31. Now the Mach number can be derived directly from the dimensionless form of the momentum equation. 32. In this example the turbine is a transonic unit, where the throat Mach number reaches choked. 33. Alternatively, at Mach numbers increasing towards the speed of sound and beyond, wave drag dominates design concerns. 34. :: : : : Yes, the Mach number is the speed relative to the speed of sound. 35. The variation of net thrust with flight Mach number can be clearly seen on the Husk Plot. 36. A Mach number of 1.0 indicates an airspeed equal to the speed of sound in that air. 37. At burn-out the Mach number was 1.2. 38. Analyzing ducts flowing at higher velocities with mach numbers in excess of 0.3 usually require Compressible flow relations. 39. By actively increasing sweep as Mach number increases, high efficiency is possible for a wide range of speeds. 40. For a ramjet operating at a subsonic flight Mach number , exhaust flow is accelerated through a converging nozzle.
