AidSpace Blog

Discovery’s First Mission 30 Years Ago

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Discovery entered service in 1984 as the third orbiter in the space shuttle fleet. Columbia and Challenger had already flown a total of 11 missions as America’s “space truck.” Discovery’s first mission, STS-41D, followed suit as the crew deployed, for the first time, three communications satellites, but it also signaled how the shuttle could serve as more than a delivery vehicle.

Discovery’s first mission began with drama—three launch delays, the first on-pad engine shutdown (just four seconds before liftoff), a related fire on the launch pad, and rollback from the pad for a major payload shuffle—but after launch it progressed well. All but mission commander Henry Hartsfield were first-time flyers, and mission specialist/remote manipulator arm operator Judy Resnik became the second American woman in space.

STS-41D Launch

After two scrubs and one long delay, Discovery finally launched on the fourth attempt. Credit: NASA

The crew released one satellite a day to start the mission: first the SBS for Satellite Business Systems, then a LEASAT (SYNCOM) for the United States Navy, and finally a TELSTAR for AT&T. After each deployment, the orbiter moved away before the time-delayed ignition of a boost motor sent the satellite to its ultimate orbit, some 35,400 kilometers (22,300 miles) high above the equator. The SBS and TELSTAR left the payload bay spinning like tops. The largest of the three, LEASAT was the first wide-body satellite designed for launch from the space shuttle; it rolled out on its side after a spring-loaded trigger pitched it out like a slow-motion Frisbee.


Before release, the 6 meter (20-foot) long LEASAT (SYNCOM) communications satellite lay behind the SBS satellite in the payload bay with its antennae folded against the 4.2 meter (14 foot) diameter top. Credit: NASA

Both the crew portrait and mission patch depicted the orbiter with an odd feature that looked like a tower rising from the payload bay. It was a ten-story, 13-feet wide, lightweight solar array, accordion-pleated for compact stowage – at that time the largest structure ever deployed in space. From the aft flight deck, the crew extended and retracted the array several times to observe its operation and stability. This new technology experiment used the shuttle as a test bed for evaluating large structures needed for a future space station.

Solar Array width=

NASA offered its corporate customers the opportunity to send their own payload specialist to conduct research in space. The first non-astronaut to fly on the shuttle, test engineer Charles Walker of McDonnell Douglas, tended to a commercial materials processing experiment of interest to the pharmaceutical industry. This program showcased the shuttle’s usefulness for commercial research into the feasibility of manufacturing in space.

Discovery checked out well in space. However, one surprise drew attention: an icicle about two feet long and a foot in diameter, composed of wastewater and urine, jutted out from a dump port just beyond the crew hatch, where it threatened to damage the open payload bay door. The crew rotated the orbiter to expose that side to direct sunlight and reduce the ice mass, then tapped it gently with the robotic arm to break it loose.

The successful STS-41D mission confirmed the shuttle’s versatility as a delivery vehicle, technology test bed, and research environment. More than 20 of Discovery’s 39 missions also involved deliveries, but this orbiter began its career serving multiple purposes at once.

Mission data
Date: August 30-September 5, 1984 Liftoff at 08:41:50 a.m. EDT
Duration: 6 days, 0 hours, 56 minutes
Profile: 28.5 deg. inclination, 201 miles (175 n. miles / 324 km) altitude, 97 orbits
Landing: Edwards Air Force Base, California at 06:37:54 a.m. PDT

Commander: Henry W. Hartsfield, Jr., USAF, his 2nd of three flights
Pilot: Michael L. Coats, USN, his 1st of three flights, all on Discovery
Mission Specialists:
Judith A. Resnik, electrical engineer, her 1st of two flights
Steven A. Hawley, astronomer-astrophysicist, his 1st of five flights, three on Discovery
Richard M. (Mike) Mullane, USAF, aeronautical engineer, his 1st of three flights
Payload Specialist: Charles D. Walker, McDonnell Douglas, test engineer, his 1st of three flights, two on Discovery

Valerie Neal is the Space Shuttle curator in the National Air and Space Museum’s Space History Department.

Discovery’s First Launch: Four Times on the Pad

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Thirty years ago Discovery ascended into space for the first time, after three thwarted launch attempts. Originally scheduled to lift off in June 1984, Discovery launched on August 30 as the twelfth space shuttle mission.

STS-41D Mission Patch

The emblem for Discovery’s first voyage in space paid tribute to its namesake ships of exploration, with stars to indicate the twelfth shuttle mission. Credit: NASA

The first attempt on June 25 was scrubbed at the routine T-20 minute hold due to error messages from the orbiter’s backup general purpose computer. One of five such units, this computer held the backup flight software in case the others failed, so leaving without it was a no-go.

NASA replaced the computer and recycled launch preparations for the next day. The June 26 attempt ended dramatically, in sudden quiet, two seconds after Discovery’s three main engines ignited. The engines had shut down—the first on-the-pad abort—just four seconds before the solid rocket boosters should ignite. If that happened, they would lift the under-powered orbiter off the pad to catastrophe.

Discovery’s crew felt and heard the main engines ignite and cease. Would the twin boosters ignite or would the preventive safety measures work? When the time passed for SRB ignition, crewmember Steve Hawley cut the tension by quipping, “Gee, I thought we’d be a lot higher at MECO!” [main engine cutoff upon reaching orbit].

The crew considered whether to start escape procedures but commander Hank Hartsfield decided to wait for instructions from launch control. It proved to be a good call, because minutes later an invisible hydrogen fire was detected at the base of the shuttle stack.

The launch pad safety team arrived to evacuate the disappointed crew, who then were drenched by fire suppression system water cascading over the pad. Discovery was rolled back from the launch pad for replacement of the troublesome main engine that had caused the shutdown. Over the summer, NASA canceled an upcoming mission and combined part of its payload with Discovery’s, sending the crew back for more training.

Crew of STS-41D

(left to right) Richard M. (Mike) Mullane, Steven A Hawley, Henry W. Hartfield, Jr., Michael L. Coats; (behind) Charles D. Walker and Judith A Resnik. Credit: NASA

Discovery returned to the launch pad for an August 29 attempt, but a flight software anomaly at T-7 minutes triggered a one-day postponement. After boarding Discovery four times, the crew felt more than ready to go on August 30. The countdown proceeded nominally until a private aircraft flew into Cape Canaveral’s restricted air space, causing a delay of almost seven minutes. At last, at 8:41:50 a.m. the main engines roared to life, and then the solid rocket boosters ignited. Discovery leapt off the pad on the first of its 39 successful missions.

Crew of STS-41D

After two scrubs and a two-month delay, Discovery finally launched on the fourth attempt. Credit: NASA

Crewmember Mike Mullane vividly describes Discovery’s four first launch attempts in Riding Rockets: The Outrageous Tales of a Space Shuttle Astronaut, published in 2006.

Valerie Neal is the Space Shuttle curator in the National Air and Space Museum’s Space History Department.

Remembering the Death of Lt. Joe Kennedy Jr. and America’s First Combat Drones

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Seventy years ago, on August 12, 1944, Lieutenant Joseph P. Kennedy Jr. perished in one of the first American fatalities associated with a pilotless aircraft, which we usually know today as a drone or unmanned aerial vehicle (UAV). The older brother of future president, John F. Kennedy, was taking part in an extraordinary secret war being waged across the English Channel with new generations of exotic weapons. Only a week after D-Day, the German Army began launching V-1 “buzz-bombs” from the French coast toward London and was preparing for a barrage of even more fantastical weapons, including the V-2 rocket and a super-cannon – the Hochdruckpumpe that constituted the third of their “V-weapons.”

Ensign Joseph P. Kennedy Jr.

Ensign Joseph P. Kennedy Jr., USN about two years before his death. John F. Kennedy Presidential Library and Museum

The Nazi leadership initially believed that V-2s and the Hochdruckpumpe could be made resistant to allied bombers by placing their infrastructure in vast fortified complexes of steel-reinforced concrete located in the Pas de Calais at Siracourt (V-1), Watten (V-2), Wizernes (V-2), and Mimoyecques (V-3). Allied aerial reconnaissance revealed these massive efforts of military engineering for what they were and the Allied Expeditionary Air Force headquarters ordered extensive bombing campaigns against the structures. These raids were highly disruptive to their construction, but they could not guarantee the effective destruction of the bunker complexes. The fortified sites were also surrounded by extremely heavy concentrations of anti-aircraft defenses and by the time of Kennedy’s death, hundreds of Allied aircraft had been lost attacking these and other V-weapon sites.

By the spring of 1944, Lt. Gen. James Doolittle, commander of the Eighth Air Force had ordered development of a joint Army Air Forces and Navy program to use pilotless “war-weary” bombers to carry vast quantities of high explosive that could unseat the foundations of the V-weapon complexes that were impervious to conventional bombs. The Army Air Forces contributed tired B-17s and the Navy offered up some of its own fatigued PB4Y-1s (the Navy version of the B-24D). Once modified with drone equipment, the B-17 drone (designated BQ-7) and the PB4Y-1 (designated BQ-8) were to be flown by remote control to the target using a mother ship, which had an operator who would use a television scope to monitor the controls.

A drone B-17

A drone B-17, seen a year after the dropping of the first atomic bomb, when it was being evaluated for use in sampling atomic clouds during nuclear tests. It is on a fourteen-hour unmanned flight from Hawaii to California under radio control from its mother ship. National Archives and Records Administration 342-FH-3A40606

Though run by the Army Air Forces, the Navy was essential to this program as it had far more experience with droning full-scale aircraft. The word “drone” in connection with pilotless aircraft originated with the U.S. Navy when it borrowed the British concept of using full-scale remotely piloted aircraft to teach the increasingly complex task of naval anti-aircraft gunnery. “Drone” was an acknowledgement of the program’s British “Queen Bee” origin. By the start of World War II, the Navy had begun regular training operations with full-scale target drones. The Army also pursued drone technology, but had gone a different route by focusing on small, low-cost types developed by the Hollywood actor, Reginald Denny.

Doolittle’s Project Aphrodite (Army) and Anvil (Navy) represented the marriage of the Navy’s pilotless aircraft experience with RCA’s advances in television. This marriage was an uneasy one with control and autopilot technology sufficiently immature to make the top secret program incredibly risky, but the perceived benefits justified the potential costs. Nonetheless, a human crew had to manually fly the aircraft off the ground to ensure that it did not go out of control on an Allied base or devastate a British population center. The two-man crew would then engage the autopilot, verify its functionality and bail out as the aircraft approached the British coast. It was for this incredibly hazardous undertaking that Kennedy volunteered.

The Aphrodite and Anvil operations against the four major V-weapon complexes began on August 4, 1944. Only the raid against the Wizernes site came even close to a success with the aircraft detonating near the construction. The Germans were suitably mystified as to what caused the aircraft to detonate with such force and why there were no traces of guns or a crew in the remnants. Unfortunately, one pilot was lost when one of the BQ-7s went out of control over the English countryside.

Wizernes V-2 complex under construction

The Wizernes V-2 complex under construction as seen by a low-flying Allied reconnaissance aircraft four days before the attempted August 4, 1944 Aphrodite mission. The massive reinforced concrete dome was camouflaged to blend in with the quarry in which it was located. The massive space beneath would have provided a shelter in which V-2 rockets could be positioned vertically, fueled and armed before being wheeled outside on a track for launching against England. National Archives and Records Administration 342-FH-3A19377

Kennedy, who volunteered for special duty with the newly formed Special Attack Unit One (SAU-1) from his regular anti-submarine patrol squadron, VPB-110 (which also provided the PB4Y-1s), was assigned to make the Navy’s first raid under Anvil. On August 12, Kennedy boarded PB4Y-1 #32771 with his copilot, Lt. Wilford J. Willy, to fly it to the coast where PV-1 mother ships would take over control to guide the drone to its target at Mimoyecques. Once airborne, Kennedy joined what was perhaps the most unusual American combat formation of World War II. It consisted of four P-51 Mustangs to provide top cover, two P-38s and two Mosquitos as weather and observation aircraft, a B-17 to act as a navigational pathfinder, a B-17 to act as a radio relay platform, and two PV-1s, one serving as the mother ship and another in reserve as a spare.

Around 6:20 pm, the formation passed eight miles southeast of Halesworth at an altitude of 610 meters (2,000 feet). Suddenly, 32771 and its nearly 10,000 kilograms (22,000 pounds) of the revolutionary Torpex high explosive detonated nearly destroying other aircraft in the formation. Kennedy and Willy had no chance of survival. Fortunately, their flight path had largely avoided populated areas and there were no casualties on the ground. The engines were the only pieces of the aircraft that survived in a recognizable form. A definitive cause was never found, though speculation has centered on inadequate electrical shielding that allowed premature activation of one of the Torpex detonators.

Navy enthusiasm soon evaporated for the mission and though one droned PB4Y-1 made it to its target, the service’s interest in continuing the program evaporated. The Army Air Forces continued Aphrodite missions with its B-17s until the beginning of 1945. None were successful. By that time, Allied forces had liberated all of the large V-weapon bunker complexes. None had become operational and in fact, the Germans appeared to realize that there was no chance that the sites could become operational once Allied intelligence appreciated their significance, so they used them as decoys and traps to draw bombing raids from the real infrastructure of the V-weapon campaigns. Even if this was not the case, conventional bombing had prevented their completion and a new generation of British heavy bombs – the Tallboys – proved to be capable of doing the damage that the drones could not. Sadly, Tallboys were already in operation a little over a month before Kennedy’s death and the Aphrodite drone program gained a legacy of being a tragic waste of resources.

A drone B-17

A 12,000-lb MC deep-penetration bomb (Bomber Command executive codeword ‘Tallboy’) is hoisted from the bomb dump to its carrier at Woodhall Spa, Lincolnshire, to be loaded into an Avro Lancaster of No. 617 Squadron RAF for a raid on the V-weapon site at Wizernes, France, 22 June 1944. 617 Squadron were unable to bomb the target on this occasion because of low cloud cover, but were to succeed two days later. Photo and text courtesy of the Imperial War Museums.

While Aphrodite and Anvil marked the end of the Eighth Air Force’s drone campaign against German V-weapon complexes and U-boat pens, the Navy did use the technology in the Pacific for its TDR-1 drones – a World War II antecedent to the MQ-1 Predator. The TDR-1s carried television cameras for guidance and carried bombs or torpedoes that were dropped remotely. Unlike the BQ-7 and -8s, human pilots did not need to bail out of them on operational missions. Unfortunately, the results of the TDR-1 operations were less than spectacular and World War II ended with drone technology being used almost exclusively for anti-aircraft training. A few years later, the Army Air Forces and Navy put the technology to the test when they flew B-17s and F6Fs through the radioactive clouds at Bikini during the first postwar nuclear detonations. Germany also used drone airplanes as guided missiles. By the time of the first Aphrodite missions, they had already been in use for over a month against shipping in the English channel that was supporting the Normandy beachhead.

Ju 88 bomber

Germany employed its own version of Aphrodite in the form of Mistel (piggyback) combinations in which an unmanned bomber like this Ju 88 would be packed with explosives and flown attached to a single seat fighter mother ship. Nearing the target, the fighter would separate and guide the drone to its target, though without benefit of a dedicated operator or television. Like the American combat drones, the Mistels were also only marginally successful. National Archives and Records Administration 342-FH-3A20006

Kennedy’s commanders recommended him for the Medal of Honor, but it was ultimately downgraded to a Navy Cross, which was also awarded to Lt. Willy. The Kennedy family was devastated. Many who knew him had been certain that Joe Kennedy, Jr. was destined for high public office before his tragic death. Such a high-profile loss threw the Aphrodite program into chaos and morale suffered. The program might well have been almost entirely forgotten, but the tragedy helped ensure that records and reminiscences of this pioneering operation were preserved. Kennedy’s death is a potent reminder of the many others who perished in testing or employing new technologies and whose memories were shrouded in the curtain of wartime secrecy.

Lt.(jg) John F. Kennedy and Ensign Joseph P. Kennedy Jr.

Lt.(jg) John F. Kennedy and Ensign Joseph P. Kennedy Jr., circa May, 1942. Frank Turgeon, Turgeon Studios via John F. Kennedy Presidential Library and Museum


Roger Connor is a museum specialist in the Aeronautics Department of the Smithsonian’s National Air and Space Museum.

Recalling a First Flight and Flying “Firsts”

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Roger Connor

Roger Connor, curator, National Air and Space Museum

When I was twelve, I had the opportunity to sit left seat on a Bell 206 JetRanger at Lunken Field in Cincinnati, Ohio. The pilot had me follow his movements on the cyclic while he hovered around the ramp. It was a transformative moment. I was hooked on helicopters and flying from that moment on. I started flying lessons when I was thirteen, soloed on my sixteenth birthday and earned my Private on my seventeenth.

- Roger Connor, curator, National Air and Space Museum

Dorothy Cochrane

Dorothy Cochrane, curator, National Air and Space Museum

I was at the old Page general aviation terminal at Dulles Airport (IAD), Virginia, to greet my brother-in-law who was flying into IAD from Trenton-Robbinsville Airport (N87) in New Jersey. He had recently joined a flying club up there and was eager to start building cross country time and share the fun with his brother Curt and me. Though I was working at the National Air and Space Museum, I had never flown in a general aviation aircraft. Peter arrived in the club’s four-seat Piper Cherokee Arrow making his first of many flights in it and later a T-tail Arrow to Dulles and even National Airport (DCA). Yes, those were the days when small general aviation aircraft could show up in the pattern at either airport and be merged into the arrivals. Still, it was best to consider the timing of your flight vis-a-vis airline traffic.

The next day Peter took Curt and me up for a beautiful flight over the Virginia countryside which began right at takeoff since Dulles was then still out in the middle of nowhere. Few buildings existed near the airport as the closest houses were in the little town of Herndon and the planned community of Reston which sat to the east along the only major road around, the Dulles Access Road. Dulles Airport had been carved out of farmland and one little community named Willard. It was our first low level (between 305 and 914 meters/1,000 and 3,000 feet) flight and we turned west to fly over Bull Run Mountain (378 meters/1,240 feet), Middleburg horse country, and up through the Thoroughfare Gap of the Blue Ridge Mountains at Front Royal into the Shenandoah Valley. The first airborne view of the Shenandoah River was amazing as it wound its way north to Harper’s Ferry, West Virginia, in lazy S-turns between the north-south mountain ridges. It was a gorgeous afternoon. On our return flight east, we watched the stunning concave roof of the Dulles terminal, designed by Eero Saarinen, come into view. Air Traffic Control (ATC) instructed Peter to plan to intercept the approach to Runway 19R and encouraged him several times to keep up his speed but the Arrow only cruised at 130 knots. As we approached the turn to final for 19R, ATC suddenly directed us to quickly continue east and turn onto the approach to 19L on the other side of the airport. We figured we might be in the way of airline traffic and indeed were. As we touched down in our little Piper Arrow on 19L, a Lockheed L-1011 Tristar airliner (which cruised at 500+ knots) touched down on 19R–simultaneous landings, thankfully on parallel runways. Being squashed on landing by the L-1011 would have certainly ruined our fine day of flying.

- Dorothy Cochrane, curator, National Air and Space Museum

And it wasn’t even Shark Week!

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While it might come as a bit of a shock, the topics of aviation and sharks rarely intersect here at the National Air and Space Museum. (Sure we have some nifty nose art, but admit it; connecting these two subjects in any way, shape, or form is really quite a stretch!) Luckily, just in time for Shark Week, the NASM Archives accessioned a new item into its collection: The Harry Bingham Brown Scrapbook (Acc. No. 2014-0038)!

Harry Bingham Brown

Harry Bingham Brown sits at the controls of his Wright biplane, circa 1913. Location unknown.

While rehousing this new accession I came across a newspaper article dated September 23, 1913, (unconfirmed, but possibly from the The Island Patriot of Charlottetown, Prince Edward Island) in which Harry Bingham Brown gives his account of a harrowing solo flight he completed while giving an aviation exhibition at the Puerto Rico Insular Fair:

Last February, for instance, he was down at Porto Rico [sic], giving an exhibition of flying for the Porto Rico Insular Fair. This was the first flight ever made there. He started to fly from the city of San Juan and out around Moro Castle [sic]. This castle is situated on a precipitous height and there is a sheer drop of one thousand feet from the top of the tower to the water. When several thousand feet in the air, he got caught in a whirlpool or eddy of air, caused by the great height of this castle. Although the machine was going at top speed, he tried to send it higher, but it was impossible. He found himself dropping, dropping, dropping. He felt, as it were, the seat on which he was sitting leaving him, and as if he was sitting on air for a short time. He thought that he was high enough to dodge the eddy, but he had mis-calculated his distance. He was steadily drawn by the aerial maelstrom until within two hundred feet of the water.

He said to himself “this is the last flight for me. I can do nothing, only sit and wait. I would not have minded meeting death in an ordinary way, but I could see beneath me the sharks, waiting to make a meal of me.”

(At this point the sharks were very numerous as the drainage from a packing factory passed by there and the “man eaters” were always on the wait for the offal.)

“Finally, when I thought it was all up with me,” said Mr. Brown, “the machine passed over the spot and I flew level, clear over the town just skimming the palace, I could see the crowds of Porto Ricans and Spaniards gazing up at me. I covered in that flight, about twenty-five or thirty miles and finally landed and got back to the fair grounds from where I started. If my motor had stopped, I would not be here to tell the story.”

It isn’t clear if the crowds of onlookers gazing up at Brown were aware of the pilot’s dread, but he, and his then fiancée, were certainly rattled by his brush with death. A few months after this story was printed, in the summer of 1914, Harry Bingham Brown retired from the aviation world at the behest of his fiancée. I’m sure we can all agree that love bites far less than a swarm of hungry sharks!

Advertisement for Frederick Rodman Law and Harry Bingham Brown

Advertisement for parachutist Frederick Rodman Law and pilot Harry Bingham Brown for a demonstration at the Insular Fair in San Juan, Puerto Rico, February 22nd through March 2nd, 1913. Copied from Aeronautics, Vol. 13, January 1913, p. 37.

While this ad might seem a bit stale and underwhelming by today’s standards, it’s important to remember that in the early days of aviation, adventuresome pilots, like Harry Bingham Brown, commonly brought the thrill of flight to curious crowds attending fairs, airshows, and a variety of other events.

With A. Leo Stevens, famous balloonist and aviation promoter, as his manager, Brown gained associations with other pioneering aviators, such as George W. Beatty, Harry Atwood, Ruth Law, and her husband, Frederick Rodman Law. With Brown at the controls of his Wright biplane, Rodman Law pulled off many daring parachute jumps. Stevens recognized how he could monetize the duo’s ability to awe crowds with the bold stunt, so their act was often publicized in magazines like Aeronautics.

Here are a few more glimpses of the photographs that were accessioned with Brown’s scrapbook:

Harry Bingham Brown

Daredevil pilot Harry Bingham Brown sits at the controls of his Wright biplane, smoking his cigar next to his plane’s gas tank, circa 1912. An unknown man sits to his left.

Harry Bingham Brown at Davis' Hotel

On the road again! Harry Bingham Brown (far right) and his entourage stretch their legs in front of Davis’ Hotel, circa 1912.

Harry Bingham Brown with Wright Biplane

Harry Bingham Brown sits at the controls of his Wright biplane, while a group of men help ready him for takeoff, circa 1913. Location unknown.

Interested in learning more about Harry Bingham Brown and other Early Birds of Aviation? Visitors can make an appointment to view our collections in the Archives’ Reading Room.
Amanda Buel is an archivist in the National Air and Space Museum’s Archives Department.