Wotan, LePaul,
It takes 8 US/Brit/Canadian rockets to kill a vehicle hangar at a vehicle field.
It takes 18 US/Brit/Canadian rockets to kill a fighter hangar at an airfield.
We all agree it takes 2,500 lb of bomb ordnance to kill a fighter hangar, therfore each rocket carries approximately 2500/18 = 138.88 pounds of ordnance.
So, the ordnance required to kill a vehicle hangar at a vehicle field is 8*138.88 or 1,111.11 pounds.
So yes, a 500kg bomb will kill a vehicle hangar at a vehicle field (or come very close to it.)
All calculations assume a direct hit on the structure.
curly