California-based LeGrand, founded by mechanical engineer Aldin 'Red' LeGrand, introduced their Formula Ford MK10 in 1968 making them one of the first U.S.-based constructors to introduce a Formula Ford model. The design was unique and built without any input or inspiration from other marques. Period brochure literature stated that the MK10 was basically a simplified version of their MK6 Formula B car, yet still retaining the advanced lightweight fully adjustable Heim joint suspension. The bodywork of the MK10 was shared with the MK6.
Aldin LeGrand was an engineer in the aerospace industry who started his company in the early 1960s building Renault-based specials. This led to Formula 4 competition with his Cheetah in 1963 and later to Formula B with the Mk6, followed by the Mk10 Formula Ford racers in 1968.
The MK10 models were originally built with magnesium front uprights and wheels but were later changed to steel wheels and front uprights to comply with Formula Ford rules. The bodywork was later changed to FF regulations. As the years progressed, the wheelbase was increased and the front and rear track were enlarged in compliance with Formula Ford rules.
In 1972, the MK13F was introduced as a replacement for the MK13F. The MK13F had inboard rear brakes and new bodywork.
The LeGrand MK10 was successful both in terms of sales and competition, winning many races.By Daniel Vaughan | Nov 2010