Simple answer - no:
I hate to admit it, but as cool as these would be, the useful tech against zombies would look more like WW2. Machine gun tanks, simple armored personnel carriers, hueys with machine guns in the doors, and fixed-wing prop planes with machine guns and bombs. Simplicity and ease of maintenance and manufacture, plus the ability to operate ...
As always, it is a matter of resources.
Building aircraft, especially advanced aircraft, requires a massive industrial ecosystem. Even small hobby aircraft are often built out of advanced composite materials, foam cores and epoxy, sometimes requiring autoclaves to "cure" the aircraft parts.
VTOL aircraft have been actively researched since the dawn ...
There are design trade-offs to VTOL, and you would only consider it if it is essential.
The basic trade-offs are:
Higher fuel consumption
Higher complexity and therefore:
higher maintenance upkeep
higher manufacturing cost
Less take-off weight
Speed penalty due to more systems devoted to VTOL systems
Higher training requirements
In return you get:
They would not be practical as ongoing investments. If you already had a stock of VTOLs (and fuel for them - aircraft as a rule require huge supplies of fuel) there are some areas where they would be useful, but not as efficient or practical as other solutions.
VTOLs are generally designed as carrier-based aircraft, especially in air forces that don't have ...