Virgin Group boss Richard Branson said on Friday he would aim to avoid buying fuel-thirsty four-engined airplanes in future for both economic and environmental reasons. Virgin Atlantic’s fleet of 38 planes all have four engines, and it has six four-engined Airbus A380 superjumbos on order. But in April the airline announced it was buying 15 of Boeing’s new fuel-efficient carbon-composite 787 …
