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December 10, 2021 by Peter T Young 1 Comment

Kahuku Air Base

In the early-1900s, a young Italian named Guglielmo Marconi had a new invention: wireless radio. Global communications (using Morse Code) took a giant leap forward, with a two-pronged system of submarine cables and transoceanic wireless communication.

A Marconi station was set up at Kahuku, Oʻahu with a transmitter/receiver radio station & antenna farm.    This put Hawaiʻi at the forefront in the use of this technology; it was the largest wireless telegraph station in the world in terms of capacity and power. By 1916, there was regular telegraphic communications between Hawaiʻi and Japan, a distance of 4,200 miles.

With the end of WWI, Radio Corporation of America (RCA) took over the facility; then, preparations and defense facilities, in anticipation of WWII, started popping up on the island.

The north-Oʻahu facility was under the overall command of the Hawaiian Air Force (HAF) headquartered at Hickam, Oʻahu. The HAF was activated on October 28, 1940, as the first air force outside the Continental US.  (Bennett)

On November 25, 1941, Army Engineers took over the RCA facility and started constructing an Army Air Base in and around it.  They also constructed two other North Shore airfields at Kawaihāpai (Mokuleʻia/Dillingham) and Haleiwa.

The old Marconi/RCA administration building was converted into air base headquarters and Commanding Officer’s quarters.  The usual theater of operations support buildings were constructed (i.e., control tower, barracks for enlisted men, officer’s quarters, mess halls, chapel, dispensaries, cold storage, two fire stations, paint shop, Post Exchange, radio station, telephone exchange, etc.)

Early attempts at building a single runway on the limestone, sand dunes and wetlands at Kahuku Point were hindered by poor drainage, which necessitated that the runway being relocated three times before a suitable location was found. To mitigate drainage problems at the location, a system of canals, subterranean drain pipes and culverts were built.

Eventually, two runways were built at Oʻahu’s northern-most point (the runways followed the original line of Marconi towers) – the military reservation was named the “Kahuku Airfield Military Reservation;” also known as “Kahuku Air Base.”

Thirty-two earthen revetments were constructed between both runways to provided minimal protection of aircraft and ground maintenance crews during any aerial or sea bombardment.  The typical revetment was trapezoidal in cross section about 14-feet high.

The air base had been planned as a stopover point for the planes on their way to the Western Pacific; the length and width of the runways were a clear indication they were designed to accommodate heavy bombers, i.e., B-17 and B-24, as well as cargo transports ranging from C-47 to C-54. The absence of hangers attested to the airfield being in operation for the duration of the war.  (Bennett)

Kahuku Army Air Base (AAB) was activated on June 26, 1942, and became an important training facility for pilots assigned to Wheeler in central Oʻahu adjacent to the large Army post of Schofield Barracks.

The runways were ideal for training flights as they possessed good approaches, appropriate length, and fine takeoff clearance.  The base accommodated various air groups and squadrons that flew an assortment of aircraft, i.e., B-24, B-25, F-7, P-47 and C-47, which flew out of Kahuku for various periods of time, either pending deployment to the Central Pacific war zone, or rotated back to Oahu for reassignment, or deactivation.

Then “(t)he large Tsunami that hit the Hawaiian Islands on 4/1/46, caused extensive damage to the air base, the NE/SW runaway was within 100 yards of the shoreline and the NW/SE runway, 200 yards.”

According to an Army Corps of Engineers report, “The wave washed over the protecting sand dunes, rushing inland in some places to a half mile, smashing buildings, uprooting parking areas, and bringing tons of sand & debris onto the runways.  Army personnel verbally informed the Estate that their previous fear that the field was too close to the water was amply borne out.”

A portion of the former facility is now part of the James Campbell National Wildlife Refuge.  It was established in 1976 to provide habitat for Hawai‘i’s four endangered waterbirds: aeʻo (Hawaiian stilt,) ʻalae keʻokeʻo (Hawaiian coot,) ʻalae ʻula (Hawaiian moorhen) and koloa maoli (Hawaiian duck.)

As part of the O‘ahu National Wildlife Refuge Complex, the refuge consists of both natural and artificially maintained wetlands. Two wetland units are included within the James Campbell Refuge, the Kiʻi Unit and the Punamano Unit.

Likewise, a portion of the former facility is within the Turtle Bay Resort area.  The Airfield, revetments and barracks occupied approximately 195-acres (23%) of the Resort property.

© 2021 Hoʻokuleana LLC

 

Filed Under: Military Tagged With: Marconi, Turtle Bay, Hawaii, Oahu, Kahuku, Campbell National Wildlife Refuge, Kahuku Air Base

September 24, 2016 by Peter T Young Leave a Comment

Marconi Wireless

Until 1840 any immediate communication between human beings was limited to the range of the eye or the ear. In nations such as France, Russia and Great Britain, fire signal towers stretched the length of the country to serve as early warning systems.

During the nineteenth century scientists and inventors came to better understand electricity’s ability to transmit sound, and with this understanding came such inventions as the telegraph by Samuel Morse in 1840, the telephone by Alexander Graham Bell in 1875, and the phonograph by Thomas Alva Edison in 1877.

In addition to these new wonders came such scientific advances as James Clerk Maxwell’s 1865 theory, which postulated electromagnetic waves existed and moved at a uniform speed, but varied in length and frequency.

In 1888, Heinrich Hertz proved this theory by demonstrating that electricity could bridge a gap from one coil to produce a current in another. These all laid the groundwork for humanity’s delving into the possibility of wireless communication.

Then came Guglielmo Marconi (who was born at Bologna, Italy on April 25, 1874.) In 1895, he began laboratory experiments at his father’s country estate where he succeeded in sending wireless signals over a distance of one and a half miles.

In 1900, he took out his famous patent No. 7777 for “tuned or syntonic telegraphy” and, on an historic day in December 1901, determined to prove that wireless waves were not affected by the curvature of the Earth.

He used his system for transmitting the first wireless signals across the Atlantic between Poldhu, Cornwall, and St. John’s, Newfoundland, a distance of 2,100 miles. (Nobel Prize)

In the Islands, “Telegraph communication seems likely soon to be in operation between our islands. Marconi has successfully sent telegrams across the British channel without wire.”

“An invisible electric ray is flashed from lofty mast, directed to receiver thirty miles away, which records it. So Hawai‘i will not need an inter-island cable. Rain, fog and darkness do not obstruct the ray.” (The Friend, May 1, 1899)

Then interisland wireless came; “Just about the latest wonder accomplished by science is telegraphing without wires, communicating between far distant and mutually invisible points by means of the ether which is believed to exist as a sort of cement holding the molecules of the atmosphere together.”

“Today Hawaiians will be given their first opportunity of witnessing the workings of this marvel the marvel by which a young Italian boy named Marconi astonished the world a few years ago.” (Pacific Commercial Advertiser, June 16, 1900)

Then, the American Marconi Company began establishing global coverage with long distance, paired sending and receiving stations not only in England, France and the United States, but also Spain, Italy, Egypt, India, and Argentina.

Hawaii was viewed as a bridge facilitating wireless communication between California, Hawaii and Japan as well as Australia; he planned facilities at Koko Head and Kahuku. At the time of Kahuku’s opening, it was the largest wireless telegraph station in the world in terms of capacity and power.

Everything in the plant was in duplicate, the one system backing up the other, so there was no reason to have to shut down operations because of a need to undertake repairs. (NPS) “Quite a large staff is housed in the Marconi Hotel, some operators and some engineers.” (Marconi Service News)

“Besides being included in the great chain of wireless stations which are to be erected by the Marconi Company, Hawai‘i has been favored with being selected as the site for the largest wireless station in the world.”

“While situated in the middle of the Pacific ocean, isolated, as it were, from the rest of the world except for a single cable and a wireless station only capable of working at night …”

“… Hawai‘i will be able to throw off this isolation with the coming of the Marconi system, get into a more complete touch with the rest of the world, and be drawn into closer relations with the country of which it is a territory.” (Star Bulletin, April 19, 1913)

The transoceanic stations were officially opened on September 24, 1914, approximately two months after the start of World War I in Europe. (NPS)

The first message (from Governor Lucius Pinkham to President Woodrow Wilson) read, “With time and distance annihilated and space subdued through wireless triumphs and impulse …”

“… the Territory of Hawai‘i conveys its greetings, profound respect and sympathy to Woodrow Wilson, president of the United States, as he so earnestly seeks the blessings of peace and good will for all men and all nations. (Star Bulletin, September 24, 1914)

President responded with a short, “May God bring the nation together in thought and purpose and lasting peace.” (NPS)

“Today marks a new era in transpacific and world-communication for the people of Hawai‘i. With the opening of two great wifeless stations on Oahu by the Marconi Wireless Telegraph Company of America ‘’

“… Uncle Sam’s midpacific territory is brought closer and is bound closer than ever to her sister commonwealth of the mainland.” (Star Bulletin to Associated Press, September 24, 1914)

The Marconi Wireless Telegraph Station at Kahuku includes four buildings: the power house/operating building, hotel, administration building, and manager’s cottage.

With the end of WWI, Radio Corporation of America (RCA) took over the facility; then, preparations and defense facilities, in anticipation of WWII, started popping up on the island.

The north-Oʻahu facility was under the overall command of the Hawaiian Air Force (HAF) headquartered at Hickam, Oʻahu. The HAF was activated on October 28, 1940, as the first air force outside the Continental US. (Bennett)

On November 25, 1941, Army Engineers took over the RCA facility and started constructing an Army Air Base in and around it. (They also constructed two other North Shore airfields at Kawaihāpai (Mokuleʻia/Dillingham) and Haleiwa.)

The old Marconi/RCA administration building was converted into air base headquarters and Commanding Officer’s quarters. The RCA buildings, with the exception of the powerhouse/operating building, were also used by the air field.

The hotel became the base headquarters, the administration building housed base operations, and the manager’s house became the commanding officer’s quarters.

The usual theater of operations support buildings were constructed (i.e., control tower, barracks for enlisted men, officer’s quarters, mess halls, chapel, dispensaries, cold storage, two fire stations, paint shop, Post Exchange, radio station, telephone exchange, etc.)

The April 1, 1946 tsunami devastated the Kahuku Air Base, destroying numerous buildings and covering the runways with debris. Following this tidal wave, military air operations ceased at Kahuku and sometime between June 12, 1946 and March 1947 the lands were returned to Campbell Estate.

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Filed Under: General, Military, Prominent People, Economy Tagged With: Hawaii, Oahu, Kahuku, Kahuku Air Base, Marconi

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