This innovative aviation stock just hit a key target months ahead of schedule.Skyrocketing more than 228% in 2023, Archer Aviation (ACHR) gave investors a lot to be happy about last year. In 2024? Not so much. Shares of the upstart air taxi stock have been in a nosedive for the better part of 2024, plummeting about 50% year to date.But that's not to say that there isn't positive news regarding the company's operations. In early September, Archer Aviation, a developer of electric vertical take-off and landin ...