the same L/D ratio of 10:1.

Without wind, both of them can glide 10 units (horizontal distance) per unit of height loss.

With headwind, thinking of moving "air box", I thought that both of them will have steeper glide path and greater glide angle.

I would be thankful if you could help provide me with some insights. Really thanks very much for your support!

Anson