Daily Archives: August 11, 2017

11 August 1986

John Trevor Egginton, Chief Pilot, Westland Helicopters. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight test Engineers)
John Trevor Egginton, Chief Pilot, Westland Helicopters. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)

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

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. The horizontal tail plane and vertical fins from a Westland WG.30 were used to increase longitudinal stability and unload the tail rotor. In an effort to reduce aerodynamic drag, items such as steps, antennas and windshield wipers were removed.

Westland WG.13 Lynx G-LYNX, c/n 102.

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 both a record for helicopters in the 3,000 to 4,500 kilogram weight class, and the absolute record for helicopters in general. Thirty-one years later, these official speed records still stand.

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).³ 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).⁴ Both of these records were for helicopters in the 3,000–4,500 kilogram weight class.

Westland Lynx AH.1, G-LYNX. This is the World's Fastest Helicopter. (Westland)
Westland Lynx AH.1, G-LYNX. This is the World’s Fastest Helicopter. (Westland)

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.

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 helicopter's pilot seat. (The Helicopter Museum)
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 1842 (Helicopters with takeoff weight 3,000–4,000 kg)

² FAI Record File Number 1843 (Helicopters, General) [Absolute Record]

³ FAI Record File Number 1826

⁴ FAI Record File Number 1853

© 2017, Bryan R. Swopes

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11 August 1967

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. (U.S. Air Force)
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. (U.S. Air Force)
Air Force Cross
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-105F-10-RE Thunderchief 60-0464, 355th Tactical Fighter Wing, Takhli RTAFB. (U.S. Air Force)
Republic F-105D-10-RE Thunderchief 60-0464, 355th Tactical Fighter Wing, Takhli RTAFB. (U.S. Air Force)
Recoonaissance photograph of Paul Doumer Bridge, Hanoi, 12 August 1967. (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 on display at teh george H.W. Bush presidential Library, on loan from the United States Air Force art collection.
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)

© 2015, Bryan R. Swopes

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11 August 1967

Colonel Robin Olds, United States Air Force, winc Commander, 8th Tactical Fighter Wing, Ubon Ratchitani RTAFB.
Colonel Robin Olds, United States Air Force, Wing Commander, 8th Tactical Fighter Wing, Ubon-Rachitani RTAFB.
Air Force Cross
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, SCAT XXVII, at the National Museum of the United States Air Force, Wright-Patterson AFB, Ohio. (U.S. Air Force)
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)

© 2015, Bryan R. Swopes

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11 August 1967

Republic F-105D Thunderchief at Takhli TRAFB. (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
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
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

Recoonaissance photograph of Paul Doumer Bridge, Hanoi, 12 August 1967. (U.S. Air Force)
Reconnaissance photograph of Paul Doumer Bridge, Hanoi, 12 August 1967. (U.S. Air Force)

© 2015, Bryan R. Swopes

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11 August 1967

Republic F-105-1-RE Thunderchief 63-8311, 388th Tactical Fighter Wing, Korat RTAFB. (U.S. Air Force)
Republic F-105F-1-RE Thunderchief 63-8311, 388th Tactical Fighter Wing, Korat RTAFB. This is the type aircraft flown by LCOL McInerney and CAPT Shannon, 11 August 1967. (U.S. Air Force)
Colonel James Eugene McInerney, Jr., United States Air Force.
Colonel James Eugene McInerney, Jr., 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 James Eugene McInerney, Jr., (AFSN: 0-23452), United States Air Force, for extraordinary heroism in military operations against an opposing armed force as Pilot of an F-105 airplane in the 13th Tactical Fighter Squadron, 388th Tactical Fighter Wing, Korat Royal Thai Air Base, Thailand, 7th Air Force, in action as Leader of a flak suppression flight in action 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 McInerney suppressed six active surface-to-air missile sites defending a strategic highway and railroad bridge. Despite concentrated barrages of anti-aircraft fire and three missiles directed against his flight, Colonel McInerney displayed the highest degree of courageous leadership in destroying two missile sites and forcing the other four into sporadic operation. As a direct result of his actions, the strike force suffered no losses and imposed extensive damage to this vital target. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of hostile forces, Lieutenant Colonel McInerney reflected the highest credit upon himself and the United States Air Force.

Air Force Cross
Air Force Cross

General Orders: Department of the Air Force, Special Order GB-123 (March 27, 1968)

Action Date: August 11, 1967

Service: Air Force

Rank: Lieutenant Colonel

Company: 13th Tactical Fighter Squadron

Regiment: 388th Tactical Fighter Wing

Division: Korat Royal Thai Air Base, Thailand

 

Major Fred Shannon, United States Air Force
Major Fred Shannon, 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 Captain Fred Shannon (AFSN: 0-3100995), United States Air Force, for extraordinary heroism in military operations against an opposing armed force as an F-105 Electronics Warfare Officer of the 13th Tactical Fighter Squadron, 388th Tactical Fighter Wing, Korat Royal Thai Air Base, Thailand, in action in the lead aircraft of a flak suppression flight near Hanoi, North Vietnam, on 11 August 1967. On that date, Captain Shannon suppressed six active surface-to-air missile sites defending a strategic highway and railroad bridge. Despite concentrated barrages of anti-aircraft fire and three missiles directed against his flight, Captain Shannon displayed the highest degree of courageous leadership in destroying two missile sites and in forcing the other four into sporadic operation. As a direct result of his actions, the strike force suffered no losses and imposed extensive damage on this vital target. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of hostile forces, Captain Shannon reflected the highest credit upon himself and the United States Air Force.

Air Force Cross
Air Force Cross

General Orders: Department of the Air Force, Special Order GB-123 (March 27, 1968)

Action Date: 11-Aug-67

Service: Air Force

Rank: Captain

Company: 13th Tactical Fighter Squadron

Regiment: 388th Tactical Fighter Wing

Division: Korat Royal Thai Air Base, Thailand

© 2015, Bryan R. Swopes

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