The Blackburn Botha
The 1930s and 40s were not Blackburn’s finest moments, to say the least. Believe it or not, the Botha was their second horribly-crafted plane. This two-engine torpedo bomber had plenty of flaws, such as a horrible crew view and the fact that it was so underpowered that a fourth crew member was absolutely necessary. Because of this, it was too heavy to fire torpedos. To top this off, the plane was so difficult to fly that it suffered from multiple fatal accidents.
The Embraer EMB-120 Brasilia
If you think the Embraer EMB-120 has a very odd design, you are not the only one. One of the biggest problems with this plane was that its turboprop engine broke up mid-flight and killed 14 people. This plane has been called one of the worst passenger planes in history, but even so, it is still used sometimes today as a freight plane.