Home Current News A new single-engine plane was designed to be so efficient it can...NewsCurrent NewsA new single-engine plane was designed to be so efficient it can make flying private cost the same as a commercial airline – see the Celera 500LSeptember 7, 202065FacebookTwitterPinterestWhatsApp Otto Aviation’s Celera 500L aims to make private aviation cheaper with far cheaper operating costs than a private jet.Source: yahoo.com/news