 The J40-8 was only a little over in diameter but long, with accessories and including the afterburner.It weighed almost , the -6 being almost shorter and about lighter, because it did not have an afterburner.In 1949, a higher-power J40-WE-12 non-afterburning version developing thrust, with better fuel consumption, was proposed for the A3D, and an afterburning version (J40-WE-10) developing thrust was proposed for the fighter projects.