Clarence Leonard “Kelly” Johnson. (guggenheimedal.org)
Clarence Leonard (“Kelly”) Johnson was born at Ishpeming, Michigan, United States of America, 27 February 1910. He was the third of five children of Peter Johnson, a stone mason, and Kjrstie Anderson Johnson. His parents were immigrants from Sweden.
C.L. Johnson, 1932 (Michiganensian)
Kelly Johnson attended Flint Central High School, graduating in 1928. After studying at a community college, Johnson transferred to the University of Michigan at Ann Arbor. He graduated in 1932 with a Bachelor of Science degree in Aeronautical Engineering (B.S.E. AeroE.). He won the Frank Sheehan Scholarship in Aeronautics, which enabled him to continue at the University to earn a Master of Science degree in Aeronautical Engineering (M.S.E.) in 1933.
Kelly Johnson started working as a tool designer for the Lockheed Aircraft Company in Burbank, California, in 1933. After transferring to the engineering department, he was assigned to the company’s Model 10 Electra project. Johnson identified a stability problem with the airplane’s design, and he was sent back to the University of Michigan to conduct a wind tunnel study which resulted in his proposal of the twin vertical tail configuration which was a characteristic of many Lockheed airplanes that followed. Johnson also served as a flight test engineer for the airplane.
A genius of aeronautical engineering and design, he was responsible for all of Lockheed’s most famous aircraft: the Lockheed Hudson and Neptune medium bombers, the P-38 Lightning twin-engine fighter, the P-80 Shooting Star, America’s first full-production jet fighter. He designed the beautiful Constellation airliner. The list is seemingly endless: The F-94 Starfire, F-104 Starfighter, U-2, A-12 Oxcart and the SR-71 Blackbird.
Clarence L. “Kelly” Johnson conducted wind tunnel testing of the Lockheed Model 10 at the University of Michigan. (Lockheed Martin)The prototype Lockheed Model 10 Electra NX233Y during flight testing. (Lockheed Martin)Lockheed Model 12 Electra Jr. (SDASM Catalog #: 01_00091568)Lockheed YP-38 Lightning (U.S. Air Force)Lockheed Model 14-N2 Super Electra Special, c/1419, NX18973. (San Diego Air and Space Museum Archive)Lockheed Model 414 Hudson (A-29A-LO) in U.S. Army Air Corps markings. (U.S. Air Force)Prototype Lockheed Model 18 Lodestar, NX17385. (Lockheed Martin)Lockheed Ventura (IWM ATP 12110C)Clarence L. “Kelly” Johnson (left) and Chief Engineering Test Pilot Milo G. Burcham, with the XC-69. (Lockheed Martin)Lockheed XC-69 prototype, NX25600, landing at Burbank Airport. (Lockheed Martin)The Lockheed XP-80 prototype, 44-83020, at Muroc AAF, 8 January 1944. (Lockheed Martin)Clarence L. “Kelly” Johnson with a scale model of a Lockheed P-80A-1-LO Shooting Star. (Lockheed Martin)Lockheed XP2V-1 Neptune prototype, Bu. No. 48237, 1945. (Lockheed Martin)Lockheed TP-80C-1-LO (T-33A) prototype, 48-356, with P-80C-1-LO Shooting Star 47-173, at Van Nuys Airport, California. (Lockheed Martin)Lockheed YF-94 prototype, 48-356. (See TP-80C prototype, above.) (U.S. Air Force)Lockheed XF-104 prototype, 53-7786, photographed 5 May 1954. (Lockheed Martin)Kelly Johnson seated in the cockpit of a prototype Lockheed XF-104 Starfighter. (Lockheed Martin)Lockheed U-2, “Article 001” (Lockheed Martin)Lockheed L-1049 Super Constellation prototype, NX6700, ex-L-049 NX25600. (Lockheed Martin)The second Lockheed L-1649A Starliner, delivered to Trans World Airlnes in September 1957. (Lockheed Martin)Lockheed EC-121T Warning Star. (U.S. Air Force)Lockheed Model L-349 JetStar.Lockheed A-12 60-6924 (Lockheed Martin)Lockheed SR-71A 69-7953. (U.S. Air Force)Clarence L. (“Kelly”) Johnson, Director of Lockheed’s Advanced Development Projects (“the Skunk Works”) with the first YF-12A interceptor, 60-6934. (Lockheed Martin)
Kelly Johnson was married three times. He married Miss Althea Louise Young, who worked in Lockheed’s accounting department, in 1937. She died of cancer in December 1969. He then married Miss Maryellen Elberta Meade, his secretary, at Solvang, California, 20 May 1971. She died 13 October 1980 of complications of diabetes. He married his third wife, Mrs. William M. Horrigan (née Nancy M. Powers), a widow, and MaryEllen’s best friend, 21 November 1980. Johnson had no children.
Kelly Johnson retired from Lockheed in 1975 as a senior vice president. He remained on the board of directors until 1980.
Clarence Leonard Johnson died 21 December 1990 at St. Joseph’s Medical Center, Burbank, California, after a long period of hospitalization. He was buried at the Forest Lawn Memorial Park in the Hollywood Hills, Los Angeles, California.
A Transcontinental and Western Airlines Lockheed L-049 Constellation over Paris, France. (Unattributed)
5–6 February 1946: Transcontinental and Western Airlines—TWA—”The Trans World Airline,” flew its first revenue international passengers on a scheduled transatlantic flight from La Guardia Field, New York (LGA) to Aéroport de Paris-Orly, Paris (ORY).
The airplane was a Lockheed L-049 Constellation, serial number 2035, NC86511, named Star of Paris, under the command of Captain Harold F. Blackburn. Captains Jack Hermann and John M. Calder, Navigator M. Chrisman and Flight Engineers Art Ruhanen, Ray McBride and Jack Rouge completed the flight crew. Purser Don Shiemwell and Hostess Ruth Schmidt were in the cabin along with 36 passengers.
Star of Paris departed LaGuardia at 2:21 p.m., EST, 5 February. The flight made brief stops at Gander, Newfoundland (YQX) and Shannon, Ireland (SNN), and arrived at Orly Field, at 3:57 p.m., February 6. The elapsed time was 16 hours, 21 minutes.
Photograph from TWA Skyliner Magazine, 9 February 1961, at Page 4
Confusion exists over which TWA Constellation made the first scheduled flight from LGA to ORY. This is probably because two days earlier, 3 February, another L-049, Paris Sky Chief, NC86505, s/n 2026, also commanded by Hal Blackburn, flew from Washington National Airport (DCA) to Paris Orly as a trial. On that flight, the Constellation averaged 316 miles per hour (509 kilometers per hour). This non-scheduled trip took 14 hours, 47 minutes, total elapsed time, with 12 hours 57 minutes actual flight time. Paris Sky Chief‘s TWA fleet number was 505, while Star of Paris was number 555.
Trans World Airlines Lockheed L-049, Paris Sky Chief, NC86505. (www.sedonalegendhelenfrye.com)Harold F. Blackburn, ca. 1945 (Flying Magazine)
Harold F. Blackburn was born in 1901 at Urbana, Illinois. He joined the U.S. Army Air Corps in 1928, and studied aviation at the University of Southern California. He received his Air Corps pilot’s wings in 1930.
In 1932, Blackburn participated in the relief of the Native American reservations near Winslow, Arizona, which had been cut off by a winter storm. His entire unit, the 11th Bombardment Squadron, based at March Field, Riverside, California, was awarded the Mackay Trophy.
Lieutenant Blackburn married Miss Martha Bondurant in 1932. They would have a son Robert, and daughters Beverly, Bonnie and Betty. Beverly died in infancy 1 December 1943. Blackburn would later marry Helen Jones.
Hal Blackburn began flying with TWA in 1934 and remained with the company for over 25 years. During World War II, he flew Boeing 377s across the South Atlantic for the airline’s Intercontinental Division, of which he would become the manager. In addition to the New York-Paris flight in 1946, Blackburn flew TWA’s first Boeing 707 from New York to Paris in 1961.
“Blackie,” as he is known to his friends, has been an active pilot since 1919. His air time equals three years spent above the earth’s surface during which he has logged more than six and a half million miles . . . The Washington Post named him the “Ideal Father” in 1946. Capt. Blackburn also assisted with the formation of Saudi Arabian Airlines, Ethiopian Airlines and Deutsche-Lufthansa. Viewed by the news media as the ideal model pilot, Capt. Blackburn has been the subject of two lengthy profiles in the New Yorker magazine . . . In 26,800 hours of flying, Capt. Blackburn never injured a passenger, nor damaged an aircraft, and was never late for a flight. Married for 32 years, he is the father of four children and three times a grandfather. He resides in the heart of Pennsylvania Dutch Country. He retired from flying in 1962. His last flight, in command of a TWA SuperJet[the company’s name for the Boeing 707 or Convair 880] from Rome to New York, was the subject of an hour-long television documentary.
—The Indiana Gazette, Monday, 14 October 1963, Page 5 at Columns 2–4
Captain Blackburn was the subject of Like a Homesick Angel, a biography by John Bainbridge, Houghton Mifflin, 1964. He died at Oakland, California, 4 August 1989, at the age of 87 years.
A TWA Lockheed L-049 Constellation, NC86517. (Ed Coates Collection)
Star of Paris (serial number 2035), a Lockheed Model L-049-46 Constellation, had been built at Lockheed Aircraft Corporation’s Burbank, California, plant and delivered to Transcontinental and Western in December 1945. The airliner remained in service with TWA until 1 September 1961. During that time it was also named Star of Dublin.
The Lockheed Constellation first flew in 1942, and was produced for the U.S. Army Air Corps as the C-69. With the end of World War II, commercial airlines needed new airliners for the post-war boom. The Constellation had transoceanic range and a pressurized cabin for passenger comfort.
The Lockheed L-049 Constellation was operated by a flight crew of four and could carry up to 81 passengers. The airplane was 95 feet, 1 3⁄16 inches (28.986 meters) long with a wingspan of 123 feet, 0 inches (37.490 meters), and overall height of 23 feet, 7⅞ inches (7.210 meters). It had an empty weight of 49,392 pounds (22,403.8 kilograms) and maximum takeoff weight of 86,250 pounds (39,122.3 kilograms).
Trans World Airlines’ Lockheed L-049 Constellation NC90818, Star of the Red Sea, at San Francisco, California, 10 June 1948. (Bill Larkins/Wikimedia)
The L-049 was powered by four air-cooled, supercharged and fuel-injected, 3,347.662-cubic-inch-displacement (54.858 liter) Wright Aeronautical Division Cyclone 18 ¹ 745C18BA3 two-row 18-cylinder radial engines with a compression ratio of 6.5:1. The -BA3 was rated at 2,000 horsepower at 2,400 r.p.m., or 2,200 horsepower at 2,800 r.p.m., for takeoff, (five minute limit). The engines drove 15 foot, 2 inch (4.623 meter) diameter, three-bladed Hamilton Standard Hydromatic constant-speed propellers through a 0.4375:1 gear reduction. The 745C18BA3 was 6 feet, 4.13 inches (1.934 meters) long, 4 feet, 7.78 inches (1.417 meters) in diameter and weighed 2,842 pounds (1,289.11 kilograms).
The L-049 had a cruise speed of 313 miles per hour (503.72 kilometers per hour) and a range of 3,995 miles (6,429.3 kilometers). Its service ceiling was 25,300 feet (7,711 meters).
22 C-69s and 856 Constellations of all types were built. Designed by the famous Kelly Johnson, the Lockheed Constellation was in production from 1943–1958 in both civilian airliner and military transport versions. It is the classic propeller-driven transcontinental and transoceanic airliner.
“TWA Lockheed Constellation at Paris-Orly” by Lucio Perinotto. For more striking paintings by the artist, please visit his web site at http://www.lucioperinotto.com/
On 18 November 1950, TWA’s Constellation NC86511 suffered failures of the two inboard engines while taking off from Los Angeles International Airport (LAX). The airliner was diverted to nearby Long Beach Airport (LGB) for an emergency landing. The crew made an instrument approach and could not see the runway until the last moment, touching down at approximately midway. The runway was wet and the airplane could not be stopped before running off the end. The right main landing gear collapsed. The Constellation was damaged but repaired and returned to service. It was later renamed Star of Dublin.
TWA Lockheed Constellation after landing accident at Long Beach, California, 18 November 1950. (Aviation Safety Network)
On 1 September 1961, NC86511 was operating as TWA Flight 529 from Chicago Midway Airport (MDW) to Los Angeles, California. Shortly after takeoff a mechanical failure caused to airplane to pitch up and stall. The flight crew was unable to regain control of the Constellation and it crashed in a field near Hinsdale, Illinois. All 78 persons on board were killed.
The crash site of Trans World Airlines’ Flight 529, Lockheed L-049 Constellation s/n 2035, NC86511, Star of Dublin.
Pan American World Airways’ first Lockheed L-049 Constellation, NC88836, serial number 2036, photographed at Lockheed Air Terminal, Burbank, California in December 1945. It is temporarily marked NX88836. (Lockheed Martin photograph via R.A. Scholefield Collection)
3 February 1946: Pan American World Airways inaugurated the commercial operation of its new Lockheed L-049-46-21 Constellation, Clipper Mayflower, NC88836, with scheduled flights from New York to Bermuda. The Constellation flew the southbound route in 2 hours, 22 minutes.
On the same day, at 4:17 p.m., Eastern Standard Time, another Pan Am Constellation, under the command of Captain Robert D. Fordyce, departed LaGuardia Airport, New York, for London, England, with 30 passengers and a ton of cargo. The Lockheed made refueling stops at Gander, Newfoundland, and Shannon, Ireland, before finally arriving at Hurn Airport, Bournemouth, (approximately 100 miles southwest of London) at 7:50 a.m., EST, (12:50 GMT), 4 February, 1946. The total elapsed time was 15 hours, 32 minutes, with 12 hours, 49 minutes of actual flight.
According to Logbook Magazine, NC88836, Lockheed serial number 2036, was delivered to Pan Am on 5 January 1946. While with the airline it also carried the name Clipper Yankee Ranger. 2036 was transferred to Cubana de Aviación (owned by Pan Am since 1932) in 1953, and re-registered CU-T-547. It served with several other airlines over the next 15 years, including El Al Israel Airlines, registered 4X-AKE. The Constellation was taken out of service in 1968 and placed in storage at Tel Aviv. It was scrapped later that year.
The Lockheed Constellation first flew in 1942, and was produced for the U.S. Army Air Corps as the C-69. With the end of World War II, commercial airlines needed new airliners for the post-war boom. The Constellation had transoceanic range and a pressurized cabin for passenger comfort.
Pan American World Airway’s’ Lockheed L-049 Constellation NC88836, Clipper Mayflower, at London Airport, 1946. (Royal Air Force Museum)
The Lockheed L-049 Constellation was operated by a flight crew of four and could carry up to 81 passengers. The airplane was 95 feet, 1 3⁄16 inches (28.986 meters) long with a wingspan of 123 feet, 0 inches (37.490 meters), and overall height of 23 feet, 7⅞ inches (7.210 meters). It had an empty weight of 49,392 pounds (22,403.8 kilograms) and maximum takeoff weight of 86,250 pounds (39,122.3 kilograms).
The L-049 was powered by four air-cooled, supercharged and fuel-injected, 3,347.662-cubic-inch-displacement (54.858 liter) Wright Aeronautical Division Cyclone 18 ¹ 745C18BA3 two-row 18-cylinder radial engines with a compression ratio of 6.5:1. The -BA3 was rated at 2,000 horsepower at 2,400 r.p.m., or 2,200 horsepower at 2,800 r.p.m., for takeoff, (five minute limit). The engines drove 15 foot, 2 inch (4.623 meter) diameter, three-bladed Hamilton Standard Hydromatic constant-speed propellers through a 0.4375:1 gear reduction. The 745C18BA3 was 6 feet, 4.13 inches (1.934 meters) long, 4 feet, 7.78 inches (1.417 meters) in diameter and weighed 2,842 pounds (1,289.11 kilograms).
The L-049 had a cruise speed of 313 miles per hour (503.72 kilometers per hour) and a range of 3,995 miles (6,429.3 kilometers). Its service ceiling was 25,300 feet (7,711 meters).
22 C-69s and 856 Constellations of all types were built. Designed by the famous Kelly Johnson, the Lockheed Constellation was in production from 1943–1958 in both civilian airliner and military transport versions. It is the classic propeller-driven transcontinental and transoceanic airliner.
Crew members of Pan American World Airways’ Clipper America, a Lockheed L-749 Constellation, N86527. Clipper America and her crew, under Captain Hugh H. Gordon, with twenty passengers, circled the world 17–29 June 1947, in 92 hours, 43 minutes flight time. (Pan American World Airways photograph via everythingPanAm.com)
¹ The Cyclone 18 series was also known as the Duplex Cyclone.
Lockheed XC-69 Constellation 43-10309 (L-049 NX25600) in flight. (San Diego Air & Space Museum Archive)
9 January 1943: At the insistence of the United States Army Air Forces, Boeing’s Chief Test Pilot, Eddie Allen, made the first flight of the Lockheed L-049 Constellation prototype, NX25600, from Lockheed Air Terminal at Burbank, California, to Muroc Army Airfield (today known as Edwards Air Force Base). Lockheed’s Chief Test Pilot, Milo G. Burcham, was the co-pilot.
Lockheed XC-69 Constellation 43-10309 (L-049 NX25600) in flight. (San Diego Air & Space Museum Archive)
Also on board were Lockheed’s chief research engineer, Clarence L. (“Kelly”) Johnson; Rudy Thoren, Johnson’s assistant; and Dick Stanton, chief mechanic.
The Lockheed Constellation was designed by a team led by Chief Engineer Hall Livingstone Hibbard, left, and Chief Research Engineer Clarence Leonard “Kelly” Johnson. (Lockheed)
When the flight ended after 58 minutes, Allen said, “This machine works so well that you don’t need me anymore!” With that, Allen returned to Seattle.
The Los Angeles Times reported:
SUPER TRANSPORT PLANE IN DEBUT
Lockheed’s Air Marvel Makes First Flight; Believed to Be World’s Largest and Fastest; Built Like Fighter, Can Outspeed Jap Zero
BY MARVIN MILES
Into the winter sky yesterday swept a brilliant new star—Lockheed super-transport Constellation.
First of a galaxy to come, the four-engine colossus sped down the long east-west runway at Lockheed Air Terminal, skipped nimbly off the concrete and boomed upward with the surging roar of 8000 unleashed horses.
A few breath-taking seconds’ full throttle had written a matter-of-fact climax to two years of secret development that evolved a 60-passenger transport faster than a Jap Zero fighter.
There were no fanfares, no speeches—simply an unvarnished war production takeoff, emphasizing as nothing else could the grim driving need for huge work planes to carry the battle swiftly to the ends of the earth.
Yet it was the first significant aviation event of 1943.
Lockheed XC-69 Constellation 43-30109 during its first flight, 9 January 1943. (Lockheed Martin Aeronautics Company)
Built along the slim, graceful lines of a fighter the craft is faster than any four-engine bomber now in service. It can cross the continent in less than 9 hours,fly to Honolulu in 12. Even at half power its cruising speed is approximately 100 miles per hour faster than that of a standard airliner!
Within its supercharged cabin, air-density will remain at the 8000-foot level when the Constellation is cruising at “over-the-weather” altitudes up to 35,000 feet. So great is its power that the monster can maintain 25,000 feet on three engines, 16,500 on two.
As for economy of operation, the new sky queen can fly her full load hour after hour using but one gallon of gasoline per mile.
Lockheed XC-69 Constellation 43-10309 (L-049 NX25600) at Lockheed Air Terminal, with engines running. Looking west-northwest across the San Fernando Valley. (San Diego Air & Space Museum Archive)
ONE TAXI TEST
At the controls when the super-transport lifted its tricycle gear in flight were Eddie Allen, Army pilot and veteran four-engine flyer, and Milo Burcham, Lockheed test pilot noted for his substratosphere testing of the P-38. Also in the ship were C.L. (Kelly) Johnson, chief research engineer for the aircraft company; Rudy Thoren, Johnson’s assistant, and Dick Stanton, chief mechanic.
Chief Research Engineer Clarence L. “Kelly” Johnson (left) and Chief Engineering Test Pilot Milo G. Burcham, with the XC-69 Constellation. (Lockheed Martin Aeronautics Company)
There was but one taxi test yesterday, highlighted by a brief blaze in one of the four engines following a backfire as the ship turned to roll back to the head of the runway.
The fire was doused quickly and the Constellation stood ready for her maiden flight, he nose into a gentle breeze, the focal point of hundreds of eyes of workers, Army guards and officials watched expectantly.
Each engine “revved up”in turn, sending deep-throated echoes over the sun-drenched terminal.
Then the four black propellers whirled as one.
The Constellation shot forward, the wind in her teeth, a hurtling, bellowing land monster—until her propellers plucked her from the earth in an incredibly short span of runway and sent her thundering triumphantly toward the sun.
GLIDES BACK EASILY
In a moment she had almost vanished, only to bank in a wide turn and drone back over the terminal twice before leading her covey of lesser following craft off toward the desert to the Army airport at Muroc Dry Lake where she landed gracefully an hour later.
Prototype Lockheed L-049 Constellation NX25600 at Muroc Dry Lake on the high desert of southern California, 9 January 1943. (San Diego Air & Space Museum Archive)
Shortly before dusk the giant craft returned to the Burbank terminal, slipped down the long “landing groove” of air and settled easily to the runway.
Her debut was over.
Today she will begin the exhaustive test flights to determine her performance before she is turned over to T.W.A. and the Army for the grueling business of war. . . .
—Los Angeles Times, Vol. LXII, Sunday morning, 10 January 1943, Page 1, Columns 1 and 2; Page 2, Columns 2 and 3. The article continues in Column 4. (The photographs are not a part of the original article.)
The prototype Lockheed XC-69, 43-10309 (NX25600), landing at Lockheed Air Terminal, Burbank, California, 1943. (Lockheed Martin Aeronautics Company)
The Lockheed Model 49-46-10, company serial number 049-1961, was designated XC-69 by the U.S. Army Air Forces and assigned serial number 43-10309.
The Constellation was operated by a flight crew of four: two pilots, a navigator and a flight engineer. It could carry up to 81 passengers. The airplane was 95 feet, 1 3⁄16 inches (28.986 meters) long with a wingspan of 123 feet, 0 inches (37.490 meters), and overall height of 23 feet, 7⅞ inches (7.210 meters). It had an empty weight of 49,392 pounds (22,403.8 kilograms) and maximum takeoff weight of 86,250 pounds (39,122.3 kilograms).
The XC-69 was powered by four air-cooled, supercharged, 3,347.662-cubic-inch-displacement (54.858 liter), Wright Aeronautical Division Cyclone 18 745C18BA2 engines. Also known as the Duplex Cyclone, these were a two-row, 18-cylinder radial engines with a compression ratio of 6.5:1, which required 100/130-octane aviation gasoline. They were rated at 2,000 horsepower at 2,400 r.p.m., or 2,200 horsepower at 2,800 r.p.m. for takeoff, (five minute limit). The 745C18BA2 was 6 feet, 4.26 inches (1.937 meters) long, 4 feet, 7.78 inches (1.417 meters) in diameter and weighed 2,595 pounds (1,177 kilograms). The engines drove 15 foot, 2 inch (4.623 meter) diameter, three-bladed Hamilton Standard Hydromatic 43E60 constant-speed propellers through a 0.4375:1 gear reduction.
The L-049 had a cruise speed of 313 miles per hour (504 kilometers per hour) and a range of 3,995 miles (6,429 kilometers). Its service ceiling was 25,300 feet (7,711 meters).
In this photograph of the Lockheed XC-69 prototype at Lockheed Air Terminal, the civil experimental registration numbers, NX25600, are visible on the rudder and under the left wing. Looking northeast, the Verdugo Mountains of Southern California are in the background. (San Diego Air & Space Museum Archive)This is a rare color photograph of the prototype Lockheed XC-69 Constellation, 43-10309, (L-049 NX-25600) with a Lockheed UC-101, 42-94148 (ex-Vega 5C NC14236) at Lockheed Air Terminal, Burbank California. This picture represents 15 years of technological advancement. (Lockheed Martin Aeronautics Company)
The prototype XC-69 was later re-engined with Pratt & Whitney Double Wasp 2SC14-G (R-2800-83) engines and designated XC-69E. These had a Normal rating of 1,700 horsepower at 2,600 r.p.m., to 7,300 feet (2,225 meters), 1,500 horsepower at 17,500 feet (5,334 meters), and 2,100 horsepower at 2,800 r.p.m. for Takeoff.
Lockheed XC-69 Constellation 43-10309. (Lockheed Martin Aeronautics Company)Lockheed XC-69 Constellation 43-10309. (Lockheed Martin Aeronautics Company)
After the war, the Constellation prototype was sold to Howard Hughes’ Hughes Aircraft Company for $20,000 and registered as NX67900. In May 1950, Lockheed bought the prototype back from Hughes for $100,000 and it was again registered as NC25600. It had accumulated just 404 flight hours up to this time.
The prototype Lockheed XC-69 Constellation, 43-10309, is parked at Howard Hughes’ Culver City airport. In the foreground is the Hughes XF-11, 44-70155. Photographed 7 July 1946. (University of Nevada, Las Vegas Libraries)The prototype Lockheed L-1049 Super Constellation NX25600 (XC-69 43-10309), flying above an inversion layer. The San Gabriel Mountains of Southern California are in the background. (Lockheed Martin Aeronautics Company)
Lockheed then converted 049-1961 to a prototype for the L-1049 Super Constellation with another registration, NX6700. In 1952, it was once again converted, this time as an aerodynamic test aircraft for the U.S. Navy PO-1W radar early warning aircraft (later redesignated WV-1 and EC-121 Warning Star). It was also used to test the Allison YT56 turboprop engine by placing it in the #4 position.
Lockheed L-1049 prototype NX6700 as an aerodynamics test aircraft for the U.S. Navy PO-1W airborne early warning Warning Star. (SDASM Archives)
Finally, in 1958, the first Constellation was purchased as a source of spare parts by California Airmotive Corporation and was dismantled.
Lockheed built two XC-69 prototypes. Twenty-two C-69s and 856 Constellations of all types were produced. The Lockheed Constellation was in production from 1943–1958 in both civilian airliner and military transport versions. It is the classic propeller-driven transcontinental and transoceanic airliner.
Your intrepid TDiA correspondent with “Bataan,” General Douglas MacArthur’s Lockheed VC-121A Constellation, 48-613, at Valle Airport, Arizona, 3 July 2012. (Photograph by Mrs. TDiA)
Howard Robard Hughes, Jr., at the controls of a Transcontinental and Western Airlines Lockheed Constellation, demonstrating a new safety device, 1 May 1947. “Four warning lights, part of the apparatus, are in a row directly below the windshield.” (UNLV Digital Collections whh000022)Transcontinental and Western Airlines’ Lockheed L-049 Constellation NC90817 (c/n 2079), “Star of the Adriatic,” taking off from Culver City, 3 May 1947. (UNLV Digital Collections whh 001525
2 May 1947
The Los Angeles Times reported:
Howard Hughes Tests Air Robot
Howard Hughes, manufacturer-pilot and chief stockholder in Trans World Airline, yesterday demonstrated a 16-pound radar device which he believes will act as a “seeing-eye” for transport aircraft flying in darkness or bad weather and prevent a substantial share of airline crashes.
Using one of T.W.A.’s 45-ton Constellations, Hughes personally piloted a radar-equipped plane over—and sometimes practically in—the San Gabriel Mountain canyons north of Mt. Wilson to give visiting aeronautics writers a firsthand peak into the device’s operations.
Warning Lights
The apparatus consists of a robot-radar transmitter and receiver and a set of warning lights and buzzers. The transmitter emits 400 strong electronic pulses every second; the receiver catches them on the “bounce” at the rate of 1000 feet in one-millionth of a second.
Set at 500 and 2000 feet, the device thus gives audio-visual warning when the plane comes within range of objects or terrain at those distances. The “beam” itself is a pulsating cone showing obstructions within a 150-degree arc.
Climb Executed
Hughes demonstrated that the Connie, with its 8800 horsepower, can easily execute a turning climb out of a box canyon inside the 2000-foot warning range given by radar.
All T.W.A. planes will have this device within five weeks, he said, thus becoming the first radar-outfitted commercial transports. In production, the equipment can be made for $130 a set. It will be available “if wanted” to other airlines, he added.
—Los Angeles Times, Vol. LXVI, Friday Morning, May 2, 1947. Part I, Page 2, Column 4
TWA’s Lockheed L-049 Constellation NC90817, “Star of the Adriatic,” during a test flight, 2 May 1947. (UNLV Digital Collections whh00310)TWA Lockheed L-049 Constellation NC90817 (c/n 2079), “Star of the Adriatic,” during a test flight, 2 May 1947. (UNLV Digital Collections whh000306)Lockheed L-049 Constellation, NC90817, in flight, 2 May 1947. (UVLV Digital Collection wwh000093)
Hughes Demonstrates New Radar Device to Reduce Plane Crashes
By RALPH M. DIGHTON
CULVER CITY, MAY 1 (AP) —Plane builder Howard Hughes today personally demonstrated what he said was the world’s first successful application of war-developed radar to commercial airliners.
In a test flight for newsmen, a miniature radar device was set to flash warnings when the T.W.A. Constellation Hughes was piloting approcahed within 2,000 feet of terrain obstructions. The range of radar pulse mechanism was reduced to 500 feet for landings.
LIGHT AND CHEAP
The radar device weighs less than 16 pounds, compared with the 700-pound radar equipment carried in the P-60 Black Widow of war fame. Hughes said it could be installed in any plane for $130.
He plans to have these devices placed in all planes operated by Trans World airline, of which he is principal stockholder, in four or five weeks. It will be made available to other airlines at cost. As soon as airline requirements are met, he will release the equipment to private fliers.
“Earlier radar is difficult to interpret and requires a trained operator,” Hughes said. “It was so inefficient that we are throwing it out of our planes. This new device is simple. You set it for what ever range is necessary. I know it is accurate up to 5,000 feet. When the lights flash on, the pilot either climbs of veers to one side, as his knowledge of surrounding topography indicates.
The scope of the device is roughly a quarter of a sphere ahead and below the plane.
During the demonstration, Hughes piloted the Constellation through a canyon in the Santa Monica mountains north of here which pilots usually avoid.
LIGHTS FLASH ON
When the plane was within 2,000 feet of the mountain on the left hand side of the canyon, an amber light flashed in the cockpit. He continued approaching the mountain until he was less than 1,000 feet away. He then veered 160 degrees to the left, climbing at a speed of 300 miles an hour.
Just before he reached the peak, a red light flashed on, indicating the plane was within 500 feet of the mountain. By the time the plane surmounted the peak, both the red and amber lights had flashed off, showing that Hughes had cleared the mountain with the aid of his warning device by more than 2,000 feet.
The co-pilot on the flight was R.C. Loomis, director of the T.W.A. engineering and overhaul base at Kansas City.
–The San Bernardino Daily Sun, Friday, May 2, 1947, Page 2, Column 1 and 2
