NIFE Aero Questions and Answers well Explained Latest 2024/2025 Update 100% Correct.
13 views 0 purchase
Course
NIFE Aero
Institution
NIFE Aero
Vertical line on right side - Redline Airspeed, Velocity Never to Exceed
As these vortices continue aft of wing, they continue as spiraling masses of air (Jet wash, Wake
Turbulence)
What three things happen as air becomes less dense for airplane: - Reduces power
Reduces thrust
Reduces lift
Mo...
NIFE Aero
Vertical line on right side - Redline Airspeed, Velocity Never to Exceed
As these vortices continue aft of wing, they continue as spiraling masses of air (Jet wash, Wake
Turbulence)
What three things happen as air becomes less dense for airplane: - Reduces power
Reduces thrust
Reduces lift
Moment - Force applied at some distance from an axis or fulcrum
Fxd
(Distance: from the point of rotation that is perpendicular to force, "moment arm")
When are the four forces that act on an airplane in equilibrium? - Thrust, drag, lift, weight
Define Vector - A quantity that expresses both magnitude and direction. A vector quantity is
represented by an arrow that displays direction and has a length proportional to magnitude
Atmospheric static pressure - Weight of a column of air over a given area
Air Density - The total mass of air particles per unit of volume
With altitude increase, what happens to air temp - Decreases linearly at 2 C (3.57 F) per 1000ft,
until 36000ft.
What is this rate of temp change called - Average Lapse Rate
Humidity - Amount of water vapor in the air
,Humidity and Density relationship - Inverse
General Gas Law - P = pRT
Steady airflow - Exists if at every point in the airflow static pressure, density, temperature, and
velocity remain constant over time (may vary from one point to another, but at any given point, it is
constant)
Same path is followed
Steamline - the path that air particles follow in steady airflow
Streamtube (2 things) - collection of many adjacent streamlines.
closed system
Continuity Equation - A1V1 = A2V2
Bernoulli's Principle - Total energy of a fluid can be separated into potential energy (static
pressure) and kinetic energy (dynamic pressure)
Total Pressure (Pt) = - Ps + q
Talk about Bernoullis Prin in a closed system - Total pressure is constant, therefore an increase in
static pressure = decrease in dynamic pressure
PT = - PT = Ps + (1/2)pV^2
Indicated Airspeed - Actual instrument indication of the dynamic pressure the airplane is exposed
to during flight
, Calibrated Airspeed - When indicated airspeed is corrected for instrument error
Equivalent Airspeed - True airspeed at sea level on a standard day that produces the same
dynamic pressure as the actual flight condition
Found by correcting calibrated airspeed for compressibility error
True Airspeed - Actual velocity at which an airplane moves through an air mass
Found by correcting equivalent airspeed for the difference between the local air density (p) and the
density of the air at sea level on a standard day (po)
If IAS remains constant while climbing from sea level to some higher altitude... what happens to TAS -
TAS increases
Ground speed - Airplane's actual speed over the ground
Correct TAS for the movement of the air mass (wind)
Mean Camber Line - locus of points halfway between upper and lower surfaces, measured
perpendicular to the mean camber line itself
Chordline - infinitely long, straight line which passes through its leading and trailing edges.
Chord - Precise measurement between the leading and trailing edges measured along the
chordline
Root Chord - Measured at the wing centerline
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICMATERIALS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
