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The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation. In other words, the density altitude is the air density given as a height above mean sea level. The density altitude can also be considered to be the pressure altitude ...
density altitude (DA) A term in drag racing which often refers to atmospheric air pressure decreasing as altitude above sea level increases. All supercharged internal combustion engines produce less power as air pressure drops, as each intake stroke draws in less air per volume than normally.
DA – density altitude; a reference to qualities in the air. Dial-in (bracket racing) – a car's pre-estimated ET for a pass, used for handicapping the start; Diaper – an absorbent containment blanket under the engine to prevent/reduce oil contact with the track, in the event of parts breakage
Bristol Motor Speedway (formerly known as the Bristol International Raceway from 1978 to 1996 and as the Bristol International Speedway from 1961 to 1978) is a 0.533-mile (0.858 km) oval short track in Bristol, Tennessee.
The Bahrain International Circuit (Arabic: حلبة البحرين الدولية, romanized: Ḥalba al-Baḥrayn ad-Dawliyya) is a 5.412 km (3.363 mi) motorsport venue opened in 2004 and used for drag racing, GP2 Series (now FIA Formula 2), and the annual Formula One Bahrain Grand Prix. The 2004 Grand Prix was the first held in the Middle East.
Rockingham Speedway and Entertainment Complex (formerly known as North Carolina Speedway from 1998 to 2007 and North Carolina Motor Speedway from 1965 to 1996) is a 1.017-mile (1.637 km) D-shaped oval track in Rockingham, North Carolina.
There are six divisions at the track. [4] The Super Late Model and Late Model divisions race on the half-mile track. [4] The Super Stocks, Sport 4's (stock four cylinders modified for racing), and Wisconsin Sport Trucks [4] [9] divisions race on the quarter-mile track.
Bandimere Speedway, also known by the NHRA as Thunder Mountain, was a quarter-mile dragstrip located just outside Morrison, Colorado and Lakewood, Colorado.It opened in 1958 and was the host to many racing events, including many NHRA Nationals events.