Heavyweight Fighters....a list by HushKit...

MIG-31
Year: 1975
Max take-off weight: 46,200 kg (101,900 lb)
Length: 22.69 m (74 ft 5 in)

HushKit put together a list of the 14 heaviest fighters.  I found it rather interesting.  Some of these planes are BEASTS!  Another surprise?  Few of them actually made it into service.  Check it out here.