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Mannin Moar

United Kingdom Mannin Beg & Mannin Moar
Circuit-douglas-1933.png
Location Douglas Circuit
Douglas, Isle of Man
United Kingdom
Time zone GMT
Coordinates 54°9′14.41″N 4°28′44.36″W / 54.1540028°N 4.4789889°W / 54.1540028; -4.4789889Coordinates: 54°9′14.41″N 4°28′44.36″W / 54.1540028°N 4.4789889°W / 54.1540028; -4.4789889
Major events Grand Prix
Surface Asphalt
Length 7.40 km (4.6 mi)
Turns 16
Lap record 4:10.0 (United Kingdom Brian Lewis, Alfa Romeo 8C 2300 Monza, 1933, Grand Prix)
Douglas Circuit (1934 layout)
Surface Asphalt
Length 5.88 km (3.65 mi)
Turns 8
Lap record 2:50 (United Kingdom Brian Lewis, Alfa Romeo Tipo B, 1934, Grand Prix)
Douglas Circuit (1935 layout)
Surface Asphalt
Length 6.50 km (4.04 mi)
Turns 9
Lap record 3:06 (United Kingdom Brian Lewis, Bugatti Type 59, 1935, Grand Prix)

The Mannin Moar was a non-championship Grand Prix held in Douglas, Isle of Man, Great Britain in 1933, 1934 and 1935. The most successful driver was Brian Lewis, having won all three races.

When the R.A.C. wanted to organise a race on a street circuit, because of the popular Monaco Grand Prix, they found that it was illegal to close public roads for racing in the British mainland. However, the Isle of Man had its own laws, so a racing circuit was designed on the streets of Douglas. Two races were organised, Mannin Beg (English: Small Man) for non-supercharged voiturettes with engines smaller than 1500cc on 12 July 1933 and Mannin Moar (English: Great Man) for cars with engines over 1500cc and supercharged voiturettes on 14 July 1933.

Riding mechanics were mandatory for all cars. This was possibly the last time this rule was used in Grand Prix motor racing. The purpose of this rule was that the mechanics could signal to the flag marshals that their drivers wanted to pass a car in front, so that the marshals could flag that car to get out of the way. On behalf of the drivers, Earl Howe wrote a letter to The Motor complaining that the rules were considered an embarrassment and would turn races from international events into second rate affairs. The R.A.C. however stuck to their ideas. As said, after this race the rule that mandated mechanics was never again applied.


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