![The YB-40, a prototype B-17 made to act solely as a bomb-less, flying anti-aircraft gunship designed to escort and protect large bomber formations from enemy interceptors… : r/interestingasfuck The YB-40, a prototype B-17 made to act solely as a bomb-less, flying anti-aircraft gunship designed to escort and protect large bomber formations from enemy interceptors… : r/interestingasfuck](https://preview.redd.it/the-yb-40-a-prototype-b-17-made-to-act-solely-as-a-bomb-v0-62kf0czje1b81.jpg?width=640&crop=smart&auto=webp&s=f8cbbc1522d2defb0ad7496d6aa7d6fa1dc7701e)
The YB-40, a prototype B-17 made to act solely as a bomb-less, flying anti-aircraft gunship designed to escort and protect large bomber formations from enemy interceptors… : r/interestingasfuck
![The Boeing YB-40: how the B-17F strategic bomber was turned into a four-engined escort fighter - The Aviation Geek Club The Boeing YB-40: how the B-17F strategic bomber was turned into a four-engined escort fighter - The Aviation Geek Club](https://theaviationgeekclub.com/wp-content/uploads/2021/04/B-17G-Flying-Fortress-42-31076-LG-V-Chief-Slys-Son.jpg)
The Boeing YB-40: how the B-17F strategic bomber was turned into a four-engined escort fighter - The Aviation Geek Club
![Boeing YB-40 Flying Fortress, 42-5736 Tampa Tornado The Boeing YB-40 Flying Fortress was a modification for operat… | Wwii aircraft, Aircraft, Air and space museum Boeing YB-40 Flying Fortress, 42-5736 Tampa Tornado The Boeing YB-40 Flying Fortress was a modification for operat… | Wwii aircraft, Aircraft, Air and space museum](https://i.pinimg.com/736x/01/18/c9/0118c99f11b29ab69853562680a598db.jpg)