In the end, it’s about how operationally useful real-world eVTOL will be and what mission they do better or cheaper than helicopters. It will decide whether the category will have a breakthrough or not.
Figure 1. The Joby Aviation S4 production prototype. Source: Joby Aviation.
The Investor's presentations from eVTOL OEMs are full of “up to” for speeds and feeds.
When we use our aircraft and eVTOL performance model, the reality is well short of the claims.