Hard launch
Encyclopedia
Hard launching is a term used to describe a launch system of a guided missile
Guided Missile
Guided Missile is a London based independent record label set up by Paul Kearney in 1994.Guided Missile has always focused on 'the underground', preferring to put out a steady flow of releases and developing the numerous GM events around London and beyond....

, wherein the missile's rocket is ignited while still inside the launch assembly or tube. This is technically simpler than soft launch
Soft launch
Soft launch can be used in regards to either the method for launching a missile or the release of a product or service.- Missile launch :Soft launching is the method of launching a missile in such a way that the rocket motor ignites outside of the launch tube; the missile is ejected non-explosively...

ing but produces a large backblast area
Backblast area
The backblast area is a cone-shaped area behind a rocket launcher, rocket-assisted takeoff unit or recoilless rifle, where hot gases are expelled when the rocket or rifle is discharged. The backblast area is dangerous to ground personnel, who may be burned by the gases or exposed to overpressure...

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