Beech Starship, the visionary aircraft that made history as one of aviation's biggest failures

https://www.airdatanews.com/beech-starship-the-visionary-aircraft-that-made-history-as-one-of-aviations-biggest-failures/ 

https://www.pilotmall.com/blogs/news/the-history-of-the-beechcraft-starship-and-its-sad-ending