The Douglas TBD Devastator
Some of the less successful planes in engineering history had passible mistakes. Not the Douglas TBD Devastator, however, whose technical conditions for firing torpedoes were so ridiculous (completely straight flight at a speed of 115 mph) that it became a sitting duck.
The Douglas TBD Devastator
The LWS-6 Zubr
Not every plane which has a terrible appearance actually flies badly, just how not every sleek looking exterior is an aeronautical wonder. In the case of the LWS-6 Zubr, however, its hideous barn house-like design matches its awful performance. Making an appearance just prior to the commencement of World War II, the LWS-6 Zubr was pragmatically reserved for training drills. A handful of the beasts were repossessed by Russian soldiers when the Eastern bloc took Poland.
The LWS 6 Zubr
