True, but a manned plane wouldn't be doing 80 knots
We got rid of our O-1 Bird dogs during Vietnam. Today, the Air Force uses OA-10s for the FAC mission and recon pods on F-16s for faster missions. Not only can an OA-10 absorb a lot of punishment, it can shoot back with deadly effectiveness.
The Predator was designed for moderate altitudes, up to 25,000 feet, and long loiter time. It's proving very vulnerable to ground fire, so more capable UAVs like the Global Hawk might be required to do the job.
