Since 1983, after the abolition of ground effects, rear wings returned to become a major contributor to downforce.
To operate efficiently, the rear wings must: 1. receive airflow that contains no turbulence 2. avoid any leakage from high pressure to low pressure areas.
Since the beginning of he wing era in the late sixties constructors have been striving to achieve just that.
High mounted wings were introduced in 1968 and got promptly banned.
Wings at large overhangs were the norm in the early 1970s until these large overhangs got abolished.
From 1983 onwards several new trends emerged all seeking to increase the downforce generated by the rear wing.
Winglets appeared on each side of the rear wing, until they got banned from 1985 onwards.
Starting with the Gordon Murray designed Brabham BT 55 of 1986, Formula 1 cars became lower. This was to reduce any turbulence to the rear wing generated by the fuselage or main body of the car.
In 1995 Mclaren tried a double wing design. The main wing was augmented with smaller wing mounted right behind the driver. The car was a flop. Lotus tried a similar setup in 1974 with its Type 76. That double-wing design was also never seen again.
Please use the feedback link below for comments and suggestions.