25 Planes Impacted the WTC // 1000's of plane parts were recovered, including this jet engine.... (www.youtube.com) posted 1 year ago by Oh_Well_ian 1 year ago by Oh_Well_ian +27 / -2 57 comments share 57 comments share save hide report block hide replies
It's very hard to add weight to an aircraft, it has to be within the center of gravity to fly. To much weight forward or aft and the flight controls can't compensate for it.
Edit to add link
https://www.flight-study.com/2021/04/balance-stability-and-center-of-gravity.html
High explosives are not heavy and titanium is very light, lighter and stronger than alloy aluminum.
Being drones, they were passenger free and flying very light. Most likely did not have a full load of fuel, either, making them more agile and faster.
Not needed, 7075 t-6 will do the job just fine. It not quite as hard as steel but damn close to it.