Citation X pilots....learn us your scoop

[banned username 2]

Part 25 requires that any new civil aircraft be test flown to "a speed at which characteristics detrimental to safe flight begin to occur", then the Mmo is designated .08 Mach below that speed, or .08 Mach below Mach 1.0, whichever is less.

14 CFR 25.335 (b)(2) The minimum speed margin must be enough to provide for atmospheric variations (such as horizontal gusts, and penetration of jet streams and cold fronts) and for instrument errors and airframe production variations. These factors may be considered on a probability basis. The margin at altitude where MC is limited by compressibility effects must not less than 0.07M unless a lower margin is determined using a rational analysis that includes the effects of any automatic systems. In any case, the margin may not be reduced to less than 0.05M.

M0.92 + M0.07 = M0.99 uncorrected, if they utilize an "automatic system" (guessing Mach Trim) the margin may be reduced to M0.05.
M0.92 + M0.05 = M0.97

 

[FracCapt]

14 CFR 25.335 (b)(2) The minimum speed margin must be enough to provide for atmospheric variations (such as horizontal gusts, and penetration of jet streams and cold fronts) and for instrument errors and airframe production variations. These factors may be considered on a probability basis. The margin at altitude where MC is limited by compressibility effects must not less than 0.07M unless a lower margin is determined using a rational analysis that includes the effects of any automatic systems. In any case, the margin may not be reduced to less than 0.05M.

M0.92 + M0.07 = M0.99 uncorrected, if they utilize an "automatic system" (guessing Mach Trim) the margin may be reduced to M0.05.
M0.92 + M0.05 = M0.97

DOH! There I go again...trying to remember things...when I should really look it up to be positive before I spout off.

 

[banned username 2]

DOH! There I go again...trying to remember things...when I should really look it up to be positive before I spout off.

LOL!!! No Prob... I had to look it up myself!