Support bracket for turboprop engine nozzle

The bridge has two legs (5A, 5B), each constituting an end of a metal blade and contacting a thermal plastic liner. An arched central portion (8) connects the legs and constitutes a zone of contact with a sleeve of a support channel (2) of a jet pipe. The portion has an inverted central camber defining two top zones (4) constituting two points contacting the sleeve. An independent claim is also included for a device for positioning and adapting to the differential expansions between the thermal plastic liner and a sleeve of a support channel of a jet pipe of a jet prop engine.