Assertion: fanjet | /r/HasProperty | the optimum
Facets:
value: during the design
type: TEMPORAL
Source sentences:
text: During the design the turbojet was found to be the optimum for cruising at twice the speed of sound despite the advantage of turbofans for lower speeds.
text: During the design the turbojet was found to be the optimum for cruising at twice the speed of sound despite the advantage of turbofans for lower speeds.