When the f 105 thunderchief entered service in 1958 it was the heaviest single engine combat aircraft today the f 105 remains historys heftiest fighter weighing close to 50 000 pounds 23 000 kg it also packed a heavy punch up to 14 000 lb of ordnance despite its weight the f 105 could still achieve mach 2 speeds the thunderstick ii variant was equipped with and upgraded radar and target acquisition set that allowed it to bomb from 15 000 feet with incredible accuracy this kit fea