Cap 1 To 6

Question 1

State how the density is related to Pressure ,Humidity and temperature?(directly proportional or inversely?

Answer 1

DENSITY is DIRECTLY proportional to PRESSURE
DENSITY is INVERSELY proportional to TEMPERATURE
DENSITY is INVERSELY proportialn to HUMIDITY

Question 2

IAS CORRECTIONS AND WHAT GIVES US AFTER?

Answer 2

INSTRUMENT ERROR
POSITION ERROR

GIVES US CAS

Question 3

CAS ERRORS AND WHAT DOES IT GIVE AFTER

Answer 3

COMPRESSIBILITY ERROR

GIVES US EAS

Question 4

EAS ERRORS AND WHAT DOES IT GIVE

Answer 4

DENISTY ERROR

GIVE THE TAS

Question 5

MN FROMULA

Answer 5

M= TAS/LSS

Question 6

LSS FORMULA ?

Answer 6

LSS= 39 X SQUARE ROOT OF (TEMP in kelvin)

Question 7

HOW TO RECAL ECTM?

NORMAL ACRONIMO

Answer 7

EXTRA CHIKEN TIKKA MARSALA

E=EAS
C=CAS
T=TAS
M=MACH N

Question 8

HOW TO USE ECMT and when to use it?

Answer 8

Draw a straight line from the constant value and then for the rest connect all from the bottom… ECMT is used when there is an inversion

Question 9

EC T         WHEN GOING 
     M         THROUGH AN 
                  ISOTHERMAL LAYER
                   LIKE ABOVE                
                  TROPOPAUSE

Answer 9

WHEN GOING THROUGH AN ISOTHERMAL LAYER LIKE ABOVE TROPOPAUSE

Question 10

CAMBER LINE?

Answer 10

MEAN LINE BETWEEN THE TOP AND BOTTOM

Question 11

CHORD LINE?

Answer 11

STRAIGHT LINE TROUGH LEDING EDGE AND TRAILING EDGE

Question 12

MAX THICKNESS?AND WHERE IS IT USUALLY ?

Answer 12

THE PLACE WHERE THE UPPER AND LOWER PART ARE THE LONGEST.

AND IS NEAR 1/3 OF THE CHORD USUALLY

Question 13

CHORD LENGHT?

Answer 13

IS THE LENGHT BETWEEN LEADING AND TRAINLING EDGES

Question 14

AOA

Answer 14

ANGLE BETWEEN RELATIVE AIR FLOW AND CHORD LINE

Question 15

DOES SYMMETRICAL AEROFOIL PRODUCE LIFT AND PITCHING MOMENT WHEN THE AoA zero?

Answer 15

No LIFT

NO PITCHING MOMENT

Question 16

DOES THE SYMMETTRICAL AEROFOIL WITH NEGATIVE AoA produce lift and any pitching moment?

Answer 16

No lift

But downforce is created

Question 17

Does Positive cambered with AoA zero produce lift?

Answer 17

Yes

Question 18

At what AoA roughly a postive aerofoil produces zero lift? And what pitching moment

Answer 18

-4 degrees

Will produce a pitch down moment

Question 19

What does CL represents?

Reynolds CAT

Answer 19

Camber
Thickness
AoA
Reynolds number

Question 20

Cambered vs symmetrical?

CL /AoA grapgh

Answer 20

Sym starts at the origin

Cambered start at mines AoA and is above the sym line but with a less critical AoA

Question 21

Thick vs Thin grapgh?

Answer 21

Thick line goes more to the top within the same slope angle as the thin line but ,and also the thick line gives larger critical AoA

So thick better than thin

Question 22

High aspect ratio with low?graph

Answer 22

High asp goes more up steeper with small critical AoA

Low aspect goes up much shallower but gives a larger critical AoA

Question 23

For what IAS is equal for? Formula and pressure type

Answer 23

IAS= 1/2X(rho)X Vsquares(TAS)

Or dynamic pressure

Question 24

In the LIFT formula in which unit of measure TAS is ?

Answer 24

m/s

Question 25

Factor of change formula?

Answer 25

New value/ old value

Question 26

how can the values of CL,V,Lift be also represented in case we need to find a missing value using lift formula?

Answer 26

Cl >>>>>CL max V >>>>>> Vs L >>>>> weight,mass,load factor