The Douglas TBD Devastator
The problem with this plane wasn’t something small; this plane was actually quite deadly. It could only successfully release a torpedo if the plane was flying totally straight and at exactly 115 miles per hour, which meant that it was basically an open target to its enemies. They launched 41 torpedos and only successfully shot out six.
The LWS-6 Żubr
Just because a plane is ugly, it doesn’t mean it won’t work well. Unless you’re talking about this plane, then that’s definitely what it means. This plane that was crafted right before World War II ended up just being used for training purposes. Four LWS-6 Żubr planes were captured by the Soviet military during the invasion of Poland.