11 April 1975: “The only time the five ship fleet of NASA Dryden’s F-104 Starfighters was ever airborne at the same time. Pilots were: F-104N #811-Bill Dana; F-104N #812-Tom McMurtry; F-104A #818-Einar Enevoldson; F-104A #820-Gary Krier; and F-104B #819-Fitz Fulton and Ray Young. Photo taken from T-38 #821 flown by Don Mallick.”by
11 April 1970: At 2:13:00 p.m., Eastern Standard Time, Apollo 13 was launched from Launch Complex 39A at the Kennedy Space Center, Cape Canaveral, Florida. This mission was planned to be the third manned lunar landing. The destination was the Fra Mauro Highlands. In command was Captain James A. Lovell, Jr., United States Navy. The Command Module Pilot was John L. “Jack” Swigert, Jr. (who was originally scheduled as the backup CSM pilot, but had replaced Lieutenant Commander T. Kenneth Mattingly II, USN, just three days before launch). and the Lunar Module Pilot was Fred W. Haise, Jr., A NASA astronaut (formerly a U.S. Marine Corps and U.S. Air Force fighter pilot, test pilot and instructor).
The crew change had been made because it was believed that Ken Mattingly had been exposed to measles and NASA administrators did not want to risk that he might become ill during the flight.
The F-1 engines of the S-IC first stage shut down at 2 minutes, 43.6 seconds. After being jettisoned, the first stage continued on a ballistic trajectory and fell into the Atlantic Ocean at 000:09:52.64, 355.3 nautical miles (408.9 statute miles/658.0 kilometers) from the launch site.
At T + 000:05:30.64, while accelerating toward Earth orbit, the center J-2 engine on the Saturn S-II second stage shut down 2 minutes, 12.36 seconds early, which required the other four engines to increase their burn by 34.53 seconds, and the S-IVB third stage engine had to burn 9 seconds seconds longer than planned to achieve the necessary velocity for orbital insertion. The second stage traveled 2,452.6 nautical miles (2,822.4 statute miles/4,542.2 kilometers) before hitting the Atlantic’s surface at T + 20 minutes, 58.1 seconds.
Following the Trans Lunar Injection maneuver, Apollo 13’s S-IVB third stage was intentionally crashed into the lunar surface. The impact took place at 00:09:41 UTC, 15 April. The stage was traveling at 5,600 miles per hour (9,012 kilometers per hour). The energy at impact was equivalent to the explosion 7.7 tons of TNT.
The Apollo 13 mission did not go as planned. An explosion inside the service module was a very near disaster, and the lunar landing had to be aborted. Returning the three astronauts safely to Earth became the primary task.
The Saturn V rocket was a three-stage, liquid-fueled heavy launch vehicle. Fully assembled with the Apollo Command and Service Module, it stood 363 feet (110.642 meters) tall. The first and second stages were 33 feet (10.058 meters) in diameter. Fully loaded and fueled the rocket weighed 6,200,000 pounds (2,948,350 kilograms). It could lift a payload of 260,000 pounds (117,934 kilograms) to Low Earth Orbit.
The first stage was designated S-IC. It was designed to lift the entire rocket to an altitude of 220,000 feet (67,056 meters) and accelerate to a speed of more than 5,100 miles per hour (8,280 kilometers per hour). The S-IC stage was built by Boeing at the Michoud Assembly Facility, New Orleans, Louisiana. It was 138 feet (42.062 meters) tall and had an empty weight of 290,000 pounds (131,542 kilograms). Fully fueled with 203,400 gallons (770,000 liters) of RP-1 and 318,065 gallons (1,204,000 liters) of liquid oxygen, the stage weighed 5,100,000 pounds (2,131,322 kilograms). It was propelled by five Rocketdyne F-1 engines, producing 1,522,000 pounds of thrust, each, for a total of 7,610,000 pounds of thrust at Sea Level. These engines were ignited seven seconds prior to lift off and the outer four burned for 168 seconds. The center engine was shut down after 142 seconds to reduce the rate of acceleration. The F-1 engines were built by the Rocketdyne Division of North American Aviation at Canoga Park, California.
The S-II second stage was built by North American Aviation at Seal Beach, California. It was 81 feet, 7 inches (24.87 meters) tall and had the same diameter as the first stage. The second stage weighed 80,000 pounds (36,000 kilograms) empty and 1,060,000 pounds loaded. The propellant for the S-II was liquid hydrogen and liquid oxygen. The stage was powered by five Rocketdyne J-2 engines, also built at Canoga Park. Each engine produced 232,250 pounds of thrust, and combined, 1,161,250 pounds of thrust.
The Saturn V third stage was designated S-IVB. It was built by McDonnell Douglas Astronautics Company at Huntington Beach, California. The S-IVB was 58 feet, 7 inches (17.86 meters) tall with a diameter of 21 feet, 8 inches (6.604 meters). It had a dry weight of 23,000 pounds (10,000 kilograms) and fully fueled weighed 262,000 pounds. The third stage had one J-2 engine and also used liquid hydrogen and liquid oxygen for propellant. The S-IVB would place the Command and Service Module into Low Earth Orbit, then, when all was ready, the J-2 would be restarted for the Trans Lunar Injection.
Eighteen Saturn V rockets were built. They were the most powerful machines ever built by man.
© 2019, Bryan R. Swopesby
The President of the United States of America, authorized by Act of Congress, March 3, 1863 has awarded in the name of the Congress the Medal of Honor posthumously to:
A1C WILLIAM H. PITSENBARGER
UNITED STATES AIR FORCE
for conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty Near Cam My, 11 April 1966:
Rank and organization: Airman First Class, U.S. Air Force, Detachment 6, 38th Aerospace Rescue and Recovery Squadron, Bien Hoa Air Base, Republic of Vietnam.
Place and date: Near Cam My, 11 April 1966
Entered service at: Piqua, Ohio
Born: 8 July 1944, Piqua, Ohio
Citation: Airman First Class Pitsenbarger distinguished himself by extreme valor on 11 April 1966 near Cam My, Republic of Vietnam, while assigned as a Pararescue Crew Member, Detachment 6, 38th Aerospace Rescue and Recovery Squadron. On that date, Airman Pitsenbarger was aboard a rescue helicopter responding to a call for evacuation of casualties incurred in an on-going firefight between elements of the United States Army’s 1st Infantry Division and a sizable enemy force approximately 35 miles east of Saigon. With complete disregard for personal safety, Airman Pitsenbarger volunteered to ride a hoist more than one hundred feet through the jungle, to the ground. On the ground, he organized and coordinated rescue efforts, cared for the wounded, prepared casualties for evacuation, and insured that the recovery operation continued in a smooth and orderly fashion. Through his personal efforts, the evacuation of the wounded was greatly expedited. As each of the nine casualties evacuated that day were recovered, Pitsenbarger refused evacuation in order to get one more wounded soldier to safety. After several pick-ups, one of the two rescue helicopters involved in the evacuation was struck by heavy enemy ground fire and was forced to leave the scene for an emergency landing. Airman Pitsenbarger stayed behind, on the ground, to perform medical duties. Shortly thereafter, the area came under sniper and mortar fire. During a subsequent attempt to evacuate the site, American forces came under heavy assault by a large Viet Cong force. When the enemy launched the assault, the evacuation was called off and Airman Pitsenbarger took up arms with the besieged infantrymen. He courageously resisted the enemy, braving intense gunfire to gather and distribute vital ammunition to American defenders. As the battle raged on, he repeatedly exposed himself to enemy fire to care for the wounded, pull them out of the line of fire, and return fire whenever he could, during which time, he was wounded three times. Despite his wounds, he valiantly fought on, simultaneously treating as many wounded as possible. In the vicious fighting which followed, the American forces suffered 80 percent casualties as their perimeter was breached, and airman Pitsenbarger was finally fatally wounded. Airman Pitsenbarger exposed himself to almost certain death by staying on the ground, and perished while saving the lives of wounded infantrymen. His bravery and determination exemplify the highest professional standards and traditions of military service and reflect great credit upon himself, his unit, and the United States Air Force.
© 2017, Bryan R. Swopesby
11 April 1952: At the Piasecki Helicopter Corporation factory at Morton Grove, Pennsylvania, the first YH-21 tandem-rotor helicopter, serial number 50-1231, made it’s first flight. The test pilots were Leonard Joseph (“Len”) LaVassar and Martin P. (“Marty”) Johnson, both former U.S. Navy aviators.
The Piasecki Helicopter Corporation built 18 pre-production YH-21-PH helicopters, followed by three production variants, the H-21A, H-21B and H-21C.
The U.S. Air Force immediately ordered 32 H-21A helicopters for Search and Rescue operations. The Workhorse was well suited to cold weather operations and it was widely used in Alaska, Canada, and the Antarctic. Another 163 H-21B models were ordered as a troop transports. The U.S. Army ordered a similar H-21C variant.
The YH-21 was a single-engine, tandem-rotor transport helicopter. It was normally operated by two pilots, with a flight mechanic (crew chief), and could carry up to 20 soldiers under ideal conditions.
With rotors turning, the YH-21’s overall length was 86 feet, 5 inches (26.340 meters). The fuselage was 52 feet, 6 inches (16.002 meters) long, and the helicopter had an overall height of 16 feet, 0 inches (4.877 meters). The rotors were 44 feet, 0 inches (13.411 meters) in diameter. The YH-21’s empty weight was approximately 8,117 pounds (3,682 kilograms) and maximum gross weight was 14,500 pounds (6,577 kilograms).
The forward rotor turned counter-clockwise, as seen from above. (The advancing blade is on the helicopter’s right side.) The rear rotor turns the opposite direction. Normal operating speed for the main rotors was 233 to 258 r.p.m. (233–270 r.p.m. in autorotation.) The counter-rotating rotors cancelled out engine torque, eliminating any need for a tail rotor. The angle in the fuselage was intended to provide adequate vertical clearance between the intermeshing fore and aft rotor assemblies. (Later tandem rotor helicopters use raised pylons.)
The H-21 was powered by a single air-cooled, supercharged, 1,823.129-cubic-inch-displacement (29.875 liter) Wright Aeronautical Division Cyclone 9 863C9WD1 (R-1820-103) nine-cylinder radial, mounted inside the fuselage at midship, and drove the front and rear rotors in opposite directions through drive shafts and gear boxes. The Wright R-1820-103 engine was rated at 1,275 horsepower at 2,500 r.p.m., and 1,425 horsepower at 2,700 r.p.m., for takeoff. This direct-drive engine had a compression ratio of 6.80:1 and required 100/130 aviation gasoline. The engine was 4 feet, 0.50 inches (1.232 meters) long, 4 feet, 6.95 inches (1.396 meters) in diameter, and weighed 1,350 pounds (612 kilograms). Wright built 971 R-1820-103s from November 1950 through 1957.
The YH-21 could reach a maximum speed in level flight of 131 knots (151 miles per hour/243 kilometers per hour). Its Never Exceed limit (VNE) was 151 knots (174 miles per hour /280 kilometers per hour) (diving). The maximum Sea Level range was 397 nautical miles (457 statute miles/735 kilometers) at 125 knots (144 miles per hour/232 kilometers per hour). Its service ceiling was 19,200 feet (5,852 meters).
In 1955, Piasecki became Vertol and eventually Boeing Vertol. The company would continue to produce tandem rotor helicopters such as the H-46 Sea Knight and the CH-47 Chinook, which is still in production.
© 2019, Bryan R. Swopesby
MEDAL OF HONOR
First Lieutenant Edward Stanley Michael
United States Army Air Forces
Rank: First Lieutenant, U.S. Army Air Corps
Organization: 364th Bombardment Squadron, 305th Bombardment Group (H), 8th Air Force
Place and Date: Over Germany, 11 April 1944
Entered Service: Chicago
Born: 2 May 1918, Chicago, Ill.
General Orders: War Department. General Orders No. 5. January 15, 1945
Citation: The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to First Lieutenant (Air Corps) Edward Stanley Michael, United States Army Air Forces, for conspicuous gallantry and intrepidity above and beyond the call of duty while serving as pilot of a B-17 aircraft on a heavy bombardment mission to Germany, April 11, 1944. The group in which 1st Lt. Michael was flying was attacked by a swarm of fighters. His plane was singled out and the fighters pressed their attacks home recklessly, completely disregarding the Allied fighter escort and their own intense flak. His plane was riddled from nose to tail with exploding cannon shells and knocked out of formation, with a large number of fighters following it down, blasting it with cannon fire as it descended. A cannon shell exploded in the cockpit, wounded the copilot, wrecked the instruments, and blew out the side window. 1st Lt. Michael was seriously and painfully wounded in the right thigh. Hydraulic fluid filmed over the windshield making visibility impossible, and smoke filled the cockpit. The controls failed to respond and 3,000 feet were lost before he succeeded in leveling off. The radio operator informed him that the whole bomb bay was in flames as a result of the explosion of 3 cannon shells, which had ignited the incendiaries. With a full load of incendiaries in the bomb bay and a considerable gas load in the tanks, the danger of fire enveloping the plane and the tanks exploding seemed imminent. When the emergency release lever failed to function, 1st Lt. Michael at once gave the order to bail out and 7 of the crew left the plane. Seeing the bombardier firing the navigator’s gun at the enemy planes, 1st Lt. Michael ordered him to bail out as the plane was liable to explode any minute. When the bombardier looked for his parachute he found that it had been riddled with 20mm fragments and was useless. 1st Lt. Michael, seeing the ruined parachute, realized that if the plane was abandoned the bombardier would perish and decided that the only chance would be a crash landing. Completely disregarding his own painful and profusely bleeding wounds, but thinking only of the safety of the remaining crewmembers, he gallantly evaded the enemy, using violent evasive action despite the battered condition of his plane. After the plane had been under sustained enemy attack for fully 45 minutes, 1st Lt. Michael finally lost the persistent fighters in a cloud bank. Upon emerging, an accurate barrage of flak caused him to come down to treetop level where flak towers poured a continuous rain of fire on the plane. He continued into France, realizing that at any moment a crash landing might have to be attempted, but trying to get as far as possible to increase the escape possibilities if a safe landing could be achieved. 1st Lt. Michael flew the plane until he became exhausted from the loss of blood, which had formed on the floor in pools, and he lost consciousness. The copilot succeeded in reaching England and sighted an RAF field near the coast. 1st Lt. Michael finally regained consciousness and insisted upon taking over the controls to land the plane. The undercarriage was useless; the bomb bay doors were jammed open; the hydraulic system and altimeter were shot out. In addition, there was no airspeed indicator, the ball turret was jammed with the guns pointing downward, and the flaps would not respond. Despite these apparently insurmountable obstacles, he landed the plane without mishap.
By 11 April 1944, four of Lt. Michael’s original crew had been replaced. For the six remaining, Eight Air Force Mission 298 would be their twenty-sixth combat mission. (The combat tour had just been increased from 25 missions to 30.)
On that day, 917 B-17 Flying Fortress and B-24 Liberator heavy bombers, along with an escort of 819 P-38 Lightning, P-47 Thunderbolt and P-51 Mustang fighters were dispatched to strike aircraft production centers in Germany. The mission was divided into three sections. Lieutenant Michael’s B-17 was one of the 341 in the first section, and one of the 127 which were assigned to attack a ball bearing plant at Stettin, Germany (now, Szczecin, Poland).
While on the approach to the target, Bertie Lee came under continuous attack by enemy fighters. The airplane was heavily damaged and several crew members, including Lieutenant Michael, were severely wounded. Two engines were out and several incendiary bombs in the bomb bay caught fire.
When Michael found that he was unable to jettison the bomb load, he ordered his crew to bail out. Four gunners and the airplane’s navigator jumped. The flight engineer/top turret gunner was badly injured and could not put on his parachute. Lieutenant Michael put on the ‘chute for him, and as he jumped, Michael pulled the parachute’s rip cord.
All of those who escaped from Bertie Lee were captured and held as prisoners of war. One was so badly injured, though, that Germany repatriated him to the United States.
Of the original aircraft sent on the mission, 52 B-17s were lost, 4 (including Bertie Lee) were damaged beyond repair, and another 313 damaged. 12 B-24s were lost, 1 damaged beyond repair, and 63 damaged. Seven of the P-47s were shot down and 16 damaged. Nine P-51s were shot down and 13 damaged. The P-38s were unscathed.
19 U.S. airman were listed as Killed in Action, 31 wounded, and 668 missing in action.
Gunners and fighter pilots claimed 124 enemy fighters shot down.
Mission 298 was one of the worst single-day losses of World War II.
1st Lieutenant Michael was hospitalized for months while he recovered from his wounds, and was sent back to the United States to recover.
The Medal of Honor was presented to 1st Lieutenant Edward S. Michael by Franklin Delano Roosevelt, 32nd President of the United States of America, in a ceremony at The White House, Washington, D.C., 10 January 1945.
Edward Stanley Michael was born at Chicago, Illinois, 2 May 1918. He was the son of Stanley William Michael and Lillian Harriet Konior Michael. He attended Chicago High School, graduating in 1936. By 1940, Edward Michael was employed as a machinist.
On 2 November 1940, Michael enlisted as a private in the Air Corps, United States Army. He was 5 feet, 10 inches tall and weighed 148 pounds. He served at Wheeler Field, Honolulu, Territory of Hawaii, and was present during the air attack of 7 December 1941. Private First Class Michael was appointed an aviation cadet, 5 June 1942. He graduated from flight training and was commissioned as a second lieutenant, Air Reserve, 12 April 1943. He trained as a multi-engine pilot at Douglas Army Airfield, in Cochise County, Arizona, and then underwent training as a B-17 Flying Fortress pilot at Geiger Army Airfield, Spokane, Washington.
2nd Lieutenant Michael married Miss Bertie Lee Parks, whom he had met while training in Arizona, at Geiger Field, on 21 October 1943. He would later name his B-17G 42-37931, Bertie Lee, in her honor. They would divorce in 1956.
Michael was promoted to the rank of 1st Lieutenant, Army of the United States (A.U.S.), 25 Jan 1944.
Lieutenant Michael remained in the Air Corps following the War. On 5 July 1946 his wartime Army of the United States rank was converted to 1st Lieutenant, United States Army Air Forces, with date of rank effective 12 April 1946.
Captain Michael returned to flight status ferrying aircraft from Love Field, Dallas, Texas, and was the assigned to Fort Totten, Washington, D.C., for air transport operations. When the United States Air Force was established as a separate military service in 1948, Captain Michael was transferred.
Michael graduated from the Air University at Maxwell Field, Montgomery, Alabama, in April 1949. He was next assigned to the 1729th Air Transport Squadron, Military Air Transport Service (M.A.T.S.) at Hill Air Force Base, Utah, and remained there for three years. In September 1952, Captain Michael was assigned as operations officer of the 1503rd Air Support Squadron at NAS Agana, Guam, in the Marianas Islands, followed by assignment to the 1500th Air Base Wing, Hickam Air Force Base, Honolulu, Hawaii.
In 1957, Major Michael was trained as a B-47 Stratojet pilot at McConnell Air Force Base, near Wichita, Kansas, then served with the 4347th Combat Training Wing at McConnell.
Major Michael married his second wife, Ms. Louise Erdman, 21 November 1958, at Salt Lake City, Utah.
Major Michael was promoted to the rank of lieutenant colonel, 1 August 1963.
Lieutenant Colonel Edward Stanley Michael retired from the United States Air Force on 12 February 1971, after 30 years of military service.
In addition to the Medal of Honor, during his military service Lieutenant Colonel Michael was awarded the Distinguished Flying Cross; the Purple Heart; the Air Medal with four oak leaf clusters (five awards); the Air Force Commendation Medal; Army Commendation Medal; Presidential Unit Citation; Air Force Gallant Unit Citation; Army Good Conduct Medal; American Defense Service Medal; American Campaign Medal; Asiatic-Pacific Campaign Medal with one bronze service star; European-African-Middle East Campaign Medal with bronze campaign star; World War II Victory Medal; Army of Occupation Medal; National Defense Servce Medal with bronze star (two awards); and the Air Force Training Ribbon with one silver and one bronze oak leaf cluster (six awards).
Edward Stanley Michael died at Fairfield, California, 10 May 1998, at the age of 76 years. He was buried at Evergreen Cemetery, Springville, Utah.
Bertie Lee was a B-17G-20-DL Flying Fortress, 42-37931 (Douglas serial number 8897), built by the Douglas Aircraft Company at Long Beach, California, in October 1943. It was delivered to Denver, Colorado, on 13 October. On 5 November 1943, the B-17 was flown to Grand Island Army Air Field, Nebraska; then to Bangor, Maine on 7 November. It was flown across the Atlantic Ocean to England, arriving at RAF Chelveston (USAAF Station 105) on 5 January 1944. The bomber was assigned to the 364th Bombardment Squadron (Heavy), 305th Bombardment Group (Heavy) and given the fuselage identification markings WF-D.
When 42-37931 was assigned to Lieutenant Michael and his combat crew, he named the airplane Bertie Lee, after his wife.
Bertie Lee was damaged beyond repair when it crash-landed at RAF Grimsby on 11 April 1944. It was later scrapped.
© 2018, Bryan R. Swopesby