Pof High Speed Flight Flashcards
Lss equation
38.95 x square root temp kelvin
Mach equation
Tas/LSS
What does having a higher mass do to MCRIT
Lower mcrit due to the greater aoa
Mcrit relationship with aoa
Inversely proportional
What does a thinner wing do to mcrit
Increase it
What happens to stall speed during the transonic speed range
Increases due to compressibility
What happens when an a/c accelerates through the transonic seed range
Static longitudinal stability increases
What are the two components of wave drag above mcrit
Energy drag
Boundary layer separation
What happens to the crit aoa when accelerating through the transonic speed range
Decreases due to compressibility
What happens in a climb above the tropopause
TAs constant
Ias decrease
What happens above/below the tropopause in a climb
CL increase
What happens in a climb below the tropopause
Ias decrease
TAs constant
What happens in a descent above the tropopause
TAS constant
What happens in a descent above/below the tropopause
Cl decrease
What happens in a descent below the tropopause
TAS increase
What is shock stall made worse by
AOA
What happens to the l/d ratio in the transonic speed
Decreases due to compressibility