Will Celera 500 Sink or Swim?
 

Just read this forbes article, which I found to be the most informative I have seen on the internet about the Celera 500. Unfortunately, I cannot post the URL as I do not have the 10 posts required to post a URL but it is titled,"Otto Aviation Hopes To Torpedo The Business Jet Market With Its Curious New Design. Will It Sink Or Swim?"
Of course, Otto will have to demonstrate that all of its eyebrow-raising claims on speed, fuel efficiency, cost and range have been achieved. And this is where it gets confusing. We asked Otto’s CTO if its claimed performance numbers have, after 31 flights, been validated?
“We don’t have the production engine yet so for that reason we haven’t achieved the altitude that is required to achieve the top speeds,” Bogue replied. The Celera prototype has flown with a single-turbo version of the RED A03 V-12 turbodiesel he reveals. Otto will be getting a twin-turbo version of the engine from RED soon he says which will be integrated before certification.

There's already a thread about it here in this section: https://www.pprune.org/biz-jets-ag-f...ppearance.html