On A high wing anhedral airplane, like a BAE146, and a high wing straight winged aircraft like a Fokker 50, why they don’t have dihedral wings if it has so many advantages?

On A high wing anhedral airplane, like a BAE146, and a high wing straight winged aircraft like a Fokker 50, why they don’t have dihedral wings if it has so many advantages?

A high wing location like the BAE and the Fokker give a natural stable contribution.

This is because the Center of Gravity is underneath the wing, therefore when disturbed the C.G. provides a positive momentum opposite to the distortion.

Are jet streams there all year round?

Are jet streams there all year round?

Yes.

There are permanent jet streams in the...

What is the movement of the center of pressure during/approaching a stall?

What is the movement of the center of pressure during/approaching a stall?

Center of pressure moves forward when approaching a stall.

Can you explain what a coastal breeze is?

Can you explain what a coastal breeze is?

A coastal breeze is a wind from the sea that develops over land near coasts.

It is formed by increasing temperature differences between the land and water; these create a pressure minimum over the land due to its relative warmth, and forces higher pressure, cooler air from the sea to move inland.

Generally, air temperature gets cooler relative to nearby locations as one moves closer to a large body of water.

Is the tropopause uniform in height? If not, what height is it at the pole and the equator?

Is the tropopause uniform in height? If not, what height is it at the pole and the equator?

No, tropopause at the pole is lower (30.000ft) than at the equator (56.000ft)

What is the critical point?

What is the critical point?

The critical point (CP) is a point on a track where it is as quick to go on as it is to turn back.

Also known as ETP (Equal Time Point) and PET (Point of Equal Time).

What is an aerofoil chord line?

What is an aerofoil chord line?

A straight line conecting the leading edge with the trailing edge of an aerofoil.

You have lost both alternators, how long would the battery last and what would you do?

You have lost both alternators, how long would the battery last and what would you do?

30 minutes, I would land as soon as possible.

What is dihedral?

What is dihedral?

Dihedral is the upward inclinitation of the wing from the root to the tip.

If you only have a compass, which is easier to navigate along: a line of longitude or a line of latitude?

If you only have a compass, which is easier to navigate along: a line of longitude or a line of latitude?

A line of latitude.

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