uwochris
Flightinfo's sexiest user
- Joined
- Dec 21, 2001
- Posts
- 381
Hey guys,
Is there a difference between these 2 speeds that apply to high speed a/c (Vmo vs. Mmo)? Or, are they the same (i.e. does the red barber pole on the ASI represent Vmo, Mmo, or both?). Also, I saw a diagram somewhere that showed that Vmo increases with altitude, while Mmo decreases (in terms of IAS)- does anyone know why there is a difference (Turbine Pilot's Manual)?
Another thing from the Turbine Pilot's Manual that I found odd was that Vmo (in terms of IAS) decreases with altitude, while Vne does not. If both of these speeds represent limitations from excessive dynamic pressure, why should they differ between altitudes?
Thanks in advance,
Chris.
Is there a difference between these 2 speeds that apply to high speed a/c (Vmo vs. Mmo)? Or, are they the same (i.e. does the red barber pole on the ASI represent Vmo, Mmo, or both?). Also, I saw a diagram somewhere that showed that Vmo increases with altitude, while Mmo decreases (in terms of IAS)- does anyone know why there is a difference (Turbine Pilot's Manual)?
Another thing from the Turbine Pilot's Manual that I found odd was that Vmo (in terms of IAS) decreases with altitude, while Vne does not. If both of these speeds represent limitations from excessive dynamic pressure, why should they differ between altitudes?
Thanks in advance,
Chris.