Question: Jacques Vallée describes allegations of the Montauk Project as an outgrowth of stories about a U.S. Navy destroyer escort was claimed to have been rendered what?

full_context: Document 1: Coast Guard Station Montauk: U.S. Coast Guard Station Montauk is located on the easternmost end of Long Island in Montauk, New York. Station Montauk was officially opened on October 1, 1955 and has remained an active Search and Rescue and Law Enforcement unit. Today the station is one of eight small boat units that are a part of Sector Long Island Sound. Station Montauk is made up of active duty, reserve, and auxiliary personnel to maintain watch over the south shore of Long Island and Long Island Sound.
Document 2: Naval Aircraft Factory: The Naval Aircraft Factory (NAF) was established by the United States Navy in 1918 in Philadelphia, Pennsylvania. It was created to help solve aircraft supply issues which faced the Navy Department upon the entry of the U.S. into World War I. The US Army’s requirements for an enormous quantity of airplanes created a decided lack of interest among aircraft manufacturers in the Navy's requirements for a comparatively small quantity of aircraft. The Navy Department concluded that it was necessary to build a Navy-owned aircraft factory in order to assure a part of its aircraft supply; to obtain cost data for the Department’s guidance in its dealings with private manufacturers; and to have under its own control a factory capable of producing experimental designs.
Document 3: Montauk Project: The Montauk Project is an alleged series of secret United States government projects conducted at Camp Hero or Montauk Air Force Station on Montauk, Long Island, for the purpose of developing psychological warfare techniques and exotic research including time travel. Jacques Vallée describes allegations of the Montauk Project as an outgrowth of stories about the Philadelphia Experiment. The history of the Montauk Project story is closely associated with — and often believed to originate in — by Preston Nichols.
Document 4: 267th Chemical Company: The 267th Chemical Company was a military unit of the U.S. Army Chemical Corps responsible for the surety of chemical warfare agents dubbed "RED HAT" deployed to the Islands of Okinawa, Japan and subsequently Johnston Atoll in the Pacific Ocean. A recently discovered Army document reveals that the true mission of the 267th Chemical Company was the operation of the Okinawa deployment site as part Project 112. Project 112 was a 1960s biological warfare field test program that was conducted by the Deseret Test Center. Okinawa is not listed as a test site under Project 112 by the U.S. Department of Defense.
Document 5: FleetEx '83-1: FleetEx 83 was a mission that took place between March 29 and April 17 of 1983 consisted of three carrier battle groups. The US carriers Enterprise, Midway, and Coral Sea and their respective escort ships participated in the exercise. The mission according to Admiral Robert Long, Commander-in-Chief of U.S. Forces in the Pacific, comprised “the largest fleet exercise conducted by the Pacific Fleet since World War II.” The group consisted of approximately forty ships, 23,000 crew members, and 300 aircraft. The exercise lasted approximately two weeks and was conducted in the Northern Pacific, within flight range of the Soviet Union coast. The purpose of the mission was to intentionally provoke the Soviet Union into responding so that the US forces could study their response, tactics, and capabilities as well as demonstrate the effective operations of a three-carrier battle force in joint and combined operations across multiple service branches in both the United States and Canada, in a high-threat environment. The exercises were extremely successful and effective in integrating the combined forces of the United States Navy, Coast Guard, Air Force, and Canadian Naval forces into an effective battle force. Despite poor weather, the fleet excelled throughout the exercise.
Document 6: Philadelphia Experiment: The Philadelphia Experiment is an alleged military experiment supposed to have been carried out by the U.S. Navy at the Philadelphia Naval Shipyard in Philadelphia, Pennsylvania, sometime around October 28, 1943. The U.S. Navy destroyer escort  was claimed to have been rendered invisible (or "cloaked") to enemy devices.
Document 7: Rendlesham Forest incident: In late December 1980, there were a series of reported sightings of unexplained lights near Rendlesham Forest, Suffolk, England, which have become linked with claims of UFO landings. The events occurred just outside RAF Woodbridge, which was used at the time by the U.S. Air Force. USAF personnel, including deputy base commander Lieutenant Colonel Charles I. Halt, claimed to see things they described as a UFO sighting.
Document 8: Stargate Project: The StarGate Project was the code name for a secret U.S. Army unit established in 1978 at Fort Meade, Maryland, by the Defense Intelligence Agency (DIA) and SRI International (a California contractor) to investigate the potential for psychic phenomena in military and domestic intelligence applications. The Project, and its precursors and sister projects, went by various code names — GONDOLA WISH, GRILL FLAME, CENTER LANE, SUN STREAK, SCANATE — until 1991 when they were consolidated and rechristened as "Stargate Project".
Document 9: Joseph McMoneagle: Joseph McMoneagle (born January 10, 1946 in Miami, Florida) is a retired U.S. Army NCO and Chief Warrant Officer. He was involved in "remote viewing" (RV) operations and experiments conducted by U.S. Army Intelligence and the Stanford Research Institute. He was among the first personnel recruited for the classified program now known as the Stargate Project (1978–95). Along with psychic colleague Ingo Swann, McMoneagle is best known for claims surrounding the investigation of RV and the use of paranormal abilities for military intelligence gathering. His interests also include near-death experiences, out-of-body travel and unidentified flying objects.
Document 10: Skunk Works: Skunk Works is an official pseudonym for Lockheed Martin's Advanced Development Programs (ADP), formerly called Lockheed Advanced Development Projects. It is responsible for a number of famous aircraft designs, including the U-2, the Lockheed SR-71 Blackbird, the Lockheed F-117 Nighthawk, Lockheed Martin F-22 Raptor, and the Lockheed Martin F-35 Lightning II, which will be used in the air forces of several countries. Its name was taken from the moonshine factory in the comic strip "Li'l Abner". The designation "skunk works" or "skunkworks" is widely used in business, engineering, and technical fields to describe a group within an organization given a high degree of autonomy and unhampered by bureaucracy, with the task of working on advanced or secret projects.
Document 11: USS Cyclops (AC-4): USS "Cyclops" (AC-4) was one of four "Proteus"-class colliers built for the United States Navy several years before World War I. Named for the Cyclops, a primordial race of giants from Greek mythology, she was the second U.S. Naval vessel to bear the name. The loss of the ship and 306 crew and passengers without a trace within the area known as the Bermuda Triangle some time after 4 March 1918 remains the single largest loss of life in U.S. Naval history not directly involving combat. As it was wartime, there was speculation she was captured or sunk by a German raider or submarine, because she was carrying 10800 LT of manganese ore used to produce munitions, but German authorities at the time, and subsequently, denied any knowledge of the vessel. The Naval History & Heritage Command has stated she "probably sank in an unexpected storm" But the ultimate cause of the ship's fate is unknown.
Document 12: Montauk Air Force Station: Montauk Air Force Station was a US military base at Montauk Point on the eastern tip of Long Island, New York. It was decommissioned in 1981 and is now owned by the New York State Office of Parks, Recreation and Historic Preservation as Camp Hero State Park.
Document 13: Camp Hero State Park: Camp Hero State Park is a 754 acre state park located on Montauk Point, New York. The park occupies a portion of the former Montauk Air Force Station.
Document 14: BRP Gregorio Velasquez (AGR 702): BRP "Gregorio Velasquez (formerly known as R/V "Melville and originally built as the USNS "Melville" (T-AGOR-14)) is a research vessel formerly operated by Scripps Institution of Oceanography for oceanographic research. As the R/V "Melville", it was the oldest active vessel in the academic research fleet, collectively known as the University-National Oceanographic Laboratory System (UNOLS). The US Government confirmed on 17 November 2015 that the "Melville" will be transferred to the Philippine Navy as Excess Defense Articles (EDA)s. The vessel was officially transferred to the Philippines on 28 April 2016 and was commissioned into active service at the same time with the Philippine Navy.
Document 15: Sea Jet: Sea Jet, or Advanced Electric Ship Demonstrator (AESD), is a naval testbed funded by the U.S. Navy's Office of Naval Research. The 133 ft vessel is operated out of the Carderock Division's Acoustic Research Detachment in Bayview, Idaho. "Sea Jet" was operated on Lake Pend Oreille, where she was used for test and demonstration of various technologies. Among the first technologies tested was an underwater discharge water jet from Rolls-Royce Naval Marine, Inc., called AWJ-21, a propulsion concept with the goals of providing increased propulsive efficiency, reduced acoustic signature, and improved maneuverability over previous Destroyer Class combatants.
ground_truth: invisible