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  2. World War II ship camouflage measures of the United States Navy

    en.wikipedia.org/wiki/World_War_II_ship...

    Measure 21: On the advice of United States aviators, Measure 11's Sea Blue was replaced by darker Navy Blue and the scheme designated Measure 21 in mid-1942. [6] Overall Navy Blue (5-N), with decks in dark Deck Blue (20-B).

  3. HX-21 - Wikipedia

    en.wikipedia.org/wiki/HX-21

    Air Test and Evaluation Squadron TWO ONE (HX-21) performs developmental testing and evaluation of all Navy, Marine Corps and Coast Guard rotary wing/tilt-rotor aircraft, Unmanned Aerial Vehicles (UAVs) and associated sensor and weapons systems. A wide range of aircraft testing and support is provided to include flying qualities, aircraft ...

  4. Ship camouflage - Wikipedia

    en.wikipedia.org/wiki/Ship_camouflage

    Both the US Navy and the Royal Navy [34] painted ships dark gray on the hull and light gray on the superstructure and turrets. [35] USN measure 12 was a graded system with sea blue low on the hull below the first continuous deck, with ocean gray above that.

  5. Avenger-class mine countermeasures ship - Wikipedia

    en.wikipedia.org/wiki/Avenger-class_mine...

    In the early 1980s, the U.S. Navy began development of a new mine countermeasures (MCM) force, which included two new classes of ships and minesweeping helicopters.The vital importance of a state-of-the-art mine countermeasures force was strongly underscored in the Persian Gulf during the eight years of the Iran–Iraq War, and in Operations Desert Shield and Desert Storm in 1990 and 1991 when ...

  6. World War II US Navy dazzle camouflage measures 31, 32 and 33 ...

    en.wikipedia.org/wiki/World_War_II_US_Navy...

    Navy Blue 5-N Ocean Gray 5-O Some patterns were designed to be used for either Measure 31, 32 or 33 depending on the colors used; these pattern sheets were marked, e.g., MS-3_/3D; in the following table the effective Measure is listed in parentheses after each ship in the last column.

  7. Marine chronometer - Wikipedia

    en.wikipedia.org/wiki/Marine_chronometer

    In 1985 the British Ministry of Defence invited bids by tender for the disposal of their mechanical Hamilton Model 21 Marine Chronometers. The US Navy kept their Hamilton Model 21 Marine Chronometers in service as backups to the Loran-C hyperbolic radio navigation system until 1988, when the GPS global navigation satellite system was approved ...

  8. World War II US Navy dazzle camouflage measures 31, 32 and 33 ...

    en.wikipedia.org/wiki/World_War_II_US_Navy...

    Dazzle camouflage of warships was adopted by the U.S. Navy during World War II, following research at the Naval Research Laboratory.Dazzle consists in painting obtrusive patterns on vertical surfaces.

  9. List of mine warfare vessels of the United States Navy

    en.wikipedia.org/wiki/List_of_mine_warfare...

    This is a list of mine warfare vessels of the United States Navy. Ship status is indicated as either currently active [A] (including ready reserve), inactive [I], or precommissioning [P]. Ships in the inactive category include only ships in the inactive reserve, ships which have been disposed from US service have no listed status.