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Aircraft Specification Speed...  
User currently offlineSingapore 777 From Singapore, joined May 1999, 1006 posts, RR: 3
Posted (4 years 10 months 2 weeks 4 days 14 hours ago) and read 2082 times:

Hey guys

I was wondering all the V (speed) listed on specification of various aircraft, are they shown in TAS (True Airspeed) or EAS (Estimated Airspeed)?

3 replies: All unread, jump to last
 
User currently offlineJetlagged From United Kingdom, joined Jan 2005, 2462 posts, RR: 17
Reply 1, posted (4 years 10 months 2 weeks 4 days 13 hours ago) and read 2072 times:

V speeds are in IAS (indicated airspeed). They wouldn't be much use to the pilot otherwise.  Wink

BTW, EAS is Equivalent Airspeed, not Estimated.


The glass isn't half empty, or half full, it's twice as big as it needs to be.
User currently offlineSingapore 777 From Singapore, joined May 1999, 1006 posts, RR: 3
Reply 2, posted (4 years 10 months 2 weeks 4 days 13 hours ago) and read 2060 times:

Opps. I am actually referring to specifications of aircraft found in places like brochures and Jane's All The World's Aircraft encyclopedia and information database like Airliners.net Aircraft Data page. Inside these places, there are many speeds listed like Max Cruising Speed, Economical Cruising Speed etc. So I was just wondering are these speed in EAS or TAS.

User currently offlinePihero From France, joined Jan 2005, 3588 posts, RR: 72
Reply 3, posted (4 years 10 months 2 weeks 4 days 12 hours ago) and read 2058 times:		 Support Airliners.net - become a First Class Member!

They are true airspeeds, TAS.
But they are meaningless as the conditions (temperature, ISA...altitude...) are not corelated.
Just an idea for aviation fans.
We are talking about more meaningful data as Mach numbers for high altitude velocities.


Contrail designer
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