Glueball:
I'm not disagreeing with the flight manual, I'm just putting this out there, I think that most Mtp/Vtp also give a rather significant margin above the low speed buffet or structural strength margins I feel that the choice of rough airspeed in conjunction with the turbulence protection is very good,
but there are compromises so that 1. a reasonably economic speed can be flown and 2. that structural weight can be kept down...however, there exist conditions that are so extreme that the FAR 25.343 protectios are overcome and only the physical reality of load factor imparted and operating strength limitations are relevant...no OEM can advise a lower speed than the Mtp/Vtp---- imagine what the lawyers would do with that?...but FAR25.343 has several 'loopholes' and I felt that in case such an extreme situation may be encountered folks would be armed with those facts...I guess it would be upheld under 91.3 ...sorry for the controversy...but I HAD to write this because in the original link I thought that the question itself was misleading and poorly worded and that section is particularly difficult to interpret
