Pressure and Density Eqns

Question 1

(1) Pressure Height:

Answer 1

[ (1013 - QNH) x 30 ] + Elevation = PH

Question 2

(2) ISA Standard Temp:

Answer 2

15 - (2 x PH/1000) = ISA TEMP

Question 3

(3) ISA Deviation:

Answer 3

ISA Temp - OAT = Deviation
When OAT = HOTTER than ISA standard, ISA Deviation = +ve
When OAT COLDER than ISA standard, ISA Deviation = -ve

Question 4

(4) Density Height:

Answer 4

(ISA Dev x 120) + PH = Density Height