I4, i4, I 4 or I-4 may refer to:
Arts, entertainment, and media
* ''
I-4: Loafing and Camouflage'', a Greek film
Military
*
1st Life Grenadier Regiment (Sweden)
The 1st Life Grenadier Regiment ( sv, Första livgrenadjärregementet), designation I 4, was a Swedish Army infantry regiment that traced its origins back to the 16th century. It was merged into a new regiment in 1927. The regiment's soldiers we ...
(1816–1927), a Swedish infantry regiment
* , a World War II Type J1 submarine of the Imperial Japanese Navy
*
Life Grenadier Regiment (Sweden)
The Life Grenadier Regiment ( sv, Livgrenadjärregementet), designations I 4 and I 4/Fo 41, was a Swedish Army infantry regiment that traced its origins back to the 16th century. It was disbanded in 1997. The regiment's soldiers were originally r ...
(1928–1997), a Swedish infantry regiment
*
Tupolev I-4
The Tupolev I-4 was a Soviet sesquiplane single-seat fighter. It was conceived in 1927 by Pavel Sukhoi as his first aircraft design for the Tupolev design bureau, and was the first Soviet all-metal fighter.
Design and development
After the first ...
, a 1927 Soviet aircraft
Science and technology
*
I-4 satellite
Three I-4 satellites make up the INMARSAT BGAN, FleetBroadband and SwiftBroadband communications network. They provide Internet and telephony connections anywhere on Earth, except in polar regions.
Data services
Two general types of data ser ...
* i4, an integer in
XML-RPC
XML-RPC is a remote procedure call (RPC) protocol which uses XML to encode its calls and HTTP as a transport mechanism.Simon St. Laurent, Joe Johnston, Edd Dumbill. (June 2001) ''Programming Web Services with XML-RPC.'' O'Reilly. First Edition. ...
Transportation
*
I4 engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
The vast majority of automotive four-cylinder engines use a straight-four layout (with the e ...
, a piston engine
*
Interstate 4
Interstate 4 (I-4) is an Interstate Highway located entirely within the U.S. state of Florida, maintained by the Florida Department of Transportation (FDOT). Spanning along a generally southwest–northeast axis, I-4 is entirely concurrent wi ...
, an interstate highway in Florida
*
BMW i4
The BMW i4 (model code G26) is a battery electric compact executive car produced by BMW since 2021. It adopts a five-door liftback body style and is marketed as a four-door coupé. The initial concept version, named BMW i Vision Dynamics, debu ...
, a German mid-size electric sedan
*
Interstate Airlines
Interstate Airlines was a charter airline based in Maastricht, Netherlands. It operates wet lease services within Europe. Its main base was Maastricht Aachen Airport.
There was also a U.S.-based Interstate Airlines which was a cargo air carrier ...
, by IATA airline designator
*
LB&SCR I4 class
The LBSCR I2 class was a class of 4-4-2 steam tank locomotives designed by D. E. Marsh for suburban passenger service on the London, Brighton and South Coast Railway. The I4 class were of the same design but incorporated a superheated boiler.
...
, a British locomotive
See also
*
iPhone 4
The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. It is the fourth generation of the iPhone lineup, succeeding the iPhone 3GS and preceding the 4S. Following a number of notable leaks, the iPhone 4 was first unvei ...
, a smartphone
{{Letter-Number Combination Disambiguation