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October 17th, 2004, 12:32
| #1 |
| Junior Member Join Date: Jun 2003 Location: KPMP - Pompano Beach, FL
Posts: 87
|  Why are some speeds listed in CAS? 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? |
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October 17th, 2004, 14:07
| #2 |
| Old Skool  Join Date: Jun 2003 Location: Memphis, TN
Posts: 13,687
 | Re: Why are some speeds listed in CAS? Only thing I can think of is that it saves you a step in coverting to TAS. |
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October 17th, 2004, 22:42
| #3 |
| Senior Member  Join Date: Dec 2002
Posts: 916
| Re: Why are some speeds listed in CAS? Probably because they have the nerd engineers write the POH. |
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October 19th, 2004, 12:19
| #4 |
| Junior Member  Join Date: Jul 2003
Posts: 69
| Re: Why are some speeds listed in CAS? [ 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. |
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