What are SOP's? And why do you think Airlines have SOP's?

What are SOP's? And why do you think Airlines have SOP's?

SOP's are Standard Operating Procedures, they provide safety, uniformity and work ethics.

What are the advantages of fuel injection vs a carburetor?

What are the advantages of fuel injection vs a carburetor?

Fuel injection provides:

  • Fuel free from vaporization ice

  • Better economy through metered delivery

  • More responsive and efficient engine

  • Less maintenance

What does the abbreviation MSA mean?

What does the abbreviation MSA mean?

Minimum Safe Altitude.

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

Where does the wing stall first on a typical SEP Aircraft (Cessna, Tecnam, ...)?

Where does the wing stall first on a typical SEP Aircraft (Cessna, Tecnam, ...)?

At the wing root. This is a property of rectangular wings, but it's also common to find close to the wing root devices that make it so that the wing root stalls first.

How much thrust comes from the N1 fan?

How much thrust comes from the N1 fan?

Depends on the engine.

In the case of the 737-800 CFM56, 27,300lbs total thrust at a ratio of 5.5:1

What is adverse yaw?

What is adverse yaw?

When rolling the aircraft the up-going wing will experience more drag than the down-going wing. This will result in a yawing moment that directly opposes the desired direction of turn. (i.e.: rolling left will cause a right yaw.)

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 is the height of the tropopause according to ISA?

What is the height of the tropopause according to ISA?

36,090ft in ISA

How do you prevent an aircraft reaching Mcrit?

How do you prevent an aircraft reaching Mcrit?

Decreasing speed, by reducing engine power or pitching up.

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