Swat Cats!! I remember that, and their plane of course was a Tomcat, with 3 engines!! Woohoo!
The other really sounds like a classic Hannah Barbera cartoon (the same two guys made Tom & Jerry, The Flintstones, The Jetsons, Yogi Bear, Top Cat etc. etc.), I think it was simply called Catch That Pigeon and that was with Dick Dastardly and Mutley (the dog, who seemed to be the more intelligent sometimes, and had a funny dry laugh that I often do in real life too). Those characters and several other from the same two creators also were in a big cartoon-show with racing around the planet.
I wonder if that guy on the flightsim forum ever did finish that Sea Duck for MSFS, that could be cool.
Frank