Aviation lore is filled with decisions made at the development stage that greatly affected specific aircraft and perhaps even the length of the war itself.
Japanese aircraft with no self seal tanks and armor?
Early versions of the P-38 and P-51 were inferior due to easily correctable factors.
Deploying p-39 as a fighter?
The Me-262 was designed to be a bomber, not just a fighter.
The HE-177 was designed to be a dive bomber.
Weak .303 defensive armaments on Brit bombers?
What else is there?
Which decisions were influenced by ego, wealthy industrialists, myopic incompetence or honest mistakes?
Japanese aircraft with no self seal tanks and armor?
Early versions of the P-38 and P-51 were inferior due to easily correctable factors.
Deploying p-39 as a fighter?
The Me-262 was designed to be a bomber, not just a fighter.
The HE-177 was designed to be a dive bomber.
Weak .303 defensive armaments on Brit bombers?
What else is there?
Which decisions were influenced by ego, wealthy industrialists, myopic incompetence or honest mistakes?