Also worth noting that the MIM-104 original and PAC-2 were developed by Raytheon, and I suspect that the PAC-3 was awarded to Lockheed Martin because the PAC-2'

Also worth noting that the MIM-104 original and PAC-2 were developed by Raytheon, and I suspect that the PAC-3 was awarded to Lockheed Martin because the PAC-2's problems were so severe.