Eastern Air Lines’ Lockheed L-188A Electra N5501 (Line number 1005 Fleet Number 501). San Diego Air & Space Museum, Catalog #: 00068415)
12 January 1959: The Lockheed L-188 Electra made its first commercial passenger flight when Eastern Air Lines Flight 602 departed Miami International Airport, Miami, Florida, at 9:30 a.m., Eastern Standard Time. The destination was Montreal, Quebec, Canada, with an intermediate stop at New York City.
Eastern had received eight or nine of the new Electras prior to this flight. Which specific airplane was used is not known.
Which specific airplane is not known. Eastern Air Lines had received eight or nine L-188s prior to the 12 January flight.¹
The Lockheed L-188A Electra had made its first flight at the Lockheed Air Terminal,² Burbank, California, 6 December 1957.
The first prototype Lockheed L-188 Electra, N1881. (Robert Reedy Collection/San Diego Air & Space Museum, Catalog #: 46544455)
The Lockheed Model 188A Electra is a four-engine, low-wing, commercial airliner with retractable tricycle landing gear, and powered by four turboprop engines. It was operated by a pilot, co-pilot and flight engineer, and could carry a maximum of 98 passengers. The L-188A was the first production variant. It is 104 feet, 6.5 inches (31.864 meters) long, with a wingspan of 99 feet, 0.00 inches (30.175 meters), and overall height of 32 feet, 11.6 inches (10.048 meters). The Electra had an empty weight of 57,400 pounds (26,036 kilograms), and maximum takeoff weight (MTOW) of 113,000 pounds (51,256 kilograms).
The L-188A was powered by four Allison Model 501-D13 (T56-A-1) turboprop engines. The -D13 is a single-shaft axial-flow gas turbine engine. It had a 14-stage compressor, 6-tube combustor, a 4-stage turbine. It was rated at 3,750 shaft horsepower at 13,820 r.p.m. The engines drove four-blade, square-tip Aeroproducts propellers with a diameter of 13 feet, 6 inches (4.115 meters), at 1,020 r.p.m. The -D13 is 12 feet, 1.0 inches (3.683 meters) long, 2 feet, 3.0 inches (0.686 meters) wide and 3 feet, 0.0 inches (0.914 meters) high. It weighs 1,750 pounds (794 kilograms).
The L-188A Electra’s cruise speed is 324 knots (373 miles per hour/600 kilometers per hour), and its maximum speed, 389 knots (448 miles per hour/720 kilometers per hour). The Critical Mach Number (Mcr) was 0.711. It could climb at 1,970 feet per minute (10 meters per second). Its service ceiling is 28,400 feet (8,656 meters), and its maximum range, 2,410 nautical miles (2,773 statute miles/4,463 kilometers) or 1,900 nautical miles (2,186 statute miles/3,519 kilometers) at maximum payload.
The L-188 was involved in two fatal crashes believed to be caused by “whirl mode flutter:” Braniff International Airways Flight 542, 29 September 1959, and Northwest Orient Flight 710, 17 March 1960. A problem with the engine mounts caused cracks to the gear box mountings. Oscillations were transferred to the wings and resulted in wing failures.
The airplanes were also very noisy, resulting in passenger complaints. Lockheed redesigned the engine nacelles to deal with this problem.
Lockheed built only 170 Electras. They were produced from 1957 to 1961.
¹ (The first four L-188s, L/N 1001–1004, had been retained by Lockheed as test beds before being sold on.)
N5501 (l/n 1005) to EAL in January 1959 (exact date not known); leased to SAM Columbia 9/69 as HK-554; returned to EAl 3/77 as N5501E; sold to Argentine Navy 4/77 for P-3 spare parts
N5502 (l/n 1007) to EAL 23 October 1958. To Air Manila PI-C1061 1 December 1971; RP-C1061 Nov 1974. Crashed 4 Jun 1976
N5503 (l/n 1008) to EAL Oct 1958. To Air Manila PI-C1062 Mar 1972; RP-C1062 June 74; wfu an dstd MNL Jan 75
N5504 (l/n 1009) to EAL 2 Nov 1958 WFU Dec 1977; converted to freighter to Zantrop International Airlines 20 Oct 1978; DBR 21 Mar 82 hangar collapse
N5505 (l/n 1010) to EAL Nov 1958; leased to SAM Columbia HK-1274 Nov 1971; hijacked 30 May 1973; returned to EAL but not operated, N5505, N5505C. American jet Industries Mar 1978
N5506 (l/n 1011) to EAL Dec 1958. To Copa Airways HP-579 Oct 1971, WFU and STD MHV Dec 1985
N5507 (l/n 1012) EAL Nov 1958 WFU Oct 1970; converted to freighter, Zantrop International Airlines Jan 78; Turboprop Ventures Sep 2006
N5509 (l/n 1013) to EAL Nov 1958; leased to SAM Columbia HK-553 Oct 1969; Returned to EAL N5509Y, stored at VNY; to American Jet Industries Feb 1977
² In 1967, the name of the Lockheed Air Terminal was changed to Hollywood-Burbank Airport. After several more name changes, including Bob Hope Airport, it is once again known as Hollywood-Burbank. Its FAA identifier is BUR.
Wreck of Western Air Express Flight 7, a Boeing Model 247D, NC13315, at Los Pinetos Peak near Newhall, California, 12 January 1937. (Santa Clarita Valley History in Pictures)
12 January 1937: Western Air Express Flight 7, a Boeing 247D airliner, NC13315, had originated at Salt Lake City, Utah, and after a stop at Las Vegas, Nevada, continued on toward Union Air Terminal, Burbank, California. Aboard were a crew of three and ten passengers.
In fog and falling snow, Captain William Walker Lewis and co-pilot Clifford P. Owens crossed over Saugus, California,
“. . . at 5,200 feet [1,585 meters], aircraft was already 300 feet [91 meters] too low. . . Pilot tried to contact Burbank without any success. Due to low visibility caused by fog, pilot did not realize he was flying at an insufficient altitude. In a descent rate of 525 feet per minute [2.667 meters per second], aircraft hit Pinetos Peak.”
— Bureau of Air Commerce report.
According to statements after the accident, Captain Lewis suddenly saw a ridge immediately ahead, and unable to avoid it, cut his engines and raised the nose in an attempt to reduce the impact. The accident occurred at 11:07 a.m., Pacific Time.
Illustration from the Los Angeles Times, Vol. LVI, Wednesday, 13 January 1937, Page 6, Columns 3–6.
The crash was heard by patients at the Olive View Sanitorium and ranchers on the north side of the mountains. Two hours later, passenger Arthur S. Robinson arrived at the hospital and said, “Get help up there for the twelve others. It was a forced landing—they’re all injured but I believe they’re all alive.”
Boeing 247D NC13315, 12 January 1937. (Santa Clarita Valley History in Pictures)
One passenger, James A. Braden, president of the Braden-Sutphin Ink Co., of Cleveland, Ohio, was killed immediately. The co-pilot, Owens, and three more of the passengers died of injuries within the next several days.
One of those who died was famed adventurer and film maker Martin Johnson. His wife, Osa Johnson, was also aboard Flight 7 and was seriously injured. Another survivor, Robert T. Anderson, would later own Pea Soup Anderson, a famous restaurant in Buellton, California.
Osa and Martin Johnson. (Osa and Martin Johnson Safari Museum)
The Boeing Model 247 is considered to be the first modern airliner because of its all-metal, semi-monocoque construction, cantilevered wing and retractable landing gear. It was 50 miles per hour (80 kilometers per hour) faster than its contemporaries, and could climb on one engine with a full load.
The Model 247 was operated by a pilot, co-pilot and a flight attendant and carried up to ten passengers. The airplane was 51 feet, 5 inches (15.672 meters) long, with a wingspan of 74 feet, 1 inch (22.581 meters) and overall height of 12 feet, 5 inches (3.785 meters). The empty weight was 8,921 pounds (4,046.5 kilograms) with a maximum takeoff weight of 16,805 pounds (7,622.6 kilograms).
The Duralamin skin panels were anodized, rather than painted, for corrosion protection. This saved weight, and resulted in the 247’s characteristic gray-green color.
Western Air Express Boeing 247D NC13315. The nose baggage compartment door is open. (Ed Coates Collection)
The airliner was powered by two air-cooled, supercharged, 1,343.804-cubic-inch-displacement (22.021 liters) Pratt & Whitney Wasp S1H1-G nine-cylinder radial engines with a compression ratio of 6.03:1. The S1H1-G had a Normal Power rating of 550 horsepower at 2,200 r.p.m., to 8,000 feet (2,438 meters), and 600 horsepower at 2,250 r.p.m. for Takeoff. They drove three-bladed Hamilton Standard constant-speed propellers through a 3:2 gear reduction, when installed on the 247D. The Wasp S1H1-G was 3 feet, 11.80 inches (1.214 meters) long, 4 feet, 3.61 inches (1.311 meters) in diameter, and weighed 930 pounds (422 kilograms).
The Boeing 247 had a maximum speed of 200 miles per hour (322 kilometers per hour) with a cruising speed of 188 miles per hour (303 kilometers per hour. It had a range of 745 miles (1,199 kilometers) and a service ceiling of 25,400 feet (7,742 meters).
75 Model 247s were built. 60 were operated by Boeing Air Transport.
[Note: the windshield was canted forward to prevent instrument panel lighting from reflecting into the cockpit at night. Unfortunately, ground lighting was reflected instead. This was soon changed to a rearward slant and resulted in a slight increase in speed.]
Western Air Express Boeing 247D NC13315, 1933. (Santa Clarita Valley History in Pictures)
Colonel Clyde P. Evely, USAF with the crew of the record-setting B-52H Stratofortress 60-0040. (U.S. Air Force)
11 January 1962: Colonel Clyde P. Evely, United States Air Force, and his crew flew their Boeing B-52H-150-BW Stratofortress, 60-0040, of the 4136th Strategic Wing, from Kadena Air Force Base, Okinawa to Torrejon Air Base, Spain. Called Operation Persian Rug, this was an unrefueled 21 hour, 52 minute flight that covered 12,532.30 miles (20,168.78 kilometers) at an average 604.44 miles per hour (972.75 kilometers per hour) and set 11 Fédération Aéronautique Internationale (FAI) and seven National Aeronautic Association records for speed over a recognized course.
The route of Boeing B-52H Stratofortress 60-0040. (The Baltimore Sun, 12 January 1962, Page 2, Columns 6–7)
Others on the flight were Major Robert Carson and Captain Henry V. Sienkiewicz, second pilot and co-pilot; Major Edmund Bible, navigator; Major Dwight Baker, radar navigator; Captain Edward McLaughlin, electronics warfare officer; 1st Lieutenant William Telford, second navigator; and Master Sergeant Richard Posten, gunner. Chuck Tibbetts, vice president of the National Aeronautic Association, flew aboard the bomber to monitor the record-setting flight.
FAI Record File Num #8647 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Distance
Performance: 20 168.78 km
Date: 1962-01-11
Course/Location: Okinawa (Japan) – Madrid (Spain)
Claimant Clyde P. Evely (USA)
Aeroplane: Boeing B-52H
Engines: 8 Pratt & Whitney TF-33(military desig.for JT-3D)
FAI Record File Num #16481 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a recognised course
Performance: 929.30 km/h
Date: 1962-01-11
Course/Location: Okinawa (Japan) – Madrid (Spain)
Claimant Clyde P. Evely (USA)
Aeroplane: Boeing B-52H
Engines: 8 Pratt & Whitney TF-33(military desig.for JT-3D)
FAI Record File Num #16483 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a recognised course
Performance: 972.75 km/h
Date: 1962-01-11
Course/Location: Okinawa (Japan) – Madrid (Spain)
Claimant Clyde P. Evely (USA)
Aeroplane: Boeing B-52H (60040)
Engines: 8 Pratt & Whitney TF-33(military desig.for JT-3D)
The flight crew of 60-0040 received awards for their world record flight, at Torrejon Air Base, Spain, 11 January 1962. (U.S. Air Force)President John F. Kennedy congratulates the crew of 60-0040. This photograph shows the crew and President Kennedy with a different airplane, B-52G 57-6486. (U.S. Air Force)Boeing B-52H Stratofortress. (U.S. Air Force)
The B-52H is a sub-sonic, swept wing, long-range strategic bomber. It has a crew of five. The airplane is 159 feet, 4 inches (48.6 meters) long, with a wing span of 185 feet (56.4 meters). It is 40 feet, 8 inches (12.4 meters) high to the top of the vertical fin. Maximum Takeoff Weight (MTOW) is 488,000 pounds (221,353 kilograms).
There are eight Pratt & Whitney TF33-PW-3 turbofan engines mounted in two-engine pods suspended under the wings on four pylons. Each engine produces a maximum of 17,000 pounds of thrust (75.620 kilonewtons). The TF-33 is a two-spool axial-flow turbofan engine with 2 fan stages, 14-stage compressor stages (7 stage intermediate pressure, 7 stage high-pressure) and and 4-stage turbine (1 stage high-pressure, 3-stage low-pressure). The engine is 11 feet, 10 inches (3.607 meters) long, 4 feet, 5.0 inches (1.346 meters) in diameter and weighs 3,900 pounds (15,377 kilograms).
The B-52H can carry approximately 70,000 pounds (31,750 kilograms) of ordnance, including free-fall bombs, precision-guided bombs, thermonuclear bombs and cruise missiles, naval mines and anti-ship missiles.
The bomber’s cruise speed is 520 miles per hour (837 kilometers per hour) and its maximum speed is 650 miles per hour (1,046 kilometers per hour) at 23,800 feet (7,254 meters) at a combat weight of 306,350 pounds. Its service ceiling is 47,700 feet (14,539 meters) at the same combat weight. The unrefueled range is 8,000 miles (12,875 kilometers).
With inflight refueling, the Stratofortress’s range is limited only by the endurance of its five-man crew.
The B-52H is the only version still in service. 102 were built and as of 27 September 2016, 76 are still in service. Beginning in 2013, the Air Force began a fleet-wide technological upgrade for the B-52H, including a digital avionics and communications system, as well as an internal weapons bay upgrade. The bomber is expected to remain in service until 2040.
The record-setting B-52, 60-0040, named The Black Widow, had been on a 7-hour training flight with an eight-man crew, 5–6 December 1988. They were practicing “touch and go” landings and takeoffs at K.I. Sawyer Air Force Base, near Marquette, Michigan.
After the third landing, the bomber just became airborne, when at 0115 EST,
“. . . At about 75 ft airborne the #30 fuel boost pump overheated due to lack of fuel to cool it down, and, because, the spark arrester was missing from the shaft of the boost pump allowing sparks into the empty tank. The fumes then combusted and exploded inflight causing the tail section to separate from the fuselage. We went crashing to the ground over the runway. Upon hitting the ground the wing section separated from the cockpit. Both went skidding down the runway and came to rest just 3400 ft from impact. The cockpit was blocking the alert ramp for the tankers. All 8 crewmembers survived, each with varying degrees of injury. The Pilot, copilot and IP sustained the more serious injuries, while the rest of us had multiple broken bones and burns but nothing terribly serious.”
— Captain Anthony D. Phillips, Radar Navigator.
Colonel Clyde P. Evely retired from the Air Force after thirty years service. He died 7 April 2010 at 88 years of age.
The remains of B-52H-150-BW 60-0040, The Black Widow, at K.I. Sawyer AFB, Gwinn, Michigan, 6 December 1988. (U.S. Air Force)
Lieutenant Colonel James Howell Howard, United States Army Air Corps, with his North American Aviation P-51B-5-NA Mustang, 43-6315, “DING HAO!” at RAF Boxted, 25 April 1944. (American Air Museum in Britain)
11 January 1944: Major James Howell Howard, Air Corps, United States Army, commander of the 356th Fighter Squadron, 354th Fighter Group, Ninth Air Force, led fifty P-51 Mustangs escorting three divisions of B-17 Flying Fortresses on a raid against Oschersleben, near Berlin, Germany.
As defending Luftwaffe fighters attacked the bomber formation, Major Howard immediately went on the offensive and shot down a twin engine Messerschmitt Bf 110 Zerstörer long range fighter. During this engagement, Howard became separated from his group, but climbed back to rejoin the bombers.
More than thirty German fighters were attacking the bomber formation and Major Howard single-handedly went after them. He shot down two, probably shot down two more and damaged at least another two. He continued to attack even after he had run out of ammunition and was low on fuel. When he returned to his base at RAF Boxted, his Mustang had just a single bullet hole.
For this action, James H. Howard was awarded the Medal of Honor, presented by Lieutenant General Carl Spaatz 11 January 1945. He is the only fighter pilot in the European Theater to have received this Medal. Howard was promoted to the rank of colonel.
Lieutenant Colonel James H. Howard adds another victory mark to his North American Aviation P-51B-5-NA Mustang, 43-6315, DING HAO! (U.S. Air Force)
The President of the United States in the name of The Congress takes pleasure in presenting the Medal of Honor to
HOWARD, JAMES H. (Air Mission)
Rank and organization: Lieutenant Colonel, U.S. Army Air Corps. Place and date: Over Oschersleben, Germany, 11 January 1944. Entered service at: St. Louis, Missouri. Birth: Canton, China. G.O. No.: 45, 5 June 1944.
Citation: For conspicuous gallantry and intrepidity above and beyond the call of duty in action with the enemy near Oschersleben, Germany, on 11 January 1944. On that day Col. Howard was the leader of a group of P-51 aircraft providing support for a heavy bomber formation on a long-range mission deep in enemy territory. As Col. Howard’s group met the bombers in the target area the bomber force was attacked by numerous enemy fighters. Col. Howard, with his group, and at once engaged the enemy and himself destroyed a German ME. 110. As a result of this attack Col. Howard lost contact with his group, and at once returned to the level of the bomber formation. He then saw that the bombers were being heavily attacked by enemy planes and that no other friendly fighters were at hand. While Col. Howard could have waited to attempt to assemble his group before engaging the enemy, he chose instead to attack singlehanded a formation of more than 30 German airplanes. With utter disregard for his own safety he immediately pressed home determined attacks for some thirty minutes, during which time he destroyed 3 enemy airplanes and probably destroyed and damaged others. Toward the end of this engagement 3 of his guns went out of action and his fuel supply was becoming dangerously low. Despite these handicaps and the almost insuperable odds against him, Col. Howard continued his aggressive action in an attempt to protect the bombers from the numerous fighters. His skill, courage, and intrepidity on this occasion set an example of heroism which will be an inspiration to the U.S. Armed Forces.
Lieutenant Colonel James Howell Howard, United States Army Air Forces, wearing the Medal of Honor, June 1944. (American Air Museum in Britain)Major James H. Howard, center, with a group of pilots of the 354th Fighter Group, with a North American Aviation P-51 Mustang, at RAF Boxted, 1943. (American Air Museum in Britain)
James Howell Howard was born 8 April 1913 at Canton (Guangzhou), China. He was the second of three children of Dr. Harvey James Howard, an ophthalmologist at the University Medical School in Canton China (formerly, the Canton Christian College), and later, chief of the Department of Ophthalmology at the Peking Union Medical College Hospital in Beijing. His mother was the former Maude Irene Strobel.
When James was 11 years old, he and his father were kidnapped by Manchurian bandits and held for ten weeks before they were able to escape. The family left Shaghai aboard the 535-foot Pacific Mail cargo liner S.S. President Lincoln on 21 July 1923 and sailed for San Francisco, California, arriving there on 8 August 1923.
Ensign James H. Howard USNR, with VF-6 Grumman F3F 6-F-12.
Howard attended The Haverford School, Montgomery, Pennsylvania, and later, John Burroughs School, St. Louis, Missouri. He graduated from Pomona College in southern California in 1937 with a Bachelor of Arts degree.
He had blond hair and blue eyes, was 6 feet, 2 inches (1.88 meters) tall and weighed 160 pounds (72.6 kilograms). He enlisted as an aviation cadet in the United States Naval Reserve, and began flight training at NAS Pensacola, Florida, 29 December 1937. He graduated as a Naval Aviator, 1 February 1939, and was commissioned an ensign, USNR.
In 1939, Ensign Howard served with Fighting Squadron SIX (VF-6) aboard USS Enterprise (CV-6) In 1940, he was assigned to the Naval Air Station San Diego San Diego on the southern coast of California.
On 21 June 1941, Ensign Howard resigned from the Navy and went to Burma as an employee of the Central Aircraft Manufacturing Company, which was a cover operation for the 1st American Volunteer Group, better known as the “Flying Tigers.” He commanded the AVG 2nd Pursuit Squadron. Flying the Curtiss-Wright Hawk 81-A3, Howard was credited with six Imperial Japanese Army Nakajima Ki-27 Army Type 97 fighters destroyed.
Five AVG pilots with a Curtiss-Wright Hawk 81-A3. James Howell Howard is at right, wearing an overseas cap with USN insignia.
Howard was commissioned as a captain, United States Army Air Corps, 31 January 1943, and assigned to the 354th Fighter Group. The group deployed overseas. Then Major Howard commanded the 356th Fighter Squadron at RAF Boxted. Major Howard was promoted to lieutenant colonel, February 1944, and to Colonel, 25 November 1945. As World War II came to an end, he was released from active duty, 30 November 1945.
Following the war, Colonel Howard remained active in the Army Air Forces reserve. In 1947, he was transferred to the newly established United States Air Force Reserve. He was promoted to the rank of brigadier general, 22 March 1948. He commanded thhe 96th Bomb Wing.
Brigadier General James Howell Howard, United States Air Force Reserve.
On 18 July 1948, General Howard married Lieutenant Mary G. Balles, Women’s Army Corps, at Smoky Hill Air Force Base, Salina, Kansas. Lieutenant Balles was a personnel officer with the 52nd Fighter Wing at Mitchel Field, New York. They divorced six months later.
Howard later married the former Mrs. Florence Ochs Buteau, 31 December 1953 at Brooksville, Maryland..
In addition to the medal of Honor, General Howard was also awarded the Distinguished Flying Cross, the Bronze Star Medal with oak leaf cluster (two awards), and ten Air Medals.
Brigadier General Howard retired from the U.S. Air Force 1 June 1965.
He was the author of Roar of the Tiger (Orion Books, New York, 1991).
Brigadier General James Howell Howard, United States Air Force (Retired), died at the Veterans Affairs Medical Center, Bay Pines, Florida, 18 March 1995. He was buried at the Arlington National Cemetery, Arlington, Virginia.
North American Aviation P-51B-5-NA Mustang, 43-6315, AJ A, 356th Fighter Squadron, 354th Fighter Group, Ninth Air Force, at RAF Boxted, 1944. (American Air Museum in Britain)
James Howard’s P-51 Mustang was named DING HAO! and carried the victory marks from his AVG combat missions.¹ [“Ding Hao” was an American World War II slang term based on the Chinese phrase, 挺好的 (“ting hao de“) meaning “very good” or “number one”.]
The North American Aviation P-51 Mustang is a single-place, single-engine long range fighter. It is a low-wing monoplane with retractable landing gear and is of all-metal construction. The fighter is powered by a liquid-cooled V-12 engine. It was originally produced for the United Kingdom’s Royal Air Force as the Mustang Mk.I. Two examples were provided to the U.S. Army Air Corps, designated XP-51. This resulted in orders for the P-51A and A-36 Apache dive bomber variant. These early Mustangs were powered by the Allison V-1750 engine driving a three-bladed propeller, which also powered the Lockheed P-38 Lightning and Curtiss P-40 Warhawk.
In 1942, soon after the first production Mustang Mk.I arrived in England, Rolls-Royce began experimenting with a borrowed airplane, AM121, in which they installed the Supermarine Spitfire’s Merlin 61 engine. This resulted in an airplane of superior performance.
In the United States, the Packard Motor Car Company of Detroit, Michigan, had begun building Merlin engines under license from Rolls-Royce. These American engines were designated V-1650. North American modified two P-51s from the production line to install the Packard V-1650-3. These were designated XP-51B. Testing revealed that the new variant was so good that the Army Air Corps limited its order for P-51As to 310 airplanes and production was changed to the P-51B.
North American Aviation P-51B Mustang with identification stripes. (U.S. Air Force)
The P-51B and P-51C are virtually Identical. The P-51Bs were built by North American Aviation, Inc., at Inglewood, California. P-51Cs were built at North American’s Dallas, Texas. plant. They were 32 feet, 2.97 inches (9.829 meters) long, with a wingspan of 37 feet, 0.31-inch (11.282 meters) and overall height of 13 feet, 8 inches (4.167 meters) high. The fighter had an empty weight of 6,985 pounds (3,168 kilograms) and a maximum gross weight of 11,800 pounds (5,352 kilograms).
P-51Bs and Cs were powered by a right-hand tractor, liquid-cooled, supercharged, 1,649-cubic-inch-displacement (27.04-liter) Packard V-1650-3 or -7 Merlin single overhead cam (SOHC) 60° V-12 engine which produced 1,380 horsepower at Sea Level, turning 3,000 r.p.m at 60 inches of manifold pressure (V-1650-3) or 1,490 horsepower at Sea Level, turning 3,000 r.p.m. at 61 inches of manifold pressure (V-1650-7). (Military Power rating, 15 minute limit.) These were license-built versions of the Rolls-Royce Merlin 63 and 66. The engine drove a four-bladed Hamilton Standard Hydromatic constant-speed propeller with a diameter of 11 feet, 2 inches (3.404 meters) through a 0.479:1 gear reduction.
The P-51B/C had a cruise speed of 362 miles per hour (583 kilometers per hour) and the maximum speed was 439 miles per hour (707 kilometers per hour) at 25,000 feet (7,620 meters). The service ceiling was 41,900 feet (12,771 meters). With internal fuel, the combat range was 755 miles (1,215 kilometers).
In military service, armament consisted of four air-cooled Browning AN-M2 .50-caliber machine guns, mounted two in each wing, with 350 rounds per gun for the inboard guns and 280 rounds per gun for the outboard.
1,988 P-51B Mustangs were built at North American’s Inglewood, California plant and another 1,750 P-51Cs were produced at Dallas, Texas. This was nearly 23% of the total P-51 production.
DING HAO!, James H. Howard’s P-51B Mustang, was lost in combat 23 July 1944.
Lieutenant Colonel James H. Howard, U.S. Army Air Corps, with DING HAO!, his P-51B Mustang, at RAF Boxted, 1944. At the time of this photo, the Mustang had been modified with a sliding, blown-plexiglas “Malcom hood” canopy. (U.S. Air Force)
¹ Major Howard may have flown a different airplane on 11 January 1944. A handwritten caption of the reverse of the top photograph reads, “Howard in own P-51B at Boxted, 25/4/44 not AC in which he won MOH, lt Col James Howard was awarded only Medal of Honour (highest US Award) to go to a fighter pilot flying in the ETO. Action on 11/1/44.“
11 January 1938: Pan American Airways’ Sikorsky S-42B NC16734, Samoan Clipper, took off from Pago Pago, American Samoa, enroute Auckland, New Zealand. The airplane had a crew of seven, commanded by Captain Edwin C. Musick, the airline’s senior pilot, and a cargo of mail.
About two hours out, the number four engine began leaking oil. Captain Musick ordered the engine shut down. The flight radioed that they were returning to Pago Pago. They never arrived. Wreckage, a large oil slick, various documents and articles of the crew’s clothing were found by the U.S. Navy seaplane tender USS Avocet (AVP-4), 14 miles (22.5 kilometers) west of the island. It was apparent that the S-42 had exploded in mid-air.
The cause of the explosion is not known with certainty but based on Captain Musick’s handling of a similar problem with one of Samoan Clipper‘s engines on an earlier flight, a possible cause can be suggested.
Pan American Airways’ Samoan Clipper. (Hawaii Aviation)
On the earlier flight, the number four engine had begun seriously overheating and Musick ordered the flight engineer to shut it down. Because of the decreased power with only three engines, Captain Musick ordered the crew to begin dumping fuel to decrease the weight of the airplane before landing.
Pan American had tested the fuel dumping characteristics of the Sikorsky S-42 using dye, and had learned that because of the air flow patterns around the wings, the fluid tended to accumulate around the trailing edge of the wings and that it could actually be sucked into the wings themselves.
As fuel was being dumped on the previous flight, fuel vapors were present in the cabin, requiring all electrical systems to be shut off—even though it was night. Liquid gasoline was also dripping into the cockpit from the wing above.
Pan American Airways’ Sikorsky S-42B NC16734 at Pago Pago, 24 December 1937. (Unattributed)
Samoan Clipper had been very heavy with fuel when it departed for the long transoceanic flight to Auckland. Presuming that Captain Musick once again ordered fuel to be dumped prior to landing back at Pago Pago, and that the vapors collected around the wings, the fuel could have been detonated by the electrical motors which were used to lower the flaps for flight at slower speed, or by coming into contact with the hot exhaust of the engines.
Two independent investigations were carried out by Pan American and by the United States Navy, and both came to this conclusion.
Captain Edwin Charles Musick, Chief Pilot, Pan American Airways. (1894–1938)
There were no survivors of the explosion. Killed along with Captain Musick were Captain Cecil G. Sellers, Second Officer P.S. Brunk, Navigator F.J. MacLean, Flight Engineer J.W. Stickrod, Flight Mechanic J.A. Brooks and Radio Operator T.D. Findley.
The Sikorsky S-42B was a four-engine long-range flying boat built for Pan American Airways by the Vought-Sikorsky Aircraft Division of United Technologies at Stratford, Connecticut. It was 68 feet (20.726 meters) long with a wingspan of 118 feet, 2 inches (36.017 meters). The S-42 had an empty weight of 19,764 pounds ( kilograms) and gross weight of 38,000 pounds ( kilograms). It could carry up to 37 passengers.
The S-42B was powered by four air-cooled, supercharged, 1,690.537-cubic-inch-displacement (27.703 liters) Pratt & Whitney Hornet S1E-G nine-cylinder radial engines with a compression ratio of 6.5:1. The S1E-G had a Normal Power rating of 750 horsepower at 2,250 r.p.m., to 7,000 feet (2,134 meters), and 875 horsepower at 2,300 r.p.m., for Takeoff. The engines drove three-bladed Hamilton Standard constant-speed propellers through a 3:2 gear reduction. The S1E-G was 4 feet, 1.38 inches (1.254 meters) long, 4 feet, 6.44 inches (1.383 meters) in diameter, and weighed 1,064 pounds (483 kilograms).
The S-42B has a cruise speed 165 miles per hour (266 kilometers per hour) and maximum speed of 188 miles per hour (303 kilometers per hour) at 5,000 feet (1,524 meters). The service ceiling was 16,000 feet (4,877 meters), and it could maintain 7,500 feet (2,286 meters) with three engines. Its range was 1,930 miles (3,106 kilometers).
Boris Vasilievich Sergievsky. (Test & Research Pilots, Flight Test Engineers)
During flight testing of the S-42, Sikorsky test pilot Boris Vasilievich Sergievsky, with co-pilot Raymond B. Quick, set three Fédération Aéronautique Internationale world records for payload and altitude.¹ Later, Captain Musick, with Sergievsky and world-famous aviator Charles A. Lindbergh, flew the S-42 to set eight Fédération Aéronautique Internationale world records for speed.²
Ten Sikorsky S-42, S-42A and S-42B flying boats were built for Pan Am. None remain in existence.
Pan American Airways’ Sikorsky S-42B NC16734, Samoan Clipper, moored at Mechanic’s Bay, Auckland, New Zealand, December 1937. The flying boat in the background is a Short S.23 Empire, G-ADUT, named Centaurus. (Turnbull Library)
¹ 26 April 1934 FAI Record File Numbers: 11583: Greatest load to 2,000 meters (6,562 feet): 7,533 kilograms (16,652 pounds). 17 May 1934: 11582 and 11978: Altitude with a 5,000 Kilogram (11,023 pounds) Load, 6,220 meters (20,407 feet).
² 1 April 1934 FAI Record File Numbers: 11517: Speed over a closed circuit of 1,000 Kilometers (621.3 statute miles), 253,60 km/h (157.58 m.p.h.); 11518: . . . with a 500 Kilogram (1,102 pounds) Payload, 253,60 km/h (157.58 m.p.h.); 11519: . . . with a 1,000 Kilogram (2,205 pounds) Payload, 253,60 km/h (157.58 m.p.h.); 11520: . . . with a 2,000 kilogram (4,409 pounds) Payload, 253,60 km/h (157.58 m.p.h.); 11521: Speed over a closed circuit of 2,000 Kilometers (1,242.7 statute miles), 253,18 km/h (157.32 m.p.h); 11522: . . . with a 500 Kilogram Payload, 253,18 km/h (157.32 m.p.h.); 11523: . . . with a 1,000 Kilogram Payload, 253,18 km/h (157.32 m.p.h.); 11524: . . . with a 2,000 Kilogram Payload, 253,18 km/h (157.32 m.p.h.).