The Thunderbolt is a pretty good airplane, especially for what the KFS uses it for. I think there is a strong argument for spotter aircraft like the
piper cub and a transport like the
DC-3 too. In that vein, rotary wing aircraft too. The KFS has a lot of territory and the pilots of the Thunderbolts are politically connected. I don't see why there isn't a helo standing by in case one of the T-birds gets shot down.
Then the argument for more luxurious or capable aircraft for moving family members of the Rich Five or executives of the 2000 around KFS territory.