The engine cover being that short will minimise the skin friction losses in the airflow towards the RW.
However, this got me thinking: Why, then, does the RB12 engine cover use the maximum legal engine cover size? They have no shark fin.
RB, being the aero gods they are, must have thought of this loss. But it could also be a necessity for the Renault engine underneath.
Sent from my iPhone using Tapatalk