26.02.2010, 16:59
Hi guys,
On the topic of IAS/TAS.
IAS is the displayed value on the ASI.
RAS/CAS is IAS corrected for instrument and pressure error.
TAS is CAS corrected for density and pressure error.
GS is TAS corrected for wind component
There is also EAS which is CAS corrected for pressure error only(compressibility effect when over 300 kts)
i don't think instrument error is modeled in il2 but to find accurate TAS and GS you need altitude, temperature, wind speed and a flight computer like this
http://en.wikipedia.org/wiki/E6B. The speeds actually do come pretty close
I'm sure i've seen some pics of a vintage luftwaffe flight computer somewhere but can't find them now..
On the topic of IAS/TAS.
IAS is the displayed value on the ASI.
RAS/CAS is IAS corrected for instrument and pressure error.
TAS is CAS corrected for density and pressure error.
GS is TAS corrected for wind component
There is also EAS which is CAS corrected for pressure error only(compressibility effect when over 300 kts)
i don't think instrument error is modeled in il2 but to find accurate TAS and GS you need altitude, temperature, wind speed and a flight computer like this
http://en.wikipedia.org/wiki/E6B. The speeds actually do come pretty close
I'm sure i've seen some pics of a vintage luftwaffe flight computer somewhere but can't find them now..