I think I know what your talking about now. Is "Duck Tales" the one with Scrooge McDuck watching over Huey,Louie and Dewie. It also had a scientist guy and a pilot Duck who had his own show which I would guess would be "TaleSpin." Heck they even had a cavemen kid I think in the later seasons.
DuckTales was based on Carl Barks's Scrooge McDuck/Duckburg comic books, and made use of just about all their large cast of characters and many of their storylines. DT also introduced new characters such as the bumbling pilot, Launchpad McQuack, the caveduck Bubba, and the superhero GizmoDuck. Launchpad never quite got his own spinoff, but he was a supporting character in
Darkwing Duck.
Darkwing was basically a Disneyfied version of one of Chuck Jones's Daffy Duck-as-hero cartoons (particularly "Stupor Duck" and "The Scarlet Pumpernickel"); appearance aside, Darkwing/Drake Mallard essentially was Daffy with a bit more competence and a softer, family-friendly side. The humor and surreal physics of the show were very much in a Warner Bros. style, which made it hard to reconcile with the much more naturalistic, Disneyesque humor and physics of the
DuckTales universe. (In DT, if someone fell from a plane, you knew they'd die if they weren't rescued. In DD, Darkwing could fall from a plane, hit the ground, turn into an accordion, and be fine in the next shot.)
TaleSpin had no connection to the Duckburg universe. It was a very strange show conceptually. It took the animal characters from
Disney's The Jungle Book -- Baloo, King Louie, Shere Khan, etc. -- and placed them in a faux-1930s South Pacific series that was basically plagiarized from Donald Bellisario's short-lived TV series
Tales of the Gold Monkey. I'm not someone who makes "ripoff" accusations lightly, but both shows' protagonists were the pilots of amphibious cargo planes named for waterfowl (
Cutter's Goose and
Sea Duck), they both had scatterbrained mechanics as comic-relief sidekicks, they both had love-hate relationships with their brunette female leads, and they both hung out at bars called "Louie's." And of course both titles begin with the same five letters.