Archer Aviation (NYSE:ACHR) stock is a hot topic on Monday after the electric vertical takeoff and landing (eVTOL) company announced a new deal with Signature Aviation.This deal has Signature Aviation signing a memorandum of understanding (MOU) with Archer Aviation. This covers the use of its locations as takeoff and landing sites for Archer Aviation’s planned air taxi service.Signature Aviation operates a large number of facilities in the U.S. With this partnership, Archer Aviation could gain access to mor ...