Actually it's size makes it a perfect delivery system. The standard 777 has a loaded range of a couple of miles under 9000. Total load capable is about 400,000 pounds. The extended range version adds a couple of fuel tanks increasing the range another 2000 miles, with the expected decrease in load available due to the weight of the extra tanks and fuel. Remove all the seats, strip out the unneeded interior panels and you could install another aux tank giving you a range capable of striking anywhere in the northern hemisphere.
With max fuel plus the extra tanks, you would still have a load capacity of somewhere in the neighborhood of 100 tons. The 777 is a wide body aircraft, so you could conceivably stuff one heck of a lot of high explosives inside the fuselage.
About the only down side would be runway length needed to get a super heavy beast off the ground, but it can be done, especially if some rogue government is behind it.
With max fuel plus the extra tanks, you would still have a load capacity of somewhere in the neighborhood of 100 tons. The 777 is a wide body aircraft, so you could conceivably stuff one heck of a lot of high explosives inside the fuselage.
About the only down side would be runway length needed to get a super heavy beast off the ground, but it can be done, especially if some rogue government is behind it.