PPRuNe Forums - Turboprop - High Speed Cruise Definition

PPRuNe Forums (https://www.pprune.org/)

- Flight/Ground Ops, Crewing and Dispatch (https://www.pprune.org/flight-ground-ops-crewing-dispatch-39/)

- - Turboprop - High Speed Cruise Definition (https://www.pprune.org/flight-ground-ops-crewing-dispatch/636346-turboprop-high-speed-cruise-definition.html)

BrassAPE

25th Oct 2020 19:03

Turboprop - High Speed Cruise Definition

Is there a standard method or definition for turboprop high-speed cruise speeds?

Long Range Cruise speed is that at which the SAR is 99% of the Max Range Cruise SAR,

However, HSC speed does not seem to follow an obvious SAR = x% MRC relationship and is not necessarily the speed achievable at maximum cruise power - the Q400 Fuel efficiency manual shows HSC as different to Max Cruise speed.

Is the highest speed at which a minimum climb requirement (100 or 300fpm)?

All times are GMT. The time now is 15:32.