Daily Archives: November 14, 2017

14 November 1974

McDonnell Douglas F-15A-8-MC Eagle 73-0090 at Luke AFB. The two aircraft in this photograph are painted “air superiority blue”. (U.S. Air Force)
McDonnell Douglas F-15A-8-MC Eagle 73-0090 at Luke Air Force Base. The two aircraft in this photograph are painted “Air Superiority Blue” (F.S. 35450). (U.S. Air Force)

14 November 1974: The very first operational McDonnell Douglas F-15A Eagle air superiority fighters were delivered to the 555th Tactical Training Squadron, 58th Tactical Training Fighter Wing at Luke Air Force Base, west of Phoenix, Arizona. The acceptance ceremony was presided over by President Gerald R. Ford.

“. . . I am here today to underscore to you and to the world that this great aircraft was constructed by the American people in the pursuit of peace. Our only aim with all of this aircraft’s new maneuverability, speed, and power is the defense of freedom.

“I would rather walk a thousand miles for peace than to have to take a single step for war.

“I am here to congratulate you: the United States Air Force, McDonnell Douglas, Pratt and Whitney, all of the many contractors and workers who participated in this very, very successful effort, as well as the pilots who have so diligently flight-tested the F-15 Eagle. All of you can underline my feeling that we are still pilgrims on this Earth, and there still is a place for pioneers in America today.”

1974, November 14 – Luke Air Force Base – Phoenix Arizona – Gerald R. Ford, Lieutenant Colonel Ernest "Ted" Laudise – looking in cockpit of F-15 Eagle (plane) – Trip to Arizona; Ceremony to Commemorate the Delivery of the First F-15 Eagle Fighter Aircraft - Phoenix, Arizona
Lieutenant Colonel Ernest “Ted” Laudise explains some features of the McDonnell Douglas F-15A Eagle to President Gerald R. Ford at Luke Air Force Base, 14 November 1974. (Gerald R. Ford Presidential Library and Museum)

The F-15A Eagle is a Mach 2.5+ fighter with outstanding acceleration and maneuverability. The F-15A was produced from 1972 to 1979. It is a single-seat, twin-engine air superiority fighter, 63 feet, 9 inches (19.431 meters) long, with a wingspan of 42 feet, 9½ inches (13.043 meters) and overall height of 18 feet, 5½ inches (5.626 meters). The F-15A has an empty weight of 27,000 pounds (12,247 kilograms) and its maximum takeoff weight (MTOW) is 66,000 pounds (29,937 kilograms).

McDonnell Douglas F-15A-11-MC Eagle 74-0111 at Luke Air Force Base, Arizona, November 1974. (U.S. Air Force)

The F-15A is powered by two Pratt & Whitney JTF22A-25A (F100-PW-100) afterburning turbofan engines capable of producing 14,670 pounds of thrust (65.255 kilonewtons), and 23,830 pounds (105.996 kilonewtons), each, with afterburner. The F100 is a two-spool, axial-flow turbine engine with a 3-stage fan section; 10-stage compressor; single chamber combustion section; and 4-stage turbine (2 low- and 2 high-pressure stages). The F100-PW-100 is 191 inches (4.851 meters) long, 46.5 inches (1.181 meters) in diameter, and weighs 3,035 pounds (1,376.7 kilograms).

F-15 Eagles from the 44th Fighter Squadron, Kadena Air Base, Japan, fly over the Pacific Ocean Aug. 9 during Exercise Valiant Shield. During the exercise, Air Force aircraft and personnel will participate in integrated joint training with Navy and Coast Guard forces. (U.S. Air Force photo/Senior Airman Miranda Moorer)
McDonnell Douglas F-15 Eagles from the 44th Fighter Squadron, Kadena Air Base, Okinawa. (Senior Airman Miranda Moorer, U.S. Air Force)

The cruise speed of the F-15A Eagle is 570 miles per hour (917 kilometers per hour). It has a maximum speed of 915 miles per hour (1,473 kilometers per hour) at Sea Level, and 1,650 miles per hour (2,655 kilometers per hour) at 36,000 feet (10,973 meters). The service ceiling is 65,000 feet (19,812 meters). It can climb in excess of 50,000 feet per minute (254 meters per second), and with a thrust-to-weight ratio of 1.15:1, could climb straight up. The Eagle’s combat radius is 1,222 miles (1,967 kilometers).

The F-15A is armed with one General Electric M61A1 Vulcan 20mm rotary cannon with 940 rounds of ammunition, four AIM-7 Sparrow radar-guided missiles and four AIM-9 Sidewinder heat-seeking missiles.

384 F-15A Eagles were built before production shifted to the improved F-15C version. As F-15Cs became operation, the F-15As were transferred to Air National Guard units assigned to defend continental U.S. airspace. The last F-15A was retired from service in 2009.

McDonnell Douglas F-15C Eagle, 144th Fighter Wing, California Air National Guard. (U.S. Air Force)
McDonnell Douglas F-15C-37-MC Eagle 84-014, 144th Fighter Wing, California Air National Guard. (U.S. Air Force)

© 2016, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

14 November 1969, 19:15:13 UTC, T plus 2:53:13.94

This 1966 illustration depicts the J-2 engine of the S-IVB third stage firing to send the Apollo spacecraft to the Moon. (NASA)
This 1966 illustration depicts the J-2 engine of the S-IVB third stage firing to send the Apollo spacecraft to the Moon. (NASA)

14 November 1969: At 19:09:22 UTC, the Apollo 12 S-IVB third stage engine reignited for the Trans Lunar Injection maneuver.

One of the necessary features of the Rocketdyne J-2 engine was its ability to restart a second time. The third stage was first used to place the Apollo 12 spacecraft into Earth orbit and was then shutdown. When the mission was ready to proceed toward the Moon, the J-2 was re-started. Using liquid hydrogen and liquid oxygen for propellant, Apollo 12’s S-IVB burned for 5 minutes, 41 seconds. The engine was shut down at 19:15:03 UTC. Trans Lunar Injection was at T plus 2 hours, 53 minutes, 13.94 seconds.

© 2016, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

14 November 1969, 16:24:42.4 UTC, T plus 2:42.4

Saturn V S-IC first stage separation. (NASA)
Saturn V S-IC first stage separation. (NASA)

14 November 1969, 16:24:43.4 UTC: The Apollo 12 Saturn 5 passes 42 miles (67 kilometers) altitude at 5,145 miles per hour (8,280 kilometers per hour). The rocket reaches it maximum inertial acceleration of 3.91 g.

At T plus 2 minutes, 42.4 seconds, Apollo 12’s S-IC first stage separates. 0.8 seconds later, the S-II stage Rocketdyne J-2 engines ignited.

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

14 November 1969, 16:22:00.68 UTC, T plus 000.00.00.68

The crew of Apollo 12: Charles “Pete” Conrad, Jr., Richard F. Gordon, Jr., and Alan L. Bean. (NASA)
The crew of Apollo 12: Charles “Pete” Conrad, Jr., Richard F. Gordon, Jr., and Alan L. Bean. (NASA)

14 November 1969: At 16:22:00.68 UTC (11:22:00 a.m., Eastern Standard Time), the Apollo 12 Saturn V (AS-507) lifted off from Launch Complex 39A, Kennedy Space Center, Cape Canaveral, Florida. This was the second manned space flight to the Moon. The flight crew were Commander Charles “Pete” Conrad, Jr., United States Navy, Mission Commander; Commander Richard F. Gordon, Jr., U.S. Navy, Command Module Pilot; Commander Alan L. Bean, U.S. Navy, Lunar Module Pilot. Their destination was Oceanus Procellarum.

Apollo 12 Saturn V (AS-507) lifts off from Launch Complex 39A at the Kennedy Space Center, Cape Canaveral, Florida, at 16:22:00 UTC, 14 November 1969. (NASA)
Apollo 12 Saturn V (AS-507) lifts off from Launch Complex 39A at the Kennedy Space Center, Cape Canaveral, Florida, at 16:22:00 UTC, 14 November 1969. (NASA)

Two lightning strikes 36.5 seconds after liftoff caused the spacecraft’s automatic systems to shut down three fuel cells, leaving Apollo 12 operating on battery power. A third electrical disturbance at T + 52 seconds caused the “8 ball” attitude indicator in the cockpit to fail. A quick thinking ground controller, the “EECOM,” called “Try SCE to Aux.” Alan Bean recalled this from a simulation a year earlier, found the correct switch and restored the failed systems.

The lightning discharge was caused by the Apollo 12/Saturn V vehicle accelerating through rain at approximately 6,300 feet (1,950 meters). There were no thunderstorms in the area. Post-flight analysis indicates that it is probable that the lightning discharge started at the top of the Apollo 12/Saturn V vehicle. Energy of the discharge was estimated at 10⁴–10⁸ joules.

Lightning discharge near Launch Complex 39A (NASA)

Soon after passing Mach 1, the Saturn V rocket encountered the maximum dynamic pressure (“Max Q”) of 682.95 pounds per square foot (0.327 Bar) as it accelerated through the atmosphere.

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, 0.15 inches (110.64621 meters) tall, from the tip of the escape tower to the bottom of the F-1 engines. The first and second stages were 33 feet, .2 inches (10.089 meters) in diameter. Fully loaded and fueled the rocket weighed approximately 6,200,000 pounds (2,948,350 kilograms).¹ 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 (6770.19 kilonewtons), each, for a total of 7,610,000 pounds of thrust at Sea Level (33,851 kilonewtons).² These engines were ignited 6.50 seconds prior to Range Zero and the outer four burned for 161.74 seconds. The center engine was shut down after 135.24 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 (1,022.01 kilonewtons), and combined, 1,161,250 pounds of thrust (5,165.5 kilonewtons).³

The Saturn V third stage was designated S-IVB. It was built by Douglas Aircraft 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.

¹ The AS-507 total vehicle mass at First Stage Ignition (T – 6.50 seconds) was 6,137,868  pounds (2,784,090 kilograms).

² Post-flight analysis gave the total thrust of AS-507’s S-IC stage as 7,594,000 pounds of thrust (33,780 kilonewtons).

³ Post-flight analysis gave the total thrust of AS-507’s S-II stage as 1,161,534 pounds of thrust (5,166.8 kilonewtons).

⁴ Post-flight analysis gave the total thrust of AS-507’s S-IVB stage as 206,956 pounds of thrust (920.6 kilonewtons) during the first burn; 207,688 pounds (923.8 kilonewtons) during the second burn.

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

14 November 1965: Medal of Honor, Captain Ed W. Freeman, United States Army

Captain Ed W. Freeman, United States Army (Mississippi Armed Services Museum)
Captain Ed W. Freeman, United States Army (Mississippi Armed Services Museum)

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 to

CAPTAIN ED W. FREEMAN
UNITED STATES ARMY
for conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty:

Rank and organization: Captain, U.S. Army, Company A, 229th Assault Helicopter Battalion, 1st Cavalry Division (Airmobile).

Place and date: Landing Zone X-Ray, Ia Drang Valley, Republic of Vietnam, 14 November 1965.

Born:  20 November 1927, Neely, Mississippi.  Entered Service At: Hattiesburg, Mississippi

Major Ed W. Freeman, United States Army (1927–2008)

Captain Ed W. Freeman, United States Army, distinguished himself by numerous acts of conspicuous gallantry and extraordinary intrepidity on 14 November 1965 while serving with Company A, 229th Assault Helicopter Battalion, 1st Cavalry Division (Airmobile). As a flight leader and second in command of a 16-helicopter lift unit, he supported a heavily engaged American infantry battalion at Landing Zone X-Ray in the Ia Drang Valley, Republic of Vietnam. The unit was almost out of ammunition after taking some of the heaviest casualties of the war, fighting off a relentless attack from a highly motivated, heavily armed enemy force. When the infantry commander closed the helicopter landing zone due to intense direct enemy fire, Captain Freeman risked his own life by flying his unarmed helicopter through a gauntlet of enemy fire time after time, delivering critically needed ammunition, water and medical supplies to the besieged battalion. His flights had a direct impact on the battle’s outcome by providing the engaged units with timely supplies of ammunition critical to their survival, without which they would almost surely have gone down, with much greater loss of life. After medical evacuation helicopters refused to fly into the area due to intense enemy fire, Captain Freeman flew 14 separate rescue missions, providing life-saving evacuation of an estimated 30 seriously wounded soldiers — some of whom would not have survived had he not acted. All flights were made into a small emergency landing zone within 100 to 200 meters of the defensive perimeter where heavily committed units were perilously holding off the attacking elements. Captain Freeman’s selfless acts of great valor, extraordinary perseverance and intrepidity were far above and beyond the call of duty or mission and set a super example of leadership and courage for all of his peers. Captain Freeman’s extraordinary heroism and devotion to duty are in keeping with the highest traditions of military service and reflect great credit upon himself, his unit and the United States Army.

229th Assault Helicopter Battalion at the beginning of the Battle of Ia Drang. (U.S. Army)
229th Assault Helicopter Battalion at the beginning of the Battle of Ia Drang. (U.S. Army)

© 2016, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather