An afterburner for a turbofan engine comprising: a row of flameholder vanes joined to radially outer and inner shells (44,46); each of said vanes including first and second sidewalls (48,50) extending between leading and trailing edges (52,54); a plurality of main fuel spraybars distributed circumferentially before said vanes; a smaller plurality of pilot fuel spraybars positioned before leading edges in a one-to-one correspondence with corresponding ones of the flameholder vanes referred to as pilot vanes; characterised in that the afterburner further comprises: a plurality of fuel shields disposed between corresponding pilot vanes and said pilot spraybars, and covering said leading edges of said pilot vanes with a thermally insulating gap therebetween; wherein each of said fuel shields comprises: first and second wings (72,74) obliquely joined together at a nose; each of said wings (72,74) having an offset tab at a proximal end thereof fixedly joined to said sidewalls (48,50); and said wings (72,74) and tabs being complementary to said pilot vanes around said leading edges thereof, with said tabs offset from said wings (72,74) to effect said gap between said wings and sidewalls. a row of flameholder vanes joined to radially outer and inner shells (44,46); each of said vanes including first and second sidewalls (48,50) extending between leading and trailing edges (52,54); a plurality of main fuel spraybars distributed circumferentially before said vanes; a smaller plurality of pilot fuel spraybars positioned before leading edges in a one-to-one correspondence with corresponding ones of the flameholder vanes referred to as pilot vanes; characterised in that the afterburner further comprises: a plurality of fuel shields disposed between corresponding pilot vanes and said pilot spraybars, and covering said leading edges of said pilot vanes with a thermally insulating gap therebetween; wherein each of said fuel shields comprises: first and second wings (72,74) obliquely joined together at a nose; each of said wings (72,74) having an offset tab at a proximal end thereof fixedly joined to said sidewalls (48,50); and said wings (72,74) and tabs being complementary to said pilot vanes around said leading edges thereof, with said tabs offset from said wings (72,74) to effect said gap between said wings and sidewalls. a plurality of fuel shields disposed between corresponding pilot vanes and said pilot spraybars, and covering said leading edges of said pilot vanes with a thermally insulating gap therebetween; wherein each of said fuel shields comprises: first and second wings (72,74) obliquely joined together at a nose; each of said wings (72,74) having an offset tab at a proximal end thereof fixedly joined to said sidewalls (48,50); and said wings (72,74) and tabs being complementary to said pilot vanes around said leading edges thereof, with said tabs offset from said wings (72,74) to effect said gap between said wings and sidewalls. first and second wings (72,74) obliquely joined together at a nose; each of said wings (72,74) having an offset tab at a proximal end thereof fixedly joined to said sidewalls (48,50); and said wings (72,74) and tabs being complementary to said pilot vanes around said leading edges thereof, with said tabs offset from said wings (72,74) to effect said gap between said wings and sidewalls.