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Definition
Vector: magnitude and direction
scalar: only magnitude |
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Definition
| quantity of molecular material that comprise an object |
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Definition
| force at which is attracted toward the center of the earth by gravity |
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Definition
| mass of air per unit of volume |
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| How are a force and a moment related? |
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Definition
force is push or pull exerted on a body. Produce motion along a line.
A moment is a tendency to produce motion about a point or axis. It is created by applying force to a lever arm to induce rotational motion about an axis |
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Definition
| force acts on a body and moves it. w=F*s |
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Definition
ability to do work
TE=PE+KE |
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Definition
| ability of a body to do work because of its position or state of being |
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Definition
ability of a body to do work because of motion
KE=1/2 mV^2 |
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| Newtons First Law of Motion |
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Definition
| Law of Equilibrium: body at rest....motion in a straight line at a constant velocity |
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| Conditions of equilibrium |
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Definition
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Term
| Newtons Second Law of Motion |
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Definition
| Law of Acceleration: unbalance force produces an acceleration in the direction of the force that is directly proportional to the force and inversely proportional to the mass of the body. |
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| Newtons Third Law of Motion |
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Definition
| Law of Interaction: for every action there is an equal and opposite reaction |
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Term
| Define Static Pressure. Change in Ps with altitude? |
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Definition
| weight of a column of air over a given area. decreases with an increase in altitude. |
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Term
| Change in air density with increase in altitude? |
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Definition
| density decrease with increase in altitude |
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Definition
| measure of the average kinetic energy of air particles |
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Term
| change in air temperature in standard atmosphere from S.L. to 66,000 feet? |
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Definition
| air temp decrease 2*C per 1000 feet until 36000 feet. Isothermal layer with a constant temp of about -56.5*C exists from 36000 to 66000 ft |
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Term
| difference Trimmed and Equilibrium flight |
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Definition
trimmed flight: exists when sum of the moments acting about CG equals zero
Equilibrium exist sum of the forces and moments about the CG equals zero |
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Term
| air density with an increase in humidity |
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Definition
| air density decrease with increase humidity |
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Term
| air viscosity. Increase in temperature? |
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Definition
| measure of air's resistance to flow or shearing. increases with an increase in temperature |
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| Primary Factor: speed of sound in air |
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Definition
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| sea level conditions in standard atmosphere |
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Definition
Static Pressure: 29.92 inHG (1013.25 mbar)
Temp: 59*F (15*C)
Avg Lapse Rate: 3.5* F (2.0*C)
density: .0024slugs/ft3 (1.225 g/l)
LSOS: 661.7 kts (340.4 m/s) |
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Term
General Gas Law.
Relationship between temperature, pressure, and density |
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Definition
pressure=density*constant R*temperature
Given constant pressure, density will decrease with an increase in temperature
P=pRT |
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Term
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Definition
-heavier than air
-fixed wing
-engine driven prop or gas turbin jet
-dynamic reaction of airflow over its wings |
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Term
| fuselage contruction of T-34C |
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Definition
| semi monocoque fuselage consisting of stringers, transverse frame member, and the skin |
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Term
| variety of wing has no external bracing |
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Definition
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Definition
ailerons on the wing
rudder and elevator on the empennage
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| primary source of directional control |
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Definition
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| airplane center of gravity |
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Definition
| point at which all weight is considered to be concentrated |
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Term
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Definition
longitudinal-roll
lateral-pitch
directional-yaw |
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Term
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Definition
| length of a wing from tip to tip |
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Term
| difference between chordline, chord, tip chord, root chord, and average chord |
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Definition
chordline: imaginary straight line drawn through the leading and trailing edges of an airfoil
chord: is the length of the chordline from the leading edge to the trailing edge of the airfoil
Avg chord: geometric average of every chord from the root to tip
Tip Chord: length of chord at wing tip
Root chord: length of chord at wing root |
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| define wing area and formula |
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Definition
surface area of wing, wingtip to wingtim including area within the fuselage and nacelles
S=bc |
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Term
| define taper, taper ratio, and sweep angle |
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Definition
taper is reducting in the chord from wing root to tip. Taper ratio is ratio of tip chord to root chord
/\= Ct/Cr
Sweep angle is angle between a line drawn 25% aft of the leading edge and line parallel to lateral axis |
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Term
| aspect ratio? B-52 bomber aspect ration? High performance fighter? |
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Definition
aspect ratio is ratio of wing span to the average chord
-B-52 has aspect ratio, fighter have low aspect ratio |
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Term
| Angle of incidence. Can the angle of incidence ordinarily be changed? |
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Definition
| angle formed between the chordline of an airfoil and the longitudinal axis of the airplane. It is fixed |
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| Define wing loading and formula of calc? |
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Definition
ratio of airplane's weight to the surface area of its wings
WL=W/S |
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Definition
| angle between the spanwise inclination of the wing and the lateral axis |
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Term
| Continuity Equation. Variables? When may the density variable be cancelled? |
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Definition
| p1A1V1=p2A2V2. A is cross sectional area, and V is velocity. p may be cancelled if altitude remains constant and airflow is subsonic |
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Term
| Continuity equation, if velocity of incompressible fluid is to double, what must happen to the cross sectional area of the flow? |
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Definition
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Term
| Bernoulli's equation. Condition does total pressure remain constant? If Pt is constant, how do q and Ps relate? |
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Definition
| Pt=Ps+q. Total pressure remains constant in a closed system. Ps is inversely related to q, if Pt is constant |
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| Pitot static system (bernoulli) |
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Definition
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Term
| given altitude, true about pressure in the static pressure port of the airspeed indicator. |
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Definition
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| IAS and TAS? Equation relating the two? |
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Definition
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| Will IAS equal TAS? vary with increase in altitude? |
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Definition
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| maintaining constant true airspeed during climb? |
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Definition
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| TAS of airplane at a 6 NM/min with a 100 kt tailwind= TAS? |
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Definition
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| 8 NM/min G.S. =TAS 600kts, head or tailwind? |
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Definition
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| Mach number and critical Mach Number (Mcrit) |
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Definition
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| Mach number with increase in altitude |
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Definition
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Definition
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Definition
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Definition
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Definition
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| Mean camber line. type of airfoil with MCL |
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Definition
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Definition
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| static pressure with increasing AOA on symmetric airfoil |
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Definition
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| aerodynamic force and equation |
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Definition
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| two component forces that make up AF |
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Definition
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| lift equation and 3 factors pilot can control |
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Definition
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| level flight with decreasing airspeed |
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Definition
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| CL curves for symmetric and positive camber airfoils and difference |
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Definition
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Definition
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| orientation of the lift vector to the relative wind |
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Definition
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| constant airspeed and increased AOA to below CLmax. what happens? |
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Definition
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| decrease airspeed and constant AOA. |
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Definition
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| increase airspeed and decrease AOA |
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Definition
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| increase airspeed and increase AOA greater than CLmax |
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Definition
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| constant airspeed and decreased AOA |
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Definition
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Term
| laminar and turbulent flow |
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Definition
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| feature of airflow separation? Boundary layer separation and how the separation point move along the airfoil? |
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Definition
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Definition
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| increase speed affect stalling AOA |
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Definition
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| In a stall, result of AOA? |
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Definition
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| Stall speed and normall stall speed equation |
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Definition
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| relationship of stall speed to gross weight and altitude? |
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Definition
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Term
| vertical component of thrust supports a portion of gross weight during a ___ stall, reducing stall speed by approximately ___ knots in the T-34C. |
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Definition
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Term
| purpose of high lift devices? affects on stalling AOA |
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Definition
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Term
| two boundary layer control devices and how slots work? |
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Definition
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Term
| effects of flaps on lift and drag |
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Definition
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Term
| high lift devices that increase the camber of an airfoil. Which are found on T-34C? Which produces the greatest increase in CLmax |
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Definition
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Term
| Benefits of wing root to stall first? |
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Definition
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Term
| Geometric and aerodynamic twist? |
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Definition
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| General steps in a stall recovery? |
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Definition
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| drag and effecting factors |
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Definition
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| Coefficient of drag with an increase in AOA? When will the coefficient of drag equal zero? |
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Definition
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Definition
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| equation of parasite drag and variables |
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Definition
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Definition
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| parasite drag and velocity |
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Definition
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| results of upwash and downwash around an infinite airfoil |
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Definition
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| airflow about a finite wing and results of upwash and downwash |
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Definition
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Definition
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| equation of induced drag and variables |
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Definition
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Definition
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| induced drage and velocity relationship |
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Definition
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Definition
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| increased airspeed vs induced and parasite drag |
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Definition
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| L/D ratio=calculation/represent/determine |
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Definition
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| Define L/Dmax and location on total drag curve |
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Definition
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Definition
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| how power computed from thrust? |
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Definition
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| how is power computed from thrust? |
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Definition
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| Min Tr occurs_____ L/Dmax and min Pr occurs L/Dmax |
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Definition
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Term
| Define thrust available and power available |
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Definition
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Definition
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| AOA for max Te will be____ for a turbojet and ____ for turboprop |
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Definition
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Term
| airspeed for max Pe will be ____ for a turbojet and ____ for a turboprop. |
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Definition
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Term
| How Tr and Pr curves affected by increased weight and altitude |
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Definition
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| how Ta and Pa affected by throttle/PCL setting? Altitude? Weight? |
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Definition
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| how altitude and weight affect Pe and Te |
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Definition
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