Amazing article! I have been searching for this type of document for ages. The scrap books, etc. that we have really don't mention a lot of what is written here.
My Grandfather was President/Majority Owner of API. He was flying his single engine plane to DC to sign a contract with the Government to start production. Sadly, ice formed on his plane's wings and he didn't survive the emergency landing. After his death, the remaining copters (I was told five iterations) were destroyed and the Minority Owners sold or merged as mentioned in the article.
A few years before my Father's death,