What began as a crowded field with hundreds of competing aircraft designs has been winnowed down significantly as the technical and regulatory hurdles became apparent. Archer Aviation (NYSE: ACHR), an American eVTOL leader, has excelled at fundraising since its inception, putting it in an enviable position as the industry as a whole steadily marches toward commercialization. Here's why Archer Aviation's latest funding round eliminates a key risk for investors and sets the stage for potential share price appreciation.