What is the difference between angle of attack and angle of incidence?

What is the difference between angle of attack and angle of incidence?

Angle of attack is the angle between the chord of the aerofoil and the relative airflow.

Angle of incidence is the angle between the chord and the aircrafts longitudinal datum.

How does an altimeter work and which errors can an altimeter experience?

How does an altimeter work and which errors can an altimeter experience?

When an aircraft climbs, the static pressure in the instrument case decreases, which allows the enclosed capsule to expand.

This in turn moves the needle on the instrument to indicate a corresponding altitude.

During descent, the opposite function applies.

Altimeter errors can originate and vary from:

Instrument Pressure Time-lag Barometric Density Temperature Blocked static port

If you are outside the range of any VOR’s/NDB's, how does the aircraft know where it is?

If you are outside the range of any VOR’s/NDB's, how does the aircraft know where it is?

Via INS/IRS/GPS

At what speed does Mach tuck occur?

At what speed does Mach tuck occur?

Mcrit

What effect does a wet runway have on V1?

What effect does a wet runway have on V1?

V1 is lower when the runway is wet than when the runway is dry, because of the longer ASDR on a wet runway.

What are fusible plugs, where are they used, how do they work, why do we have them?

What are fusible plugs, where are they used, how do they work, why do we have them?

Fusible plugs offer protection from tire blowouts caused by thermal expansion that is generated in the tire under extra hard braking conditions.

How would you load an aircraft for max range?

How would you load an aircraft for max range?

The position of the CG directly influences the fuel consumption of an aircraft. An aft position of the CG makes the aircraft less stable, requiring less lift to be generated in both the horizontal stabilizer and wings, reducing the overall drag of the aircraft, and increasing the max range.

You want to load the the aircraft so that the CG is at, or as close as possible, to the aft limit (Without exceeding it).

If you where picking up 10.000 litres of fuel in Newfoundland (cold weather), and 10.000 litres of fuel in Lima, Peru (hot weather), where would you have picked up the most fuel?

If you where picking up 10.000 litres of fuel in Newfoundland (cold weather), and 10.000 litres of fuel in Lima, Peru (hot weather), where would you have picked up the most fuel?

In Newfoundland. With cold weather density increases, therefore you would pick up a higher mass in Newfoundland.

Why does a swept wing increase Mcrit?

Why does a swept wing increase Mcrit?

A swept wing makes the velocity vector normal to the leading edge a shorter distance than the chordwise resultant.

Which way do jet streams travel?

Which way do jet streams travel?

From West to East

East to West (In Africa during the summer)

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