B3
title: "B3" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public topic_path: "uncategorized" source: "https://en.wikipedia.org/wiki/B3" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
B3, B03, B.III or B-3 may refer to:
Military
American bombers
- Keystone B-3, a biplane bomber of the United States Army Air Corps
- Next-Generation Bomber (2018 Bomber), next bomber follow-on to the B-2 stealth bomber program
- Long Range Strike Bomber program, successor program to the 2018 Bomber program
- Northrop Grumman B-21, a successor aircraft to the B-1 and B-52 bombers
German and Austro-Hungarian aircraft
- AEG B.III, a German reconnaissance aircraft
- Albatros B.III, a German Idflieg B-class designation aircraft
- Aviatik B.III, a 1916 Austro-Hungarian reconnaissance aircraft
- Euler B.III, a German Idflieg B-class designation aircraft
- Fokker B.III (disambiguation), two aircraft models
- Halberstadt B.III, a German Idflieg B-class designation aircraft
- Kampfgeschwader 54, from its historic Geschwaderkennung code with the Luftwaffe in World War II
- Lohner B.III
- LVG B.III, a 1910s German two-seat trainer biplane
Submarines
- USS B-3 (SS-12), a United States Navy submarine
- HMS B3, a British B class submarine of the Royal Navy
Civilian transportation
Roads
- B3 road (Kenya)
- B3 road (Namibia)
- Bundesstraße 3, a German national highway
Trains
- Alsace-Lorraine B 3, an Alsace-Lorraine P 1 class steam locomotive
- Bavarian B III, an 1852 German steam locomotive model
- NCC Class B3, an 1890 Irish 4-4-0 passenger steam locomotive
- NSB B3 (Class 3), Norwegian railway carriages
- LNER Class B3, a British locomotive class
Other
- B3 (New York City bus) serving Brooklyn
- B3, a spur of the B (SEPTA Metro) in Philadelphia, PA, US
- Bellview Airlines (International Air Transport Association code B3)
Biology and medicine
- B3 (classification), a medical-based Paralympic disability sport classification for blind sport
- B3 domain, a highly conserved plant DNA-binding domain
- Procyanidin B3, a plant phenolic compound
- ATC code B03 Antianemic preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System
- Prodelphinidin B3, a plant phenolic compound
- Vitamin B3 (niacin)
Computing
- A TCSEC security class in the Trusted Computer System Evaluation Criteria
- "B3 Coin" a cryptocurrency
Engines
- A type of four-cylinder Mazda B engine
- Benz B.III, an engine powering the 1914 Friedrichshafen FF.33 German aircraft
Music
- B3 (band), an American boy band most popular in Germany
- B3 (EP), a 2012 EP by alternative rock band Placebo
- Hammond B-3, an electric organ
Other uses
- B3 (stock exchange)
- B_3^I, the Bochvar logic in calculus
- B03, Alekhine's Defence chess code
- B3: Battle by the Bay, a 1996 Street Fighter tournament
- B3 oil field, an oil and gas field in the Baltic sea
- Model B3 chair, a 1925 German Wassili designer chair
- A subclass of B-class stars in stellar classification
- a permission code for Town and country planning in the United Kingdom
- Big Beautiful Bill, a 2025 omnibus bill proposed by POTUS Donald Trump
- An ISO 216 international standard that defines paper size
- B3 the chemical formula for triboracyclopropenyl
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