Type 1

• Diabetes mellitus type 1 (also known as "Type 1 Diabetes"), insulin-dependent diabetes
• Type I female genital mutilation
• Type 1 personality
• Type I hypersensitivity (or immediate hypersensitivity), an allergic reaction

• Type 1 diesel locomotives

• US F1 Type 1, 2010 F1 Car
• Bugatti Type 1, an automobile
• Peugeot Type 1, 1890s vis-a-vis
• Volkswagen Type 1, an automobile commonly known as the Volkswagen Beetle

• German Type I submarine
• Type 001 aircraft carrier, PLAN carrier class variant of the Soviet Kuznetsov class
• Nakajima Ki-43, officially designated Army Type 1 Fighter

• Type 1 Chi-He, a tank
• Type 1 Ho-Ni I, a tank
• Type 1 Ho-Ha, an armoured personnel carrier
• Type 1 Ho-Ki, an armoured personnel carrier

• Type 1 37 mm Anti-Tank Gun, a Japanese weapon
• Type 1 47 mm Anti-Tank Gun, a Japanese weapon
• Type 01 LMAT, a Japanese fire-and-forget anti-tank missile
• Type 1 heavy machine gun, a Japanese weapon
• Type 1 machine gun, a Japanese weapon
• Type I Rifle, Arisaka; a Japanese combat rifle

• Type I and type II errors used in statistics
• Type 1 encryption, a cryptographical certification
• Type 1 fonts
• Type-1 Gumbel distribution, a distribution function
• Type I lattice
• Type 1 sequence
• Type I plug/socket, known formally as AS 3112, an Australian standard for mains power plugs
• Type 1 electrical connector, used by electric vehicles
• Type I superconductor
• Type I string theory
• Type I transmembrane protein
• Type I, part of the Kardashev scale of measuring a civilization's technology level
• IEC Type I, one of the four "type" classifications of audio cassette formulation
• MOT Type 1 Stone, a UK specification for aggregate used as a sub-base in the construction of driveways and roads.
• Type-1 language in the Chomsky hierarchy of formal languages, a.k.a. context-sensitive language

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• L type (disambiguation) or "type-l"
• Type (disambiguation)
• 1 (disambiguation)
• Class 1 (disambiguation)
• Model 1 (disambiguation)
• System 1 (disambiguation)

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