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Cruise
Advance Oxford Dictionary
1 [intransitive, transitive] to travel in a ship or boat visiting different places, especially as a holiday/vacation
(+ adverb/preposition) They cruised down the Nile.
cruise something We spent two weeks cruising the Bahamas.
2 [intransitive] (+ adverb/preposition) (of a car, plane, etc.) to travel at a steady speed
a light aircraft cruising at 4000 feet
a cruising speed of 50 miles an hour
3 [intransitive, transitive] (of a car, etc. or its driver) to drive along slowly, especially when you are looking at or for something
+ adverb/preposition She cruised around the block looking for a parking space.
cruise something Taxis cruised the streets, looking for fares.
4 [intransitive] + adverb/preposition to win or achieve something easily
The home team cruised to victory.
5 [intransitive, transitive] cruise (something) (slang) to go around in public places looking for a se**al partner
Sea skiming
sea skimming
See also: Nap-of-the-earth
Sea skimming is a technique many anti-ship missiles use to avoid radar and infrared detection during their approach.
HideMethod
Sea skimming anti-ship missiles try to fly as low as is practically achievable, which is almost always below 50 meters (150 ft), and is often down towards 5 meters (15 ft).
wikipedia
Nap of the earth
(my abbreviation NAPEARTH means travelling of planes missiles etc. near to sea or land area)
Nap-of-the-earth (abbreviated NOE) is a type of very low-altitude flight course used by military aircraft to avoid enemy detection and attack in a high-threat environment.[1]
During NOE flight, geographical features are used as cover, exploiting valleys and folds in the terrain by flying in, rather than over, them. This keeps below enemy radar coverage, avoiding "skylining". Other terms are also used, including "ground-hugging", "terrain masking", or "flying under the radar".
Cruise Missile
cruise missile noun
a large weapon with a warhead that flies close to the ground and is guided by its own computer to an exact place
(Advance Oxford dictinary)
A cruise missile is a guided missile that carries an explosive payload and is propelled, usually by a jet engine, towards a land-based or sea-based target. Cruise missiles are designed to deliver a large warhead over long distances with high accuracy. Modern cruise missiles can travel at supersonic or high subsonic speeds, are self-navigating, and can fly on a non-ballistic, extremely low altitude trajectory.
wiki