Much of the vacant space on wide-body aircraft goes unused – but not all of it.

By 2021, Icelandair will have taken delivery of 16 737 MAXs, the first of which has just arrived.

The airline takes delivery of its 100th direct-buy Boeing 737-800, an aircraft type that is already being replaced.

The future aircraft type will be the biggest member of the manufacturer’s single-aisle family.

Boeing hopes positive tests will boost sales that have been lagging specifically for the 737 MAX 7.

Certificate awarded to plane due to enter service with Singapore Airlines in first half of 2018.

But a deal with its biggest customer could still happen