Does a jet have a critical engine? Why yes or no?

Does a jet have a critical engine? Why yes or no?

No, there is no P-factor (asymmetric blade effect) as on a propeller-driven aircraft.

What is the mean chord line?

What is the mean chord line?

It's the wing area divided by the wing span.

Why is anhedral used instead on some aircraft?

Why is anhedral used instead on some aircraft?

Anhedral:

compensates for the wing sweep improves roll maneuverability

What does a bypass ratio of 11:1 mean?

What does a bypass ratio of 11:1 mean?

For every 1kg of air passing through the combustion chamber, 11kg of air pass bypass the combustion chamber.

How can you calculate the Operating Mass?

How can you calculate the Operating Mass?

OM = DOM + crew and fuel

What is induced drag?

What is induced drag?

Induced drag and its wing tip vortices are a direct consequence of the creation of lift by the wing.

Since the Coefficient of Lift is large when the Angle of Attack is large, induced drag is inversely proportional to the square of the speed whereas all other drag is directly proportional to the square of the speed.

The effect of this is that induced drag is relatively unimportant at high speed in the cruise and descent where it probably represents less than 10% of total drag. In the climb, it is more important representing at least 20% of total drag. At slow speeds just after take off and in the initial climb, it is of maximum importance and may produce as much as 70% of total drag.

Finally, when looking at the potential strength of wing tip vortices, all this theory on induced drag must be moderated by the effect of aircraft weight. Induced drag will always increase with aircraft weight.

What clearance do MSA values give?

What clearance do MSA values give?

They provide at least 1000ft clearance over obstacles within 25NM of the homing facility.

Explain what coffin corner is and what happens when reaching the coffin corner?

Explain what coffin corner is and what happens when reaching the coffin corner?

Occurs at absolute ceiling where low speed buffet and high speed (Mach) buffet are coincident.

When reaching the coffin corner, both increasing and decreasing the corner speed will result in a loss of control (either the aircraft stalls, or mach buffeting starts).

While climbing with a SEP, in what temperature range can carb icing occur?

While climbing with a SEP, in what temperature range can carb icing occur?

Carb icing can occur with temperatures as high 30°C and humidity as low as 50%, but it is more likely when below 20°C and high humidity, especially during low power settings.

At what speed does Mach tuck occur?

At what speed does Mach tuck occur?

Mcrit

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