SD1 or SD-1 may refer to:
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South Dakota's 1st congressional district
South Dakota's 1st congressional district is an obsolete congressional district that existed from 1913 to 1983.
When South Dakota was admitted into the Union in 1889, it was allocated two congressional seats, both of which were elected state-wid ...
, a United States electoral district
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British NVC community SD1
NVC community SD1 (''Rumex crispus - Glaucium flavum'' shingle community) is the only shingle community in the British National Vegetation Classification system.
It is a fairly widely distributed community. There are two subcommunities.
Communi ...
, the only shingle community in the British National Vegetation Classification system
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MSD SD-1
The MSD Super Disk were a series of 5¼-inch floppy disk drives compatible to some degree with the Commodore 1541 disk drive. produced by Micro Systems Development (Dallas, Texas; later MSD Systems) for use with Commodore 8-bit home computers. ...
, a floppy disk drive station for Commodore computers
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Panasonic HDC-SD1
This is a list of Panasonic camcorders.
Professional standard definition models (MiniDV)
Panasonic AG-DVX100 (2002)
Introduced in 2002, AG-DVX100 was Panasonic's first affordable 3CCD digital progressive scan camcorder. Equipped with a 10x L ...
, a digital camcorder
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Sigma SD1
The Sigma SD1 is a digital SLR camera produced by the Sigma Corporation of Japan. The camera uses a Foveon X3 sensor, which comprises 3 layers of 4800 x 3200 pixels (46 megapixels), giving much higher chromatic resolution than the equivalent Bay ...
, a digital SLR camera
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Rover SD1
The Rover SD1 is both the code name and eventual production name given to a series of executive cars built by the Specialist Division (later the ''Jaguar-Rover-Triumph'' division) of British Leyland (BL), under the Rover marque. It was produced ...
, a British car built between 1976 and 1986
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Spacek SD-1 Minisport
The Spacek SD-1 Minisport is a Czech amateur-built aircraft, designed by Igor Špaček and produced by Spacek sro of Hodonin. The aircraft was also produced for a short time in the United States by SkyCraft Airplanes of Orem, Utah as a lig ...
, a Czech amateur-built aircraft design
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Northrop SD-1 drone
The Radioplane BTT, known as RP-71 by the company, as WS-426/2 by the United States Navy, and as WS-462/2 by the US Air Force, is a family of target drones produced by the Radioplane Company (later a division of Northrop).
History
In the pos ...
, a battlefield reconnaissance drone of the 1960s
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SD1 (gene) The agricultural weed syndrome is the set of common traits which make a plant a successful agricultural weed. Most of these traits are not, themselves, phenotypes but are instead methods of rapid adaptation. So equipped, plants of various origins - ...
, a gene that may be part of the
agricultural weed syndrome of ''Oryza sativa'' and ''O. rufipogon'' weeds
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