Category Archives: Aviation

29 December 1944

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Flight Lieutenant Richard Joseph Audet, Royal Canadian Air Force, with his Supermarine Spitfire LF Mk.IX, MK950, assigned to No. 411 Squadron, Royal Canadian Air Force.

29 December 1944: Flying Officer Richard Joseph Audet, Royal Canadian Air Force, was a section leader of No. 411 Squadron, an RCAF squadron under the control of the Second Tactical Air Force, Royal Air Force. The squadron was based at an advanced airfield in The Netherlands.

In the early afternoon, Audet’s Yellow Section engaged a flight of twelve Luftwaffe fighters, four Messerchmitt Bf 109s and eight Focke-Wulf Fw 190s, near Rheine, in northwestern Germany.

Flying a Supermarine Spitfire LF Mk.IX .5, RR201, Flying Officer Audet led his section into the attack. He later reported:

I was leading Yellow section of 411 Squadron in the Rheine/Osnabruck area when Control reported Huns at Rheine and the squadron turned in that direction. An Me 262 was sighted and just at that time I spotted 12 e/a on our starboard side at 2 o’clock. These turned out to be a mixture of approximately 4 Me 109’s and 8 FW 190’s.

1) I attacked an Me 109 which was the last a/c in the formation of about twelve all flying line astern. At approximately 200 yds and 30° to starboard at 10,000 feet I opened fire and saw strikes all over the fuselage and wing roots. The 109 burst into flames on the starboard side of the fuselage only, and trailed intense black smoke. I then broke off my attack.

2) After the first attack I went around in a defensive circle at about 8500 feet until I spotted an FW 190 which I immediately attacked from 250 yards down to 100 yards and from 30° to line astern. I saw strikes over cockpit and to the rear of the fuselage. It burst into flames from the engine back, and as I passed very close over top of it I saw the pilot slumped over in his cockpit, which was also in flames.

3) My third attack followed immediately on the 2nd. I followed what I believed was an Me 109 in a slight dive. He then climbed sharply and his coupe top flew off at about 3 to 4,000 feet. I then gave a very short burst from about 300 yards and line astern and his aircraft whipped downwards in a dive. The pilot attempted or did bale out. I saw a black object on the edge of the cockpit but his ‘chute ripped to shreds. I then took cine shots of his a/c going to the ground and bits of parachute floating around. I saw this aircraft hit and smash into many flaming pieces on the ground. I do not remember any strikes on this aircraft. The Browning button only may have been pressed.

4) I spotted a FW 190 being pursued at about 5,000′ by a Spitfire which was in turn pursued by an FW 190. I called this Yellow section pilot to break and attacked the 190 up his rear. The fight went downwards in a steep dive. When I was about 250 yards and line astern of this 190 I opened fire. There were many strikes on the length of the fuselage and it immediately burst into flames. I saw this FW 190 go straight into the ground and burn.

5) Several minutes later while attempting to form my section up again I spotted an FW 190 from 4000 feet. He was at about 2000 feet. I dived down on him and he turned in to me from the right. Then he flipped around in a left hand turn and attempted a head-on attack. I slowed down to wait for the 190 to flypast in range. At about 200 yds and 20° I gave a very short burst, but couldn’t see any strikes. This a/c flicked violently, and continued to do so until he crashed into the ground. The remainder of my section saw this encounter and Yellow 4 (F/O McCracken) saw it crash in flames.

—Post Mission Report of Flying Officer R. J. Audet, 29 December 1944

This air battle had been Flying Officer Audet’s first engagement with enemy aircraft. It was over within a matter of minutes. For his actions of 29 December 1944, Richard Audet was awarded the Distinguished Flying Cross.

Air Ministry, 16th February, 1945.

The KING has been graciously pleased to approve the following awards in recognition of gallantry and devotion to duty in the execution of air operations:—

Distinguished Flying Cross.

Flying Officer Richard Joseph Audet (Can/J.20136), R.C.A.F., 411 (R.C.A.F.) Sqn.

This officer has proved himself to be a highly skilled and courageous fighter. In December, 1944, the squadron was involved in an engagement against 12 enemy fighters in the Rheine/Osnabrück area. In a most spirited action, Flying Officer Audet achieved outstanding success by destroying 5 enemy aircraft. This feat is a splendid tribute to his brilliant shooting, great gallantry and tenacity.

Flight Lieutenant Richard Joseph Audet in the cockpit of a Supermarine Spitfire. (RCAF)

Richard Joseph Audet was born 13 March 1922 at Lethbridge, Alberta, Canada. He was the sixth child of Paul Audet, a rancher, and Ediwisca Marcoux Audet. “Dickie” Audet rode a horse to school at the age of ten years, traveling about 18 miles (29 kilometers) every morning.

Audet studied at Garbutt Business College in Lethbridge, and worked as a stenographer and bookkeeper at RCAF Air Station High River.

Dick Audet enlisted in the Royal Canadian Air Force at Calgary, Alberta, 28 August 1941. He was trained as a fighter pilot and was commissioned as a Pilot Officer, 24 October 1942. His pilot’s wings were presented to him by The Right Honourable William Lyon MacKenzie King, tenth Prime Minister of the Dominion of Canada.

R.C.A.F. Form R. 100, enlistment document of Richard Joseph Audet. (Royal Canadian Air Force)

Pilot Officer Audet was sent to England, crossing the North Atlantic aboard ship and arriving 6 December 1942. He was assigned to the No. 6 Elementary Flying School at RAF Little Rissington, Gloucestershire, and then No. 17 Advanced Flying Unit at RAF Calvely, Nantwich, Cheshire. He was promoted to Flying Officer 23 April 1943, and transferred to No. 53 Operational Training Unit at RAF Heston, west of London, where he transitioned to the Supermarine Spitfire fighter.

Flying Officer Richard J. Audet married Miss Iris Christina Gibbons of Pinner, a village in the London Borough of Harrow, at Northhampton, Northamptonshire, England, 9 July 1944.

Audet joined No. 411 Squadron, Royal Canadian Air Force, 14 September 1944. He was promoted to the rank of Flight Lieutenant, 23 October 1944.

During January 1945, Flight Lieutenant Audet was credited with destroying another 6.5 enemy aircraft: 4.5 Focke-Wulf FW-190s (one shared) and two Messerschmitt Me 262 jet fighters (one on the ground), and a third Me 262, damaged.

Distinguished Flying Cross and Bar

On 3 March 1945, Flight Lieutenant Audet was strafing railway trains near Coesfeld, Coesfelder Landkreis, Nordrhein-Westfalen, Germany, when his Spitfire LF Mk.IXE, MK950, was shot down. The Spitfire was seen to crash in flames and explode. Audet was listed as missing in action, and was presumed to have been killed. His remains were not recovered.

On 9 March 1945, Flight Lieutenant Richard Joseph Audet was posthumously awarded a Bar to his Distinguished Flying Cross (a second award).

There is no grave for Dick Audet. His name appears with those of 20,287 others on the Runnymede Memorial, Surrey, England, and among the nearly 400 on the Lethbridge Cenotaph at Lethbridge, Alberta. Audet Lake, north of Fort McMurray, Alberta, and Rue Richard Joseph Audet in Saugenay, Quebec, were named in his honor.

A Supermarine Spitfire LF Mk.IX .5 of No. 412 Squadron, RCAF, taxiing at an advanced landing field, Volkel, Holland, 27 October 1944. This is the same type Spitfire as flown by Dick Audet. Note the position of the .50-caliber machine guns, just inboard of the 20 mm cannon. Photograph by Flight Lieutenant T. Lea, RAF. © IWM (CL 1451)

The aircraft flown by Dick Audet on 29 December 1944, was a Supermarine Spitfire LF Mk.IX .5 (redesignated LF Mk.IXe in 1945), Royal Air Force serial number RR201. The identification letters on the fuselage were DB-G. It was built at built at the Castle Bromwich Aircraft Factory, at Warwickshire, West Midlands, in late summer or early fall 1944.

The Supermarine Spitfire was a single-place, single-engine low-wing monoplane of all-metal construction with retractable landing gear. The fighter had been designed by Reginald Joseph Mitchell CBE. The prototype first flew 5 March 1936.

The Spitfire LF Mk.IXe was optimized for low-altitude operations. The Spitfire F Mk.Vb was 29 feet, 11 inches (9.119 meters) long with a wingspan of 36 feet, 10 inches (11.227 meters) and overall height of 11 feet, 5 inches (3.480 meters). The exact dimensions of the LF Mk.IXe are not known but are presumably similar. Some Mk.IXe fighters had “clipped” wings, while others did not.

The LF Mk.IXe had an empty weight of 5,749 pounds (2,608 kilograms) and gross weight of 7,450 pounds (3,379 kilograms).

The Spitfire LF Mk.IXe was powered a liquid-cooled, supercharged, 1,648.959-cubic-inch-displacement (27.022 liters) Rolls-Royce Merlin 66 single overhead camshaft (SOHC) 60° V-12 engine with a compression ratio of 6.00:1. It was equipped with a two-speed, two-stage supercharger. The Merlin 66 was rated at 1,315 horsepower at 3,000 r.p.m. and 12 pounds per square inch boost (0.83 Bar), for Take Off; 1,705 horsepower at 3,000 r.p.m. at 5,750 feet (1,753 meters) and 1,580 horsepower at 3,000 r.p.m. at 16,000 feet (4,877 meters), with 18 pounds boost (1.24 Bar). These power ratings were obtained with 130-octane aviation gasoline. When 150-octane gasoline became available, the Merlin 66 was cleared to use 25 pounds of boost (1.72 Bar). The Merlin 66 had a propeller gear reduction ratio of 0.477:1 and drove a four-bladed Rotol Hydulignum (compressed laminated wood) propeller with a diameter of 10 feet, 9 inches (3.277 meters). The engine weighed 1,645 pounds (746 kilograms).

The Spitfire LF Mk.IXe had  cruise speed of 220 miles per hour (354 kilometers per hour) at 20,000 feet (6,096 meters); a maximum speed of 384 miles per hour (618 kilometers per hour) at 10,500 feet (3,200 meters), and 404 miles per hour (650 kilometers per hour) at 21,000 feet (6,401 meters). Diving speed was restricted to 450 miles per hour (724 kilometers per hour) below 20,000 feet (6,096 meters). The airplane’s service ceiling was 42,500 feet (12,954 meters).

The Spitfire LF Mk.IXe was armed with two 20-milimeter Hispano Mk.II autocannon, with 135 rounds of ammunition per gun, and two Browning AN-M2 .50-caliber machine guns, with 260 rounds per gun. The .50-caliber machine guns were mounted in the wings, just inboard of the 20 mm cannon.

This photograph of a Supermarine Spitfire LF Mk.IXe shows the position of the .50-caliber machine guns, inboard of the 20 mm cannon.

© 2018, Bryan R. Swopes

29 December 1941

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North American Aviation XP-51 Mustang 41-038 at Langley Field, Virginia, 29 December 1941. (NASA)

29 December 1941: The first North American Aviation XP-51 fighter prototype, Air Corps serial number 41-038, arrived at the National Advisory Committee for Aeronautics Langley Memorial Aeronautical Laboratory, Langley Field, Hampton, Virginia, for flight testing. This airplane was the fourth production Royal Air Force Mustang Mk.I, North American serial number 73-3101.

The test program resulted in an improved aileron design which significantly improved the Mustang’s maneuverability. The new aileron was used on all production models.

North American Aviation XP-51 41-038 at the NACA Langley Memorial Aeronautical Laboratory. (NASA)

41-038 was returned to Wright Field on 2 November 1942. The second XP-51, 41-039, arrived at Langley in March 1943 for continued testing.

The Mustang Mk.I (NAA Model NA-73) was a single-place, single-engine fighter of all metal construction. It was 32 feet, 3 inches (9.830 meters) long with a wingspan of 37 feet, ½-inch (11.290 meters) and overall height of 12 feet, 2½ inches (3.719 meters). The airplane’s empty weight was 6,280 pounds (25,848.6 kilograms) and loaded weight was 8,400 pounds (3,810.2 kilograms).

North American Aviation XP-51 41-038 at NACA Langley Memorial Aeronautical Laboratory, right profile. (NASA)

The Mustang Mk.I/XP-51 was powered by a liquid-cooled, supercharged 1,710.60-cubic-inch-displacement (28.032 liter) Allison Engineering Company V-1710-F3R (V-1710-39) single overhead cam 60° V-12 engine, with a compression ratio of 6.65:1 and a single-stage, single-speed supercharger. This was a right-hand tractor engine (the V-1710 was built in both right-hand and left-hand configurations) which drove a 10 foot, 6 inch (3.200 meter) diameter, three-bladed, Curtiss Electric constant-speed propeller through a 2.00:1 gear reduction.

The V-1710-39 had a Normal Power rating of 880 horsepower at 2,600 r.p.m. at Sea Level; Take Off Power rating of 1,150 horsepower at 3,000 r.p.m. at Sea Level, with 44.5 inches of manifold pressure (1.51 Bar), 5 minute limit; and a War Emergency Power rating of 1,490 horsepower at 3,000 r.p.m., with 56 inches of manifold pressure (1.90 Bar). The V-1710-F3R was 3 feet, ¾ inches (0.934 meters) high, 2 feet, 5-9/32 inches (0.744 meters) wide and 7 feet, 1-5/8 inches (2.175 meters) long. It had a dry weight of 1,310 pounds (594 kilograms).

North American Aviation XP-51 41-038 at NACA Langley Memorial Aeronautical Laboratory. (NASA)

The XP-51 tested at Wright Field had a maximum speed of 382.0 miles per hour (614.8 kilometers per hour) at 13,000 feet (3,962 meters) at wide open throttle, and cruise speed of 300 miles per hour (483 kilometers per hour).

Below 20,000 feet (6,096 meters), the Mustang was the fastest fighter in the world. The Mk.I was 30 m.p.h. (48 kilometers per hour) faster than its contemporary, the Curtiss P-40 Warhawk, though both used exactly the same engine. Below 15,000 feet (4,572 meters), the Mustang was also 30–35 m.p.h (48–56 km/h) faster than a Supermarine Spitfire, which was equipped with the more powerful Roll-Royce Merlin V-12.

The service ceiling was 30,800 feet (9,388 meters) and range was 750 miles (1,207 kilometers).

North American Aviation XP-51 41-038 at NACA Langley Memorial Aeronautical Laboratory, rear view. (NASA)

Armament consisted of two synchronized Browning AN-M2 .50-caliber machine guns mounted in the nose under the engine and firing through the propeller, and two more .50-caliber and four Browning .303 Mk.II machine guns in the wings.

North American Aviation XP-51 instrument panel. (U.S. Air Force)

Two Mustang Mk.Is, AG348 and AG354, were taken from the first RAF production order and sent to Wright Field for testing by the U.S. Army Air Corps. These airplanes, assigned Air Corps serial numbers 41-038 and 41-039, were designated XP-51. They would be developed into the legendary P-51 Mustang. In production from 1941 to 1945, a total of 16,766 Mustangs of all variants were built.

North American XP-51 41-038 was transferred to the Smithsonian Institution National Air and Space Museum. It was restored in 1976. It is now in the collection of the EAA AirVenture Museum, Oshkosh, Wisconsin. It has a current FAA registration number, N51NA.

North American Aviation XP-51 41-038 in the collection of the Experimental Aircraft Association AirVenture Museum, Oshkosh, Wisconsin. (EAA AirVenture Museum)
North American Aviation XP-51 41-038 in the collection of the Experimental Aircraft Association AirVenture Museum, Oshkosh, Wisconsin. (EAA AirVenture Museum)

© 2018, Bryan R. Swopes

29 December 1939

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The prototype Consolidated XB-24 heavy bomber takes off from Lindbergh Field.

29 December 1939: Consolidated Aircraft Corporation’s chief test pilot, William B. (“Bill”) Wheatley, made the first flight of the XB-24, 39-556, from San Diego Municipal Airport – Lindbergh Field, at San Diego, California. The flight crew included George Newman, co-pilot, and flight engineers Jack Kline and Bob Keith. The flight lasted just 17 minutes.

This airplane (the company designation was Model 32) was the prototype of the B-24 Liberator bomber. The U.S. Army Air Corps had approached Consolidated to set up a second production line for Boeing’s B-17 Flying Fortress four-engine heavy bomber. After looking at Boeing’s Seattle operation, Consolidated’s chief executive, Reuben H. Fleet, told the Air Corps that they could build a better, more modern bomber.

Consolidated XB-24 39-556.  (San Diego Air & Space Museum)

The XB-24 was designed to be operated by a seven man crew. It was 63 feet, 9 inches (19.431 meters) long with a wingspan of 110 feet, 0 inches (33.528 meters), and was 18 feet, 8 inches (5.689 meters) high. The wings used the “Davis Airfoil” that had been used on the Model 31, a prototype flying boat, the XP4Y. The root chord was 14 feet, 0 inches (4.267 meters). Their angle of incidence was 3° 0′, with 3° 26° dihedral. The leading edges were swept aft 3° 30′.  The total wing area was 1,048 square feet (97.36 square meters).

Consolidated XB-24 39-556. (San Diego Air & Space Museum)

The empty weight of the XB-24 was approximately 27,500 pounds ( kilograms), and its maximum takeoff weight was 46,400 pounds (21,047 kilograms).

Consolidated XB-24 39-556, 26 December 1939. (San Diego Air & Space Museum)

The XB-24 was powered by four air-cooled, supercharged 1,829.4-cubic-inch-displacement (29.978 liter) Pratt & Whitney Twin Wasp S3C4-G (R-1830-33) two-row fourteen-cylinder radial engines. These had a normal power rating of 1,100 horsepower at 2,550 r.p.m. to 6,100 feet (1,859 meters) and 1,000 horsepower at 2,700 r.p.m at 14,500 feet. The takeoff/military power rating was 1,200 horsepower at 2,700 r.p.m. to 5,000 feet (1,524 meters). The engines drove three-bladed Curtiss Electric variable-pitch propellers through a 2:1 gear reduction. The R-1830-33 was 4 feet, 0.06 inches (1.221 meters) in diameter and 5 feet, 3.48 inches (1.612 meters) long. It weighed 1,480 pounds (671 kilograms).

Consolidated XB-24 low pass.

The XB-24  had cruise speed of 186 miles per hour (299 kilometers per hour), and a maximum speed of 273 miles per hour (439 kilometers per hour) at 15,000 feet (4,572 meters). The service ceiling was 31,500 feet (9,601 meters). Maximum range was 4,700 miles (4,828 kilometers), or 3,000 miles (7,564 kilometers) with 2,500 pounds (1,134 kilograms) of bombs.

The XB-24 was 38 miles per hour (61 kilometers per hour) slower than the Air Corps specification. A number of changes were made, including replacing the supercharged R-1830-33 engines with turbocharged Pratt & Whitney Twin Wasp TSC4-G (R-1830-41) engines. With the addition of the turbochargers, the R-1830-41s were able to maintain 1,200 horsepower up to 25,000 feet (7,620 meters). The propeller gear reduction ratio remained 2:1. At the same time, the round engine cowlings were changed to an elliptical shape that became a characteristic of the B-24. The modified prototype was redesignated XB-24B. In the new configuration, the bomber was able to reach 310 miles per hour (499 kilometers per hour), just 1 mile per hour under the Army’s requirement.

Consolidated XB-24 39-556 in flight near San Diego, California. (U.S. Air Force)

When the Royal Air Force bought several of the YB-24 pre-production airplanes, the Army Air Corps revised the serial numbers assigned to the B-24s. Though it was the same airplane, the XB-24′s designation was changed to XB-24B, and its serial number from 39-556 to 39-680.

The XB-24B was retained by Consolidated, now the Consolidated-Vultee Aircraft Corporation, and in 1944 further modified as a company transport. The prototype was scrapped at Brookley Field, Mobile, Alabama, 20 June 1946.

Consolidated-Vultee XB-24B 39-680 (formerly XB-24 39-556) after modification to a company transport. The large windows in the passenger areas could be covered by Venetian blinds. Photographed 23 April 1945. (San Diego Air & Space Museum)

18,482 B-24 Liberators—more than any other Allied aircraft type—were built during World War II by Consolidated at San Diego, California and Fort Worth, Texas; by North American Aviation at Dallas, Texas; by Douglas Aircraft at Tulsa, Oklahoma. More than half of the total production was built by the Ford Motor Company at Willow Run. During World War II, the B-24 served in every combat theater. In U.S. Navy service, it was designated PB4Y-1 Privateer. It was faster, had a longer range, and could carry a heavier bomb load than the Boeing B-17, but was thought to be less survivable to combat damage. As the war came to an end, hundreds of brand new B-24s were accepted by the Air Corps, but sent immediately to be scrapped rather than placed in service.

William Ballentine Wheatley, (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)

William Ballantine Wheatley was born at Chester, New York, 17 December 1902, the first of three children of William A. Wheatley, a public school superintendent, and Mabel Ballantine Wheatley. He was twice married, first, about 1927, to Esther Leary Wheatley, of Massachussetts. They had two children, Mary and William Thomas Wheatley. His second marriage was to Miss Grace Lenore Ray, 18 April 1935, at Washington, D.C. They would have a son, John, and two daughters, Grace and Charlotte Wheatley.

After two years of college, Wheatley joined the U.S. Army Air Corps as an aviation cadet, 3 March 1925. He trained as a pilot at Brooks Field, Texas, and was commissioned as a 2nd lieutenant, 13 March 1926. On 4 May 1927, Lieutenant Wheatley was assigned to the 118th Observation Squadron, 43rd Division, Air Service, at Hartford, Connecticut, as a pilot and observer. He served in the Air Corps Reserve until 1937.

In 1928, Wheatley went to work for the Pratt & Whitney Aircraft Company as a test pilot. He was an air mail pilot in 1928-1929, and then, in February 1929, he became a test pilot for Reuben H. Fleet’s Consolidated Aircraft Corporation at Buffalo, New York. In 1935, Consolidated moved to its new headquarters at Lindbergh Field, San Diego, California. Wheatley moved with it. He and his family lived in a 3 bedroom home about three miles northeast of the airport. In 1940, his salary as chief test pilot of Consolidated was $50,000 per year.¹

Bill Wheatley was killed when a Royal Air Force Liberator B Mk.II, AL503, crashed into San Diego Bay during its acceptance flight, 2 June 1941. Four other Consolidated employees on board also died.

Consolidated Model LB-30, Liberator B Mk.II, AL503, photographed 2 June 1941—the same day it crashed. (Consolidated Aircraft Corporation)

¹ Approximately equivalent to $1,083,439 U.S. dollars in 2023.

© 2018, Bryan R. Swopes

29 December 1935: Wind, Sand and Stars

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Saint Exupéry with André Prévot and their Caudron C.630 Simoun, F-ANRY, Aéroport de Paris – Le Bourget 29 December 1935.(Succession de Saint-Exupéry d’Agay via Le Musée de l’Air et de l’Espace)
Antoine de Saint Exupéry with André Prévot and their Caudron C.630 Simoun, F-ANRY, Aéroport de Paris – Le Bourget 29 December 1935. (Succession de Saint-Exupéry d’Agay via Le Musée de l’Air et de l’Espace)

29 December 1935: Early in the morning, Antoine Marie Jean-Baptiste Roger comte de Saint Exupéry took off from Aéroport de Paris–Le Bourget  enroute to Saïgon, Cochin-China, as a participant in the long distance Paris-to-Saïgon “raid,” or air race.

The race was sponsored by the Aéro-Club de France, which had offered a prize of ₣1,200,000 (franc français), approximately £16,000 or $70,000, to the winner, providing the finishing time was less than 90 hours. The distance was estimated at 13,800 miles (22,209 kilometers). Any airplane type could be entered in the race as long as it had an official airworthiness certificate and a flight crew of two, or a single pilot with an autopilot.

Antoine de Saint Exupéry was accompanied by André Prévot as the navigator and flight engineer. The airplane was a red and white Caudron C.630 Simoun, c/n 7042.20. It was registered to Saint Exupéry on  9 April 1935 as F-ANRY, a representation of his name (“ANtoine de Saint ExupéRY”). He had flown the Simoun 8,000 miles (12,875 kilometers) in the eight months he had owned it, “. . .and her engine had not skipped a beat; not a bolt in her had loosened.”

Saint Exupery's Caudron C.630 Simoun, F-ANRY, prepares to take off at Le Bourget. (Succession de Saint-Exupéry d’Agay via Le Musée de l’Air et de l’Espace)
Saint Exupery’s Caudron C.630 Simoun, F-ANRY, prepares to take off at Le Bourget. (Succession de Saint-Exupéry d’Agay via Le Musée de l’Air et de l’Espace)

The Société des Avions Caudron C.630 Simoun was a four-place, single-engine, low-wing monoplane with fixed landing gear. It was built of wood, with the surface of the wings and fuselage covered in plywood sheet then covered with doped fabric. Carefully curved aluminum sheet metal covered the top and bottom of the fuselage. The C.630 was 8,70 meters (28 feet, 6½ inches) long with a wingspan of 10,40 meters (34 feet, 1½ inches) and height of 2,25 meters (7 feet, 4½ inches). The airplane’s gross weight was 1,230 kilograms (2,712 pounds).

The engine was an air-cooled, normally-aspirated 9.500 liter (579.736 cubic-inch-displacement) Renault Bengali 6 Pdi inverted inline six-cylinder overhead-valve (OHV) engine with a compression ratio of 5.75:1. It was rated at 180 cheval vapeur (177.5 horsepower) at 2,200 r.p.m. The left-hand-tractor, direct-drive engine turned a two-bladed, metal Helices Ratier variable-pitch propeller. The propeller could be set to coarse pitch by a mechanic prior to takeoff, then an air bladder mechanism could change it to fine pitch for cruise flight. The Bengali 6Pdi weighed 205 kilograms (452 pounds).

The C.630 had a maximum speed of 310 kilometers per hour (193 miles per hour). The service ceiling was 7,500 meters (24,606 feet) and normal range was 1,260 kilometers (783 miles). Twenty C.630s were built before production changed to the slightly improved C.631.

Antoine de Saint Exupéry in the cockpit of his Caudron C.630 Simoun, F-ANRY, at Le Bourget, Paris, France. (Succession de Antoine Saint-Exupéry)

After taking off at Paris, Saint Exupéry followed the Seine to the valley of the Loire and continued south, crossing the southern coast of France near Marseilles. The fliers had been over the Mediterranean Sea for a short while when they saw fuel leaking from the left wing. Prévot calculated that they had lost 20 gallons (76 liters) of fuel. They turned back and landed at Marignane to repair the leak and refuel before continuing. Saint Exupéry wrote, “I drank a cup of coffee while the time lost hurt like an open wound.”

Once again heading across the Mediterranean toward Tunis, they encountered low clouds and heavy rain which forced them down to just 60 feet (18 meters) over the water. They flew along the coast of Sardinia as the weather improved.

F-ANRY crossed the coast of Africa at Bizerte, Tunisia, and about fifteen minutes later landed to refuel. With two hours of daylight remaining, Saint Exupéry and Prévot took off again, now heading toward Benghazi, Libya. They landed there at 11:00 p.m., local time, and in just twenty minutes the airplane had been refueled and once more, they were airborne.

Flying east after moonset, Saint Exupéry and Prévot were in total darkness. After three hours a faint glow of his navigation lights on the airplane’s wingtips told Saint Exupéry that he had flown into clouds, with visibility measured in just feet.

At a time when there were no navigation aids, pilots had to navigate by their compass, airspeed indicator and clock. Though Saint Exupéry had met with meteorologists to plan his flight, there was no way to update the weather information after takeoff. He had no way of knowing whether an expected tailwind had held, or if it had changed; was his speed across the ground faster or slower than planned? Had the wind blown him right or left of course? Had the atmospheric pressure changed, causing his altimeter to read higher or lower than the airplane actually was? Flying across the emptiness of the Sahara Desert with no landmarks, in total darkness and now just a few feet of visibility, he and Prévot could only guess at their position.

4 hours, 15 minutes after taking off from Benghazi, the C.630 crashed into gently rising terrain at 170 miles per hour (274 kilometers per hour).

The wreck of Antoine de Saint Exupéry’s Caudron C.630 Simoun, F-ANRY. (Bureau d’Archives des Accidents d’Avions)

The airplane had slid 250 yards across the surface of the plateau and was heavily damaged, but Saint Exupéry and Prévot were unhurt. However, their water was lost. They were left with “. . . a pint of coffee in a battered thermos flask and half a pint of white wine. . . There were some grapes, too, and a single orange.”

Without food or water, Antoine de Saint Exupéry and Andre Prévot wandered across the desert searching for help. They followed mirages, and frequently recrossed their own tracks. They always returned to the wreck of the Simoun. They experienced delusions.

After four days, they were rescued by Bedouin tribesmen.

Antoine de Saint Exupéry stands next to the wreck of his Caudron C.630 Simoun, F-ANRY. (Bureau d’Archives des Accidents d’Avions)

The location of the crash is uncertain, but is believed to be near Wadi el Natrûn in Egypt, west of the Nile Delta.

Saint Exupéry wrote about the experience in Wind, Sand and Stars, published in 1939. It was the basis for his famous novella, The Little Prince.

Antoine de Saint-Exupéry and the Little Prince Statue by Christiane Guillaumet, Place Bellecour in Lyon
Antoine de Saint-Exupéry and the Little Prince
Statue by Christiane Guillaumet, Place Bellecour in Lyon

TDiA’s Highest Recommendation: Wind, Sand and Stars, by Antoine de Saint-Exupéry, translated from the French by Lewis Galantière, Houghton Mifflin Harcourt Publishing Company, New York, New York 10016.

SAINT-EXUPERY, Antoine de. Wind, Sand and Stars. New York: Reynal & Hitchcock, (1939). Octavo, original half black cloth, pictorial endpapers, original dust jacket. (Bauman Rare Books)

© 2018, Bryan R. Swopes

28 December 1978

Aviation, , , , , , , ,
United Airlines’ McDonnell Douglas DC-8-61, N8082U, photographed at New York–JFK, 3 January 1978. (© Howard Chaloner. Image used with permission.)

28 December 1978: United Airlines Flight 173, A McDonnell Douglas DC-8, N8082U, departed Stapleton International Airport (DEN), Denver, Colorado, enroute to Portland International Airport (PDX), Portland, Oregon. Under the command of Captain Malburn Adair McBroom, the airliner carried 181 passengers and 8 crew members. The planned duration of the flight was 2 hours, 26 minutes. The DC-8 carried 46,700 pounds (21,183 kilograms) of jet fuel, sufficient for the flight plus an additional 1 hour, 5 minutes fuel for the required 45-minute reserve and any contingencies.

On approach to Portland, the crew lowered the DC-8’s landing gear and flaps. They felt a heavy thump followed by a vibration and the airplane yawing. The indicator light showing that the main gear was down and locked did not illuminate.

Concerned that there was a problem with the landing gear, Captain McBroom aborted the landing and put the airliner in a holding pattern south of the airport. For approximately one hour, Captain McBroom, First Officer Roderick Duane Beebe, and Flight Engineer Forrest Ervin Mendenhall attempted to determine the nature of the problem. Finally, though the situation was not resolved, the crew turned toward Portland and prepared for an emergency landing.

At 18:06:46, the flight engineer reported, “We’re going to lose an engine,” and three seconds later, said, “We’re losing an engine.” The captain asked “Why?” The first officer responded, “Fuel.” The captain again asked “Why?”

At 18:07:06, Flight Engineer Mendenhall reported that the engine had “flamed out” (stopped running due to fuel exhaustion). Captain McBroom called Portland Approach Control and requested an immediate clearance to land at PDX, “now.” The airliner was then 18 miles south of the airport. McBroom asked Mendenhall to reset the landing gear circuit breakers. “See if we get gear lights.”

At 18:13:21, Mendenhall said, “We just lost two engines, guys.” Four seconds later, he said, “We just lost two engines—one and two.” [Both engines on the left wing.] McBroom said, “They’re all going,” and told First Officer Beebe to declare an emergency.

At 18:13:50, Beebe called, “Portland Tower, United One-Seventy-Three Heavy, mayday. We’re—The engines are flaming out. We’re going down. We’re not able to make the airport.” There were no further transmissions.

At approximately 18:15, United Flight 173 crashed in a residential area, about 6 nautical miles (11 kilometers) southeast of Portland International Airport. Eight passengers were killed, along with Flight Engineer Mendenhall and Senior Flight Attendant Joan Newton Wheeler. Another 23 persons were seriously injured. Two unoccupied homes were destroyed.

The scene of the crash of Flight 173. The airliner came to rest just north of E. Burnside Street, and east of NE 157th Avenue. (Multnomah County Sheriff’s Office)

The National Transportation Safety Board (NTSB) investigation found:

3.2 Probable Cause

     The National Transportation Safety Board determined that the probable cause of the accident was the failure of the captain to monitor properly the aircraft’s fuel state and to properly respond to the low fuel state and the crew-members’ advisories regarding fuel state. This resulted in fuel exhaustion to all engines. His inattention resulted from preoccupation with a landing gear malfunction and preparations for a landing emergency.

     Contributing to the accident was the failure of the other two flight crewmembers either to fully comprehend the criticality of the fuel state or to successfully communicate their concern to the captain.

—NATIONAL TRANSPORTATION SAFETY BOARD AIRCRAFT ACCIDENT REPORT NTSB-AAR-79-7 , 7 June 1979, at Page 29

United Airlines Flight 173 crashed in a wooded area, southeast of PDX.

When the landing gear was lowered, a gear retraction cylinder failed, allowing the right main gear to fall into place. It locked, but a microswitch which should have activated the landing gear indicator light was damaged.

United Airlines’ operations manual required that the crew have the control tower make a visual check that the gear was down. Though it could not confirm that the gear was locked, if the visual check indicaated that landing gear appeared to be down, a landing was authorized. Captain McBroom deviated from this procedure.

The airliner was a McDonnell Douglas DC-8-61, serial number 45972, which had been delivered to United Airlines on 22 May 1968. At the time of the accident, it had flown a total of 33,114:33 hours.

A United Airlines Douglas DC-8-61, the same type as the accident aircraft. (Jon Proctor)

The DC-8-61 is a four-engine turbojet-powered airliner with swept wings. It was a “stretched” variant of the basic DC-8 design, capable of carrying a maximum of 259 passengers. A 240 inch (6.096 meters) “plug” was installed forward of the wings and a 200 inch (5.08 meters) plug aft. This gave the airliner a total length of 187.4 feet (57.12 meters), with a wingspan of 142.4 feet (43.40 meters) and maximum height of 43 feet, 5.2 inches (13.239 meters). N8082 had a zero fuel weight of 201,927 pounds (91,592.6 kilograms), and a maximum certified takeoff weight (MTOW) of 325,000 pounds (147,418 kilograms). The maximum usable fuel was 23,393 U.S. gallons (88,552 liters).

The DC-8-61 was powered by four Pratt & Whitney Turbo Wasp JT3D-3B engines. This engine was a civil variant of the military TF33 series. The JT3D-7 was a two-spool axial-flow turbojet engine with a 2-stage fan, 14-stage compressor (7 intermediate-, 7 high-pressure stages) and 4-stage turbine (1 high- and 3 low-pressure stages). The JT3D-3B had a maximum power rating of 18,000 pounds of thrust. The engine was 145.5 inches (3.696 meters) long, 53 inches (1.346 meters) in diameter, and weighed 4,340 pounds (1,969 kilograms).

The DC-8-61 had a cruise speed of 0.82 Mach, and a maximum range of 3,200 nautical miles (5,926 kilometers). During a test flight at Edwards Air Force Base, 21 August 1961, a Douglas DC-8-43, N9604Z, reached Mach 1.1012.

© 2020, Bryan R. Swopes