I occasionally come across some aircraft manuals or checklists which list V speeds in KCAS. Since, as far as I know, CAS can't be read off the airspeed indicator, but is usually listed in the POH in a table with equivalent IAS, why would a manual or checklist show something a speed in CAS rather than IAS?
Why are some speeds listed in CAS?
- Thread starter Icaro
- Start date
BuckTurgidson
New Member
[ QUOTE ]
I occasionally come across some aircraft manuals or checklists which list V speeds in KCAS. Since, as far as I know, CAS can't be read off the airspeed indicator, but is usually listed in the POH in a table with equivalent IAS, why would a manual or checklist show something a speed in CAS rather than IAS?
[/ QUOTE ]
Older aircraft (pre 1975 I think) showed airspeeds in CAS on the airspeed indicator (usually in MPH). I was reviewing the Instrument oral exam guide (the little red book) and came across this little tidbit.
I occasionally come across some aircraft manuals or checklists which list V speeds in KCAS. Since, as far as I know, CAS can't be read off the airspeed indicator, but is usually listed in the POH in a table with equivalent IAS, why would a manual or checklist show something a speed in CAS rather than IAS?
[/ QUOTE ]
Older aircraft (pre 1975 I think) showed airspeeds in CAS on the airspeed indicator (usually in MPH). I was reviewing the Instrument oral exam guide (the little red book) and came across this little tidbit.