An Apollo Command and Service Module (CSM) in lunar orbit. (NASA)
25 December 1968: During the 10th orbit of the Moon, the crew of Apollo 8 fired the Service Propulsion System (SPS) of the Command Service Module for the Trans Earth Injection (TEI) maneuver that would send them home.
TEI was a critical maneuver which had to be timed perfectly. It occurred while the spacecraft was on the side of the Moon away from Earth, and so the crew was out of radio communication with Mission Control in Houston, Texas. If initiated too soon, the Apollo capsule would miss Earth, or ricochet off the atmosphere. Too late and the capsule would re-enter too steeply and burn up.
The engine had to burn for precisely the correct amount of time to accelerate the space craft out of lunar orbit and to arrive at Earth at exactly the correct point in space where where our home planet would be 57 hours, 26 minutes, 56.2 seconds later, as it traveled in its orbit around the Sun.
Trans-Earth Injection maneuver (NASA S66-10988)
The SPS engine was an AJ10-137, built by Aerojet General Corporation of Azusa, California. It burned a hypergolic fuel combination of Aerozine 50 and nitrogen tetraoxide, producing 20,500 pounds of thrust (91.19 kilonewtons). It was designed for a 750 second burn, or 50 restarts during a flight. The SPS engine had already been used for the Trans Lunar Injection maneuver, sending Apollo 8 from Earth orbit to the moon, and now served the same function in reverse.
The SPS started at mission time T+089:19:16.6 and cut off at T+089:22:40.3, a burn duration of 3 minutes, 23.97 seconds, increasing the velocity (Δv, or “delta–v”) 3,531 feet per second (1,076 meters per second).
Apollo 8 Coming Home by Robert T. McCall, 1969. (Smithsonian Institution National Air and Space Museum)
At Istres, in the south of France, French World War I fighter ace and test pilot Raymond Delmotte flew a Caudron C.460 Rafale single-engine monoplane over a 3-kilometer (1.864 miles) straight course at an average speed of 505.85 kilometers per hour (314.32 miles per hour), setting a new Fédération Aéronautique Internationale (FAI) world record speed for land planes.¹
Flight reported the event:
“. . . The attempt consisted of four trial flights over a regulation three-kilometre straight course, the average time made during all of them being taken as the final result. Delmotte made a preliminary attempt in the morning, but, owing to a crosswind of 10 m.p.h. then prevailing, he was able to attain only 478 km./hr. as the average result. He then waited until the afternoon, when, the wind having fallen to about 2½ m.p.h., he took off again and accomplished an average speed of 505.84 km./hr., according to the official timers, who will submit this figure to the F.A.I. for homologation.”
—FLIGHT The Aircraft Engineer & Airships, No. 1358, Vol. XXVII, Thursday, 3 January 1935 at Page 16
The New York Daily News reported that Delmotte won a prize of 300,000 francs, equivalent to $19,000 U.S. dollars.
Raymond Delmotte and his dog, a fox terrier named Tailwind, with a Caudron C.460, No. 6907, race number 8. (Le musée de Caudron)
The Caudron C.460 Rafale was designed by Marcel Riffard, technical director of Société des Avions Caudron, a French aircraft manufacturer which had been established in 1909. (Rafale means gust: “a brief, strong, rush of wind.”) It was a light-weight, single-seat, single-engine racer with retractable landing gear. Three were built.
Three-way general arrangement drawing of the Caudron C.460 from a National Advisory Committee on Aeronautics technical publication. (NACA)
The airplane was primarily constructed of spruce, covered with doped fabric, with the engine cowling and fuel tanks fabricated of magnesium. It was 7.125 meters (23 feet, 4½ inches) long with a wingspan of 6.75 meters (22 feet, 1¾ inches) and overall height of 1.8 meters (5 feet, 11 inches). The C.460’s empty weight was 520 kilograms (1,146 pounds) and it had a gross weight of 875 kilograms (1,929 pounds).
Raymond Delmotte in the cockpit of a Caudron racer, 1935. (Bibliothèque nationale de France)
The C.460s were originally powered by an air-cooled, supercharged, 7.947-liter-displacement (484.928 cubic inches) Renault 6Q inverted 6-cylinder inline overhead valve (OHV) engine. It had 2 valves per cylinder and a compression ratio of 6:1. The engine produced 310 horsepower at 3,000 r.p.m., and 325 horsepower at 3,200 r.p.m. The direct-drive, left-hand tractor engine turned a two-bladed metal Helices Ratier automatic variable-pitch propeller with a diameter of 1.80 meters (5 feet, 10.9 inches). The Renault 6Q was 1.62 meters (5 feet, 3.8 inches) long, 0.93 meters (3 feet, 0.6 inches) high and 0.52 meters (1 foot, 8.5 inches) wide. It weighed 190 kilograms (419 pounds).
Prior to Delmotte’s speed record attempt, the C.460’s engine was changed to a larger, more powerful 9.501 liter (579.736 cubic inches) Renault 6Q engine, also a direct-drive engine, which produced 370 chaval vapeur (364.9 horsepower) at 3,250 r.p.m. The engine’s centrifugal supercharger turned 26,000 r.p.m. The variable-pitch Ratier propeller was retained.
Raymond Delmotte with his record-setting Caudron C.460 Rafale. (Le musée de l’Air et de l’Espace MA25842)Raymond Delmotte’s Société des Avions Caudron C.460 Rafale. (FAI)
There is little biographical information available about Raymond Delmotte. He was born at Saint-Quentin, Aisne, France, 11 November 1894. He married Mlle Louisa Dagneaux, and they had three children, Fernande, Raymond, and Ann Marie. He held ten FAI records for speed and distance. He died 13 December 1962.
The Rue Raymond Delmotte in Saint-Quentin is named in his honor.
Raymond Delmotte with Mme Delmotte and his canine associate, 6 May 1937. (Henry Ely-Aix)
Launch of the first ESA Ariane 1, 24 December 1979. (ESA)
24 December 1979: The first European Space Agency Ariane 1, a four-stage expendable launch vehicle, was launched at Ensemble de Lancement Ariane 1 (ELA-1), Centre Spatial Guyanais, Kourou, Guiana. The rocket was designed to place two communications satellites into a geosynchronous transfer orbit.
“For all the people on Earth the crew of Apollo 8 has a message we would like to send you.”
In the beginning God created the heaven and the earth. And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters. And God said, Let there be light: and there was light. And God saw the light, that it was good: and God divided the light from the darkness.
Jim Lovell:
And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day. And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so. And God called the firmament Heaven. And the evening and the morning were the second day.
Frank Borman:
And God said, Let the waters under the heavens be gathered together unto one place, and let the dry land appear: and it was so. And God called the dry land Earth; and the gathering together of the waters called the Seas: and God saw that it was good.
“And from the crew of Apollo 8, we close with good night, good luck, a Merry Christmas, and God bless all of you – all of you on the good Earth.”
This video from the NASA Goddard Space Flight Center describes the taking of this iconic photograph:
Brigadier General Frederick Walker Castle, United States Army Air Forces. (Photographed circa 1943, as a lieutenant colonel.) (U.S. Air Force)
The President of the United States of America, in the name of Congress, takes pride in presenting the Medal of Honor (Posthumously) to
BRIGADIER GENERAL (AIR CORPS) FREDERICK WALKER CASTLE
UNITED STATES ARMY AIR FORCES,
for service as set forth in the following
CITATION:
“For conspicuous gallantry and intrepidity in action above and beyond the call of duty while serving with the 487th Bombardment Group (H), 4th Bombardment Wing, Eighth Air Force.
Brigadier General Castle was air commander and leader of more than 2,000 heavy bombers in a strike against German airfields on 24 December 1944. En route to the target, the failure of one engine forced him to relinquish his place at the head of the formation. In order not to endanger friendly troops on the ground below, he refused to jettison his bombs to gain speed maneuverability. His lagging, unescorted aircraft became the target of numerous enemy fighters which ripped the left wing with cannon shells, set the oxygen system afire, and wounded two members of the crew. Repeated attacks started fires in two engines, leaving the Flying Fortress in imminent danger of exploding. Realizing the hopelessness of the situation, the bail-out order was given. Without regard for his personal safety he gallantly remained alone at the controls to afford all other crewmembers an opportunity to escape. Still another attack exploded gasoline tanks in the right wing, and the bomber plunged earthward, carrying General Castle to his death. His intrepidity and willing sacrifice of his life to save members of the crew were in keeping with the highest traditions of the military service.”
/s/ HARRY S. TRUMAN
War Department, General Orders No. 22 (February 28, 1946)
Colonel Frederick Walker Castle, U.S. Army Air Corps (center) and Lieutenant Colonel Elliot Vandevanter, Jr. (left), speaking to Brigadier General Curtiss E. LeMay, 10 November 1943. (IWM, Roger Freeman Collection)
Brigadier General Frederick Walker Castle, commanding officer of the 4th Combat Bombardment Wing, Heavy, was flying the lead bomber of the 487th Bombardment Group, on Air Force Mission No. 760, which was an attack against German air fields. This was a “maximum effort” involving three air divisions—a total of 2,046 B-17 and B-24 bombers, escorted by 853 fighters. The 487th was leading the 3rd Air Division. The Group’s target, with a total of 96 bombers, was the airfield at Babenhausen, Germany.
As the Wing’s commander, General Castle flew as co-pilot aboard the lead ship, B-17G 44-8444 of the 487th, with pilot 1st Lieutenant Robert W. Harriman and his lead crew of 6 officers and 3 sergeant/gunners. As the leading Pathfinder, Treble Four carried three navigators.
The combat crew of “Treble Four.” Front row, left to right: Lt. Wilkinson, (not aboard for Mission 760); S/SGT Lowell B. Hudson, Waist Gunner; T/SGT Quentin W. Jeffers, Flight Engineer, Top Turret Gunner; T/SGT Lawrence H. Swain, Radio Operator, Top Gunner; Standing, left to right: 1st Lt. Robert W. Harriman, Pilot, Aircraft Commander; 1st Lt. Claude L. Rowe, Co-Pilot (Tail Gunner, Formation Observer for Mission 760); 1st Lt. Bruno S. Procopio, Radar Navigator; 1st Lt. Henry P. MacArty, Pilotage Navigator; 1st Lt. Paul L. Biri, Bombardier. Not included, Captain Edmund F. Auer, Navigator. Lt. Harriman, Lt. Rowe, T/SGT Swain, were killed in action 24 December 1944. (487thbg.org)
The group began taking off from RAF Lavenham at 0900 and assembled at 7,000 feet (2,134 meters) in what was described as “perfect weather.” En route to their target, the B-17s continued climbing to 22,000 feet (6,706 meters) and leveled off at 1223.
B-17 Flying Fortress heavy bombers of the 487th Bombardment Group, Heavy, circa 1944. (American Air Museum in Britain, Roger Freeman Collection FRE 6772)
At about this time, Treble Four‘s number four engine, outboard on the right wing, began losing oil and could not produce its normal power. As the bomber slowed, it dropped out of the formation, with General Castle relinquishing the lead to a second Pathfinder B-17. The airplane, now on its own, was quickly attacked by Luftwaffe fighters, putting two engines out of operation and setting the bomber on fire. Two crewmen were wounded in the first attack.
The Battle of the Bulge, a major land engagement, was under way, and Castle’s bomber was overhead American 1st Army formations. The General did not want it to come down among the friendly lines with its full load of bombs.
Lieutenant Harriman and General Castle continued to fly the disabled airplane as the crew was ordered to abandon ship. Six men bailed out. One man was machine-gunned in his parachute by an enemy fighter and was killed. Another lost his parachute and also died. A third died of his wounds at a hospital.
At about 12,000 feet (3,658 meters) the B-17’s right wing came off and Treble Four entered a violent spin. The fuselage broke into several sections. The largest remaining part of the airplane, the forward fuselage, including the bomb bay, left wing and inboard right wing, crashed approximately 300 yards (275 meters) from Chateaux d’Englebermont in Belgium. The wreck was on fire and bombs exploded.
Lieutenant Harriman and General Castle, still in the cockpit, were killed.
The wreckage of General Castle’s Lockheed Vega-built B-17G-65-VE Flying Fortress 44-8444, Treble Four. (U.S. Air Force)
Treble Four was a B-17G-65-VE Flying Fortress, built by the Vega Aircraft Corporation (a subsidiary of Lockheed) at Burbank, California. It was delivered to Dallas, Texas, 14 September 1944. After crossing the continent, the new bomber departed Bangor, Maine, 16 October 1944, and headed across the North Atlantic Ocean for England. On 20 November, 44-8444 was assigned to the 836th Bombardment Squadron (Heavy), 487th Bombardment Group (Heavy), at Air Force Station 137 (RAF Lavenham), near Sudbury, Suffolk, England.
The airplane was a “Pathfinder,” equipped with H2X ground-mapping radar which allowed a radar navigator to locate a target through cloud cover. The rotating antenna replaced the bomber’s ventral ball turret.
The two B-17s in this photograph, both Lockheed-Vega B-17G-20-VE Flying Fortresses, 42-97627 and 42-97555, are equipped with H2X ground-mapping radar. (U.S. Air Force)Colonel Frederick Walker Castle (fourth from left) joins Major John J. McNaboe during the debriefing of 1st Lt. James A. Verinis and his combat crew of the 324th Bombardment Squadron (Heavy). Verinis had previously served as co-pilot of the B-17F Memphis Belle. (U.S. Air Force)
Frederick Walker Castle was born at Fort William McKinley, Manila, Luzon, Philippine Islands, 14 October 1908. He was the first of three children of 2nd Lieutenant Benjamin Frederick Castle, United States Army, and Winifred Alice Walker Castle.
Castle attended Boonton High School, in Boonton, New Jersey, and the Storm King School at Cornwall-on-Hudson, New York.
Castle enlisted in the New Jersey National Guard in 1924. He entered the United States Military Academy at West Point, New York, as a cadet in 1926. Upon graduating, on 12 June 1930, he was commissioned a 2nd Lieutenant, Corps of Engineers, United States Army.
Castle transferred to Air Corps in 1931 and trained as a pilot at March Field, near Riverside, California.
12 September 1936, Castle was promoted to the rank of first lieutenant, Air Corps, assigned to 27th Division Aviation.
Recalled to active duty at the rank of captain, January 1942. He was assigned to the staff of Major General Ira Eaker, engaged in forming Eighth Air Force in England. He was promoted to colonel, January 1943. He served as chief of staff for supply.
From 19 June 1943, Colonel Castle commanded the 94th Bombardment Group, Heavy, at RAF Bury St. Edmunds (USAAF Station 468), and in April 1944, took command of the 4th Combat Bomb Wing, Heavy. Castle was promoted to the rank of brigadier general, 20 November 1944.
Brigadier General Frederick W. Castle receives his insignia of rank from his staff, 14 December 1944. (IWM, Roger Freeman Collection)
General Castle’s remains was buried at the Henri Chapelle American Cemetery near Welkenraedt, Belgium.
In addition to the Medal of Honor, Brigadier General Castle was awarded the Legion of Merit, the Silver Star, the Distinguished Flying Cross with three oak leaf clusters (four awards), and the Air Medal with four oak leaf clusters. The Union of Soviet Socialist Republics awarded him its Орден Кутузова (Orden Kutuzova, the Order of Kutuzov); Belgium, the Croix de Guerre avec palme; France appointed him an Officier de la Légion d’honneur and awarded its Croix de Guerre avec palme.
Merced Army Airfield was renamed Castle Field, 17 January 1946, in honor of General Castle.
NOTE: A detailed analysis of “The Crash of B-17 44-8444 Treble Four” by Paul M. Webber can be found at: https://web.archive.org/web/20170127032552/http://www.geocities.ws/pmwebber/castle_treble4.htm
