The price of doing the same old thing is far higher than the price of change, said former US president Bill Clinton. And change is what we are seeing in the world of business aviation - with new technologies for transporting people and cargo with a hugely reduced environmental impact.

Much work has been done on powering the aircraft of the future, as well as the associated impact on airways, regulations and infrastructures. Now the annual Air Charter Expo is shining the spotlight on the likely effect of battery and hydrogen-powered aircraft on the business air charter industry with an operator-targeted conference at the annual ACE21 gathering at London Biggin Hill airport in September.