Signal Corps Dirigible No. 1 at Fort Myer, Virginia, 1908 (U.S. Army)
12 August 1908: Test flights begin for Signal Corps Dirigible No. 1 at Fort Myers, Virginia, with Thomas Scott Baldwin as pilot and Glenn Hammond Curtiss as flight engineer.
Brigadier General James Allen, Chief Signal Officer, 1906–1913. (U.S. Army)
On 1 August 1907, Brigadier General James Allen, Chief Signal Officer, United States Army, issued a directive establishing the Aeronautical Division within the Signal Corps. Captain Charles Chandler was the officer in charge. Specifications were published in Signal Corps Bulletin No. 5, soliciting bids for both lighter- and heavier-than air vehicles. There were 41 responses. Plans were submitted and a board of officers selected plans for those that seemed most practical.
The lighter-than-air craft was required to be a self-propelled dirigible (a “directable” balloon) able carry two persons and to be able to travel at 20 miles per hour (32.2 kilometers per hour). Thomas Scott Baldwin’s proposal was selected. (The Wright brothers’ Military Flyer was selected as the heavier-than-air winner on 2 August 1909, and designated Signal Corps Airplane No. 1.)
Signal Corps Dirigible No. 1 (SC-1) emerges from its shed at Fort Myer, Virginia, 3 August 1908. (Carl Harry Claudy/NASM-Claudy-205)
On 3 August 1908, Baldwin No. 8 was presented to the Army for trials. Although the the Baldwin No. 8 reached an average speed of just 19.61 miles per hour (31.56 kilometers per hour). It demonstrated the required endurance of two hours, averaging 14 miles per hour (22.5 kilometers per hour). Although the airship’s speed was short of the requirement, on 5 August, the Army purchased it from Baldwin for $5,737.59. The airship was designated Signal Corps Dirigible No. 1.
Contemporary sources give the airship’s dimensions as being 96 feet (29.26 meters) long with a maximum diameter of 19 feet, 6 inches (5.94 meters). The envelope was made of two layers of silk fabric separated by a layer of vulcanized rubber, and supported by 30 wooden frames. Buoyancy was provided by hydrogen gas. The envelope’s volume was approximately 20,000 cubic feet (566 cubic meters).
An open girder beam gondola (or “car”) built of spruce was suspended beneath the balloon. The gondola was 66 feet (20.12 meters) long with a 2½ feet × 2½ feet (0.76 × 0.76 meters) cross section. A water-cooled Curtiss-built inline four-cylinder gasoline engine was mounted at the front end of the gondola. The engine produced 20 horsepower and drove the tractor propeller through a steel drive shaft at 450 r.p.m. The two-bladed spruce propeller had a diameter of 10 feet, 8 inches (3.25 meters) and pitch of 11 feet (3.35 meters).
A two-plane “box-kite” canard elevator unit behind the engine provided control for pitch. The pilot was located behind the control surfaces. Another crew member was at the rear of the gondola, followed by a fixed cruciform stabilizer unit.
The dirigible had a lifting capacity of 1,350 pounds (612.4 kilograms). The payload was 500 pounds (226.8 kilograms).
The U.S. Army’s first aviators, Lieutenants Benjamin D. Fulois, Thomas Etholen Selfridge and Frank P. Lahm were taught to fly the airship. Lahm and Fulois made the first flight of an all-Army crew on 26 August.
Signal Corps Dirigible No. 1 was assigned to the Signal Corps Post at Fort Omaha, Nebraska, where the Army had a balloon factory. It was operated there until 1912. The airships envelope needed to be replaced, and unwilling to spend money for that, the airship was sold.
Second Lieutenants Lahm and Fulois flying Signal Corps Dirigible No. 1 (SC-1) at Fort Myer, Virginia, 28 August 1908. (U.S. Air Force)
11 August 1986: A modified factory demonstration Westland Lynx AH.1 helicopter, civil registration G-LYNX, piloted by Chief Test Pilot John Trevor Egginton and Flight Test Engineer Derek J. Clews, set a Fédération Aéronautique Internationale (FAI) Absolute Record for Speed for helicopters over a straight 15/25 km course with an average speed of 400.87 kilometers per hour (249.09 miles per hour) over a measured 15 kilometer (9.32 miles) course near Glastonbury on the Somerset Levels and Moors, Southwest England.¹ ² ³
Westland WG.13 Lynx G-LYNX, c/n 102. (Vertipedia)
The helicopter was equipped with experimental BERP main rotor blades and two Rolls Royce Gem 60 turboshaft engines with digital electronic fuel control and water-methanol injection, producing 1,345 shaft horsepower, each. The engines’ exhausts were modified to provide 600 pounds of thrust (2,669 Newtons). The horizontal tail plane and vertical fins from a Westland WG.30 were used to increase longitudinal stability and to unload the tail rotor in forward flight. In an effort to reduce aerodynamic drag, items such as steps, antennas and windshield wipers were removed.
During the speed runs, the main rotor blade tips reached a speed of 0.97 Mach.
Four passes over the course were made at an altitude of 500 feet (150 meters). The results of the two best successive passes were averaged. This set records for helicopters; helicopters in the 3,000–4,500 kilogram weight class; and an Absolute World Record for Rotorcraft. Thirty-two years later, these official speed records still stand.
Westland Lynx AH.1, G-LYNX. This is the World’s Fastest Helicopter. (Westland)
Another Westland AH.1 Lynx, flown by then Westland Chief Pilot Leonard Roy Moxham and Michael Ball, had set two FAI World Records for Speed, 20 and 22 June 1972. Flying over a straight 15/25 kilometer course, the Lynx averaged 321.74 kilometers per hour (199.92 miles per hour).⁴ Two days later, the Lynx flew a closed 100 kilometer circuit at an average speed of 318.50 kilometers per hour (197.91 miles per hour).⁵ Both of these records were for helicopters in the 3,000–4,500 kilogram weight class.
Westland WG.13 c/n 102 made its first flight in May 1979. After setting the speed record, G-LYNX was used as a demonstrator and as a test platform, before finally being retired in 1992. Beginning in 2007, AgustaWestland restored the Lynx to its speed record configuration, withe more than 25,000 man hours expended on the project.
G-LYNX was unveiled on 11 August 2011, the 25th anniversary of the world record flight. Today, it is on display at The Helicopter Museum, Weston-super-Mare, Somerset, South West England.
On 25 September 2014, the Institution of Mechanical Engineers bestowed its Engineering Heritage Award on G-LYNX. John Wood, chairman of the Institution said,
“The G-Lynx helicopter is a remarkable example of British engineering and vision. It is a testament to the cutting-edge modifications made to the helicopter, that the world speed record still stands 28 years later.
“This award is in recognition of all the people in making the 1986 record possible, but also to the AgustaWestland apprentices who restored the helicopter in 2011 and the Helicopter Museum who continue to maintain the craft in such excellent condition.”
The Engineering Heritage Award was accepted by Elfan Ap Rees, founder of the Helicopter Museum, and John Trevor Egginton, pilot of the world record helicopter.
John Trevor Egginton, O.B.E., A.F.C., FRAeS. Chief Test Pilot, Westland Helicopters. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight test Engineers)
John Trevor Egginton was born in Birmingham, England, 14 March 1933. He was the second child of Alfred T. Egginton and Emma Hammond Egginton. John attended the George Dixon Grammar School at Edgbaston, a suburb of Birmingham.
In 1951, Egginton joined the Royal Air Force. On 7 May 1952, he was appointed a cadet pilot, with date of service from 2 January 1952. He was sent to the United States for flight training, and returned to England aboard RMS Queen Elizabeth, arriving at Southampton, 17 November 1953. He flew the Canadair CL-13 Sabre Mk.4 with No. 67 Squadron and the Hawker Hunter with Nos. 222 and 63 Squadrons.
In December 1956, Pilot Officer Egginton married Miss Joan Mary Wheeler at Bromsgrove, near Birmingham. They would have three children, Jane, Michael and Frazer.
Pilot Officer Egginton was promoted to the rank of Flight Lieutenant, 2 October 1957. His commission was made permanent, 31 August 1961.
Following an overseas tour of duty in the Colony of Aden, Flight Lieutenant Egginton transitioned to helicopters, training in the Bristol Sycamore. He was then assigned to No. 22 Squadron at RAF Chivenor, on the north coast of Devon, as a search and rescue pilot. The squadron was equipped with the Westland Whirlwind HAR.2, a licensed variant of the Sikorsky S-55. In August 1962, the unit upgraded to the turboshaft-powered Whirlwind HAR.10.
On the night of 2–3 November 1962, the French fishing trawler Jeanne Gougy, with a crew of 18 men, went aground at Land’s End, Cornwall. A Royal Air Force helicopter from RAF Chivenor and a lifeboat from the Sennen Cove life boat station went to the scene. The lifeboat was unable to approach the wreck because of the heavy weather, but recovered two dead fishermen offshore. The helicopter also recovered a body. No other sailors were seen, the the two rescue craft returned to there bases with the remains.
Later that morning, observers from the shore saw several men inside the Jeanne Gougy‘s pilot house. A helicopter and the Penlee lifeboat, Soloman Brown, hurried to the scene, but conditions were still too extreme for the lifeboat to approach the trawler.
The Westland Whirlwind, flown by Flight Lieutenants John Lorimer Neville Canham, D.F.C., and John Trevor Egginton, hovered over the capsized fishing trawler while the winch operator, Sergeant Eric Charles Smith, was lowered to the ship’s pilot house. A rescue line was also rigged to the nearby rocks. Sergeant Smith rigged two men for hoisting to the hovering helicopter and continued searching for additional survivors. Four sailors were rescued by the line to the shore. 12 of the fishermen did not survive.
Westland Whirlwind HAR.10, No. 22 Squadron, hoists a man from the fishing trawler Jeanne Gougy at Armoured Knight Rock, Land’s End, Cornwall, England, 3 November 1962. (RNLI Penlee Lifeboat Station)Sergeant Eric Smith, RAF, is lowered to the wreck of Jeanne Gougy, 3 November 1962. (BFI)
For his bravery during the rescue, Sergeant Smith was awarded the George Medal by Queen Elizabeth II. He was also awarded the Silver Medal of the Société des Hospitalers Sauveteurts Bretons.
The President of the French Republic, Charles de Gaulle, conferred the honor of Chevalier du Mérite Maritime on Flight Lieutenant Canham, Flight Lieutenant Egginton, and Sergeant Smith. On 13 June 1964, Egginton was awarded the Air Force Cross.
In 1965, Flight Lieutenant Egginton attended the Empire Test Pilots’ School at RAF Boscombe Down. On graduation, he was assigned as a helicopter test pilot with D Squadron (now the Rotary Wing Test and Evaluation Squadron, or RWTES). In 1969, Egginton returned to the Test Pilots’ School as a helicopter flight instructor.
Squadron Leader Egginton retired from the Royal Air Force in 1973. He was awarded the Queen’s Commendation for Valuable Service in the Air, 2 June 1973. (London Gazette No. 45984 at Page 6463)
Egginton joined Westland Helicopters at Yeovil as deputy chief test pilot, and later became the company’s chief test pilot. He from Westland retired after 15 years.
In the 1989 New Year’s Honours List, Squadron Leader Egginton was appointed an Officer of the Most Excellent Order of the British Empire (O.B.E.):
Squadron Leader John Trevor Egginton, O.B.E., A.F.C., F.R.Ae.S., Q.C.V.S.A., Chevalier du Mérite Maritime, died at his home in Yeovil, 23 November 2014. He was 81 years of age.
In April 2013, Trevor Egginton spoke to members of the Empire Test Pilots’ School at The Helicopter Museum, Weston-super-Mare. In this photograph, Mr. Egginton is seated in the World Record Helicopter’s pilot seat. (The Helicopter Museum)
¹ FAI Record File Number 11659: Rotorcraft, Absolute Record for Speed Over a 15–25 Kilometer Straight Course
² FAI Record File Number 1842: Rotorcraft, Helicopters, Subclass E-1e, 3,000–4,500 kilograms (6,613.9–9,920.8 pounds), takeoff weight
³ FAI Record File Number 1843: Rotorcraft, Helicopters, Subclass E-1
⁴ FAI Record File Number 1826: Rotorcraft, Helicopters, Subclass E-1e
⁵ FAI Record File Number 1853: Rotorcraft, Helicopters, Subclass E-1e
Colonel Robert M. White, United States Air Force, Deputy Commander for Operations, 355th Tactical Fighter Wing, Takhli RTAFB, 1967, with other Republic F-105 Thunderchief pilots. Colonel White is the third from the left. (Left to right) Robert Lindsay, Nelson McDonald, Robert M. White , Malcolm Winter, John Piowaty. (U.S. Air Force)Air Force Cross
The President of the United States of America, authorized by Title 10, Section 8742, United States Code, takes pleasure in presenting the Air Force Cross to Colonel Robert M. White (AFSN: 0-24589A), United States Air Force, for extraordinary heroism in military operations against an opposing armed force as an F-105 Mission Commander and Pilot of the 355th Tactical Fighter Wing, Takhli Royal Thai Air Base, Thailand, in action near Hanoi, North Vietnam, on 11 August 1967. On that date, Colonel White led the entire combat force against a key railroad and highway bridge in the vicinity of Hanoi. In spite of 14 surface-to-air missile launches, MiG interceptor attacks, and intense anti-aircraft artillery fire, he gallantly led the attack. By being the first aircraft to dive through the dark clouds of bursting flak, Colonel White set an example that inspired the remaining attacking force to destroy the bridge without a single aircraft being lost to the hostile gunners. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of hostile forces, Colonel White reflected the highest credit upon himself and the United States Air Force.
Action Date: 11-Aug-67
Service: Air Force
Rank: Colonel
Company: Deputy Commander for Operations
Regiment: 355th Tactical Fighter Wing
Division: Takhli Royal Thai Air Base, Thailand
Republic F-105D-10-RE Thunderchief 60-0464, 355th Tactical Fighter Wing, Takhli RTAFB. (U.S. Air Force)Reconnaissance photograph of Paul Doumer Bridge, Hanoi, 12 August 1967. (U.S. Air Force)Doumer Bridge, by Keith Ferris, oil on panel, depicts Col. Robert M. White leading the strike against the Paul Doumer Bridge, 11 August 1967. This painting is in the United States Air Force Art Collection. (George Bush Presidential Library and Museum)
Colonel Robin Olds, United States Air Force, Wing Commander, 8th Tactical Fighter Wing, Ubon-Rachitani RTAFB.Air Force Cross
The President of the United States of America, authorized by Title 10, Section 8742, United States Code, takes pleasure in presenting the Air Force Cross to Colonel Robin Olds (AFSN: 0-26046), United States Air Force, for extraordinary heroism in military operations against an opposing armed force while serving as Strike Mission Commander in the 8th Tactical Fighter Wing, Ubon Royal Thai Air Base, Thailand, against the Paul Doumer Bridge, a major north-south transportation link on Hanoi’s Red River in North Vietnam, on 11 August 1967. On that date, Colonel Olds led his strike force of eight F-4C aircraft against a key railroad and highway bridge in North Vietnam. Despite intense, accurately directed fire, multiple surface-to-air missile attacks on his force, and continuous harassment by MiG fighters defending the target, Colonel Olds, with undaunted determination, indomitable courage, and professional skill, led his force through to help destroy this significant bridge. As a result the flow of war materials into this area was appreciably reduced. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of hostile forces, Colonel Olds reflected the highest credit upon himself and the United States Air Force.
Action Date: 11-Aug-67
Service: Air Force
Rank: Colonel
Regiment: 8th Tactical Fighter Wing
Division: Ubon-Rachitani Royal Thai Air Base, Thailand
Brigadier General Robin Olds’ McDonnell F-4C-24-MC Phantom II 64-0829, SCAT XXVII, at the National Museum of the United States Air Force, Wright-Patterson AFB, Ohio. (U.S. Air Force)
Republic F-105D Thunderchief at Takhli RTAFB. This is the type aircraft flown by LCOL Schurr against the Paul Doumer Bridge, 11 August 1967. (U.S. Air Force)Colonel Harry W. Schurr, United States Air Force
The President of the United States of America, authorized by Title 10, Section 8742, United States Code, takes pleasure in presenting the Air Force Cross to Lieutenant Colonel Harry W. Schurr (AFSN: 0-41901), United States Air Force, for extraordinary heroism in connection with military operations against an opposing armed force as commander of a strike force of twenty F-105 Thunderchiefs of the 469th Tactical Fighter Squadron, 388th Tactical Fighter Wing, Korat Royal Thai Air Base, Thailand, in action against a heavily defended target in North Vietnam on 11 August 1967. On that date, though intense, accurately directed hostile fire had damaged his aircraft prior to reaching the target, Colonel Schurr, with undaunted determination, indomitable courage, and professional skill, led the strike in a devastating attack against a key railroad and highway bridge. One span was destroyed and others heavily damaged. As a result, the flow of war materials into this area was appreciably reduced. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of the hostile force, Colonel Schurr has reflected the highest credit upon himself and the United States Air Force.
Air Force Cross
General Orders: Department of the Air Force, Special Order GB-427 (November 30, 1967)
Action Date: 11-Aug-67
Service: Air Force
Rank: Lieutenant Colonel
Company: 469th Tactical Fighter Squadron
Regiment: 388th Tactical Fighter Wing
Division: Korat Royal Thai Air Base, Thailand
Reconnaissance photograph of Paul Doumer Bridge, Hanoi, 12 August 1967. (U.S. Air Force)
