TURBOPROP-POWERED AIRCRAFT

摘要

A turboprop-powered medium altitude long endurance aircraft, comprising: a gas turbine engine (8); heat scavenging apparatus (44), for example a thermal blanket comprising capillary tubing,arranged to scavenge heat from the gas turbine engine (8); and heating apparatus arranged to use the scavenged heat to provide heating to the aircraft. The heat scavenging apparatus (44) may be placed on an engine casing (14) and/or on or in an engine exhaust duct (16).The heating apparatus may comprise a circulation path (40) routed directly to a location in the aircraft where heating is to be performed, for example a leading edge of an engine support pylon (6) or a leading edge of an engine-carrying wing. The heating apparatus may comprise a heat exchanger (53 and/or 52).