We're now at the point where the words “jet engine” conjure up something with a maw big enough for a Mini Cooper to easily drive through. But not every jet aircraft is a double decker people carrier and not every engine is a behemoth. On Thursday, General electric announced that the HF120 jet engine it’s co-developing for the HondaJet completed its US FAA certification testing – and its fan aperture is only 18 inches (45.7 cm) across.

 

The HF120 may be small but, according to GE, it can still put out 2,095 lb of thrust.