Question: During which war was the boat built which is on display at a museum in Oregon and was constructed at a city in the "Silicon Beach"?
Context: The Douglas DF was a commercial flying boat built by Douglas Aircraft Company and which first flew on 24 September 1936.  It could accommodate 32 passengers, or 16 in sleeper cabins, and was the last flying boat built by the company.  Despite acceptable handling and performance within design specifications, no commercial orders were forthcoming and faced with no domestic market for aircraft already built, the company obtained export permits for them.  The first two production aircraft were sold to Japan, ostensibly for commercial airline use, however one of them was dismantled, reverse-engineered and formed the basis for the development of the Kawanishi H8K.  The second one was lost on a survey flight in 1938.  The second production pair were sold (as DF-195's) to the Soviet Union and after winterizing, were disassembled and transported to Russia via ship, where they were operated as transports by Aeroflot. Silicon Beach Fest is the name for a conference featuring both startup and Hollywood entertainment companies, based in Los Angeles, California, United States.  Silicon Beach Fest was the "first time that local incubators, accelerators, digital media shops, and investors city-wide have gathered together to examine the burgeoning tech scene in L.A." Playa Vista is a neighborhood located in the Westside of the City of Los Angeles, California, United States, north of LAX.  Prior to the development of Playa Vista, the area was the headquarters of Hughes Aircraft Company from 1941 to 1985, and was the site of the construction of the Hughes H-4 Hercules "Spruce Goose" aircraft.  The area began development in 2002 as a planned community with residential, commercial, and retail components.  The community has become a choice address for businesses in technology, media and entertainment and, along with Santa Monica and Venice, has become known as "Silicon Beach". The Hughes H-4 Hercules (also known as the Spruce Goose; registration NX37602) is a prototype strategic airlift flying boat designed and built by the Hughes Aircraft Company.  Intended as a transatlantic flight transport for use during World War II, it was not completed in time to be used in the war.  The aircraft made only one brief flight on November 2, 1947, and the project never advanced beyond the single example produced.  Built from wood because of wartime restrictions on the use of aluminum and concerns about weight, it was nicknamed by critics the "Spruce Goose", although it was made almost entirely of birch.  The Hercules is the largest flying boat ever built, and it has the largest wingspan of any aircraft that has ever flown.  It remains in good condition and is on display at the Evergreen Aviation & Space Museum in McMinnville, Oregon, United States. PT-796 is a 78-foot PT boat built by Higgins Industries of New Orleans in 1945.  It was designated a National Historic Landmark in 1986 as one of a very few surviving PT boats, which were built in large numbers during World War II.  She is part of the collection of the PT Boat Museum, which itself is part of the Battleship Cove museum in Fall River, Massachusetts. Silicon Peach is a term used to refer to Atlanta, Ga. and the concentration of high tech development in the area.  The term is a continuation of the reference following Silicon Valley (California), Silicon Alley (New York), then Silicon Beach (Los Angeles).  Atlanta has long been a high tech center.  Some of the traditional engines of technology development in Atlanta have been the ATDC at the Georgia Institute of Technology and the Technology Association of Georgia (TAG). Silicon Beach is the Westside region of the Los Angeles metropolitan area that is home to over 500 tech startup companies, with emphasis on the coastal strip north of LAX to Santa Monica Mountains, but the term may be applied loosely or colloquially to refer to most anywhere in the LA Basin.  Major technology companies have opened offices in the region including Google, Yahoo!, YouTube, BuzzFeed, Facebook, Salesforce, AOL, Electronic Arts, EdgeCast Networks, and MySpace.  The region is considered the second- or third-largest tech hub in the world, according to various reports.  Nevertheless, the headquarters of these established corporate tech titans tends to be elsewhere, though the region has had startups proliferation.  Unlike the traditional definition of Silicon Valley (Menlo Park to Santa Clara) where the economy is overwhelmingly technology geared, Silicon Beach, much like San Francisco, tends to have a more diversified economy whereby tourism, finance, and/or other industries also play a major role. Eustace is an historic narrow boat built for the Wolverhampton-based company Thomas Bantock & Co. for railway transhipment work in the English Black Country.  In the 1950s a cabin was added and Alfred Matty & Co of Deepfields, Coseley converted the hull to a spoon dredger for canal clearance work.  Following a fire it was cut up but the fore end of the boat is now owned by the Black Country Living Museum where it can be seen on the path at the rear of the boat dock.  The boat is a rare survivor of a type of construction unique to Thomas Bantock & Co. s of March 2013 it was shortly due to be restored. Masula boat, also known as masoola or masulah boat, is a kind of non-rigid boat built without knees used on the coast of Madras (the present day city of Chennai), India, along with catamarans.  Locally known as "padagu" or "salangu" among the fisher folks, it is a large, flat-bottomed, high-sided, open boat with a clumsy design consisting of mango wood planks sewed together with strands of coir which cross over a wadding of the same material, but without frames or ribs, so that the shock due to surf is much reduced.  It is specially designed for use where there are no harbours of refuge, chiefly upon the surf-beaten Coromandel Coast of India.  It is used in shooting shore seines and also as a cargo lighter.  Its range extends along the whole of the eastern coast of India northwards of Cape Calimere.  The equivalent type of boats used on the west coast are the beach lighters.  Masula boats are generally smaller, although they can be up to 9 m in length.  The pattern varies across the coast, namely, padava on the Andhra coast and bar boat in Orissa coast.  A variant found in the region between Kakinada and Machilipatnam has ribs inside. Silicon Beach Software was an early developer of software products for the Macintosh personal computer.  It was founded in San Diego, California in 1984 by Charlie Jackson and his wife Hallie.  Jackson later co-founded FutureWave Software with Jonathan Gay, the company that produced the first version of what is now Adobe Flash.  Although Silicon Beach Software began as a publisher of game software, it also published what was called "productivity software" at the time.
Answer: World War II