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TAS to CAS

  • pannier
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pannier created the topic: TAS to CAS

Dear All,

Just wondering if there was a way, using the CR3, of finding CAS from TAS. Have worked one problem in a reverse sense (ie from possible answer CAS given in quiz to TAS given. Haven't seen this type of problem in the CPL Nav book by BOb..perhaps missed it. Thank you!
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bobtait replied the topic: Re: TAS to CAS

Say it's zero degrees at 10,000 ft. Set zero against 10,000 in the airspeed correction window and read the CAS [inside scale] against the TAS on the outside scale. e.g. TAS of 180 kt is equivalent to a CAS of 154 kt. See figure below.



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  • pannier
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pannier replied the topic: Re: TAS to CAS

many thanks!
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