Daily Archives: September 19, 2017

19 September 1969

The first prototype V-24 which first flew September 19, 1969.. (From "Russian Gunship Helicopters" by Yefim Gordon, Page 6)
The first prototype V-24. The stub wings are nearly horizontal. (Image from “Russian Gunship Helicopters,” by Yefim Gordon, Pen and Sword Aviation 2013, at Page 6)
Алфёров Герман Витальевич
Алфёров Герман Витальевич

19 September 1969: After four days of testing in a tethered hover, OKB Mil Design Bureau test pilot Herman V. Alferov made the first free flight of the prototype Mil Mi-24 attack helicopter, V-24.

Designed by a team led by Chief Project Engineer V. A. Kuznetsov, the Mi-24 used the drive train of the Mil Mi-8 Hip-B/C transport and Mi-14 Haze-A anti-submarine helicopters. It had a five-blade main rotor. a three-blade tail rotor and was equipped with retractable tricycle landing gear.

The Mi-24 (named “Hind” by NATO forces) was operated by a pilot and a weapons system operator seated in tandem configuration, with the pilot slightly offset to the left. The gunner is in the forward position. It differed from the American Bell AH-1G Cobra attack helicopter in that it could carry 8 troops or 1,500 pounds (680 kilograms) of cargo in a center fuselage compartment.

Prototype V-24 during test flight. (Unattributed)
Prototype V-24 during test flight. (Unattributed)

The Mi-24 is 17.5 meters (57 feet, 5 inches) long, 6.5 meters (21 feet 4 inches) high, with a main rotor diameter of 17.3 meters (56 feet, 9 inches). As is standard practice with Soviet helicopters, the five-blade main rotor turns clockwise as seen from above. (The advancing blade is on the left.) The tail rotor diameter is 3.9 meters (12 feet, 9½ inches).

The entire fuselage is tilted 2° 30′ (and thus, the transmission, mast and main rotor) to the right to counteract the rotor system’s translating tendency, and helps with high-speed stability.

In early versions, the tail rotor was mounted on the right side in pusher configuration and rotated counter-clockwise as seen from the left. (The advancing blade is above the axis of rotation.) Because of poor handling conditions, the tail rotor was changed to the left side in tractor configuration, with the advancing blade below the hub.

The helicopter’s empty weight is 8,500 kilograms (18,739 pounds) and loaded weight is 12,000 kilograms (26,455 pounds).

Power is supplied by two Isotov TV3-117 turboshaft engines rated at 1,700 shaft horsepower, or 2,200 horsepower for takeoff or one engine inoperative emergency operation.

The Mi-24 has a maximum speed of 335 kilometers per hour (208 miles per hour) and range of 450 kilometers (280 miles). The service ceiling is 4,500 meters (14,764 feet).

Armament consists of a turret-mounted Gryazev-Shipunov GSh-23 23mm cannon with 450 rounds of ammunition. Air-to-air and air-to-ground missiles are carried on pylons mounted under the helicopter’s stub wings.

More than 5,200 Mi-24 attack helicopters have been built, many of them exported. It is estimated that the cost of an individual helicopter is $32,500,000.

Prototype Mil Mi-24 helicopter, which first flew September 19, 1974. (Russian Helicopters photo)
“Red 77,” the prototype Mil Mi-24A helicopter. Note the anhedral of the wings. (Russian Helicopters photo)

Herman V. Alferov (Алфёров Герман Витальевич)—also known as G.V. Alferov or German V. Alferov—was born at Moscow, Russia, U.S.S.R., 11 April 1934. He graduated from the 3rd Moscow Flying Club in 1950, and from 1952 to 1954 was a flight instructor at the Central Aeroclub Chkalov. In 1954,  He graduated from the Voluntary Society of Assistance to the Air Force (DOSAAF) central flight technical school at Saransk in the Mordovian Autonomous Oblast.

Alferov was employed as a test pilot at OKB Mil in Moscow from 1954 until 1982, and remained with the flight test center until 1992. He participated in setting 11 Fédération Aéronautique Internationale (FAI) world helicopter records, and was named an Honored Test Pilot of the Soviet Union, 16 November 1973. In 1977, he was awarded the Order of the October Revolution, twice received the Order of the Red Banner of Labor, and twice the Order of the Red Star.

Herman V. Alferov died 19 January 2012.

Herman V. Alferov with a Mil Mi-4 helicopters.
Herman V. Alferov with a Mil Mi-4 helicopter, circa 1960. (Unattributed)

© 2016, Bryan R. Swopes

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19 September 1944

19 September 1944:

Air Ministry, 13th November, 1945.

     The KING has been graciously pleased to confer the VICTORIA CROSS on the undermentioned officer in recognition of most conspicuous bravery:—

Flight Lieutenant David Samuel Anthony LORD, D.F.C. (49149), R.A.F., 271 Sqn. (deceased).

Flight Lieutenant Lord was pilot and captain of a Dakota aircraft detailed to drop supplies at Arnhem on the afternoon of the 19th September, 1944. Our airborne troops had been surrounded and were being pressed into a small area defended by a large number of anti-aircraft guns. Air crews were warned that intense opposition would be met over the dropping zone. To ensure accuracy they were ordered to fly at 900 feet when dropping their containers.

While flying at 1,500 feet near Arnhem the starboard wing of Flight Lieutenant Lord’s aircraft was twice hit by anti-aircraft fire. The starboard engine was set on fire. He would have been justified in leaving the main stream of supply aircraft and continuing at the same height or even abandoning his aircraft. But on learning that his crew were uninjured and that the dropping zone would be reached in three minutes he said he would complete his mission, as the troops were in dire need of supplies.

By now the starboard engine was burning furiously. Flight Lieutenant Lord came down to 900 feet, where he was singled out for the concentrated fire of all the anti-aircraft guns. On reaching the dropping zone he kept the aircraft on a straight, and level course while supplies were dropped. At the end of the run, he was told that two containers remained.

Although he must have known that the collapse of the starboard wing could not be long delayed, Flight Lieutenant Lord circled, rejoined the stream of aircraft and made a second run to drop the remaining supplies. These manoeuvres took eight minutes in all, the aircraft being continuously under heavy anti-aircraft fire.

His task completed, Flight Lieutenant Lord ordered his crew to abandon the Dakota, making no attempt himself to leave the aircraft, which was down to 500 feet. A few seconds later, the starboard wing collapsed and the aircraft fell in flames. There was only one survivor, who was flung out while assisting other members of the crew to put on their parachutes.

By continuing his mission in a damaged and burning aircraft, descending to drop the supplies accurately, returning to the dropping zone a second time and, finally, remaining at the controls to give his crew a chance of escape, Flight Lieutenant Lord displayed supreme valour and self-sacrifice.

Fourth Supplement to The London Gazette, 13 November 1945, No. 37347 at Page 5533.

The Victoria Cross
Flight Lieutenant David Samuel Anthony Lord, D.F.C., Royal Air Force.

David Samuel Anthony Lord was born in the city of Cork, Ireland, 18 October 1913, the son of Warrant Officer Samuel Beswick Lord, Royal Welsh Fusiliers, and Mary Ellen Lord. He was raised in Ireland, British India and Wales.

David and his brother Frank enlisted in the Royal Air Force in 1936. He trained as a pilot at RAF Uxbridge, and on completion was appointed a Flight Sergeant.

Flight Sergeant Lord was assigned to No. 31 Squadron, a bomber/transport unit then based at Lahore, Punjab, in what is now Pakistan. The squadron was equipped with Vickers Type 264 Valentia biplane transports, but early in World War II these were replaced by more modern Douglas DC-2s. The squadron flew in Iraq, Syria, Iran and Eqypt. In June 1941, Lord’s Dakota was severely damaged by attacking German fighters and he was forced to crash land. Along with his passengers and crew, Lord safely returned to friendly lines.

In 1942, Temporary Warrant Officer Lord returned to operations in India, where he flew “the Hump,” the aerial supply line to China over the Himalaya Mountains. He was appointed to the commissioned rank of Pilot Officer on probation (emergency), 12 May 1942, and then promoted to Flying Officer.

Douglas Dakota Mk.III, FL512, of No. 31 Squadron in Burma, circa 1944.

In The London Gazette, 16 July 1943, it was announced that Flying Officer Lord had awarded the Distinguished Flying Cross.

Flying Officer Lord was reassigned to No. 271 Squadron, based at RAF Down Ampney, Wiltshire, England, flying the Dakota Mk.III. He was promoted to Flight Lieutenant, 2 June 1944, and flew in the airborne assault of Normandy, on the night of 5–6 June 1944. On 1 September 1944, Flight Lieutenant Lord was commended by George VI for valuable service in the air.

Only one member of Lord’s crew, the navigator, Flight Lieutenant Harold King, survived. The others were buried next to the wreck of their Dakota, at Wolfheze, just northeast of Arnhem, The Netherlands. Following the war, their remains were moved to the Arnhem Oosterbeek War Cemetery.

Flight Lieutenant King was captured and spent the remainder of the war at Stalag Luft I, a prisoner of war camp at Barth, Western Pomerania. When he was repatriated, he reported what had happened on the 19 September 1944 mission.

After investigation, the Victoria Cross was posthumously awarded to Flight Lieutenant David Samuel Anthony Lord, D.F.C. He was the only member of the Royal Air Force Transport Command to be awarded the Victoria Cross during World War II.

Flight Lieutenant David S.A. Lord’s medals in the Lord Ashcroft Gallery, Imperial War Museum. (Left to right, Victoria Cross; Distinguished Flying Cross; India General Service Medal 1936 with Northwest Frontier Clasp; 1939–1945 Star; Africa Star; Burma Star; France and Germany Star; Defence Medal; War Medal 1939–1945 with Bronze Oak Leaf.)

Flight Lieutenant Lord’s airplane was a Douglas Dakota Mk.III, the Royal Air Force designation for the U.S. Army Air Forces’ Douglas C-47A Skytrain. It was built in January 1944 at the Midwest City Douglas Aircraft Plant, adjacent to the Oklahoma City Air Depot (now, Tinker Air Force Base) at Oklahoma City, OK. Douglas gave it the company serial number 12383. It was a C-47A-5-DK Skytrain with the serial number 42-92568. The airplane was one of the 5,354 built by Midwest City. The plant turned out 13 C-47s each day and produced more than half of the Skytrains built during World War II.

42-92569 was delivered to the U. S.A.A.F. on 24 January 1944. The Skytrain was turned over to Royal Air Force at Dorval Airport, Montreal, Quebec, Canada, 4 February 1944, and assigned the RAF identification KG 374. It was then flown across the North Atlantic to the United Kingdom, 17 May 1944. KG 374 was assigned to No. 271 Squadron, 10 June 1944, and the squadron identification YS L.

A Battle of Britain Memorial Flight Douglas Dakota painted in the markings of Flight Lieutenant Davis Samuel Anthony Lord’s KG 734.

The Douglas C-47 Skytrain is an all-metal, twin-engine, low-wing monoplane transport with retractable landing gear. It was operated by a minimum flight crew of two pilots, a navigator and a radio operator. The airplane’s control surfaces are covered with doped-fabric. The primary differences between the civil DC-3 and military C-47 airframes was the addition of a cargo door on the left side of the fuselage and a strengthened floor in the cabin.

The C-47 is 64 feet, 5½ inches (19.647 meters) long with a wingspan of 95 feet (28.956 meters) and height of 17 feet (5.182 meters). Empty weight of the C-47A is 17,257 pounds (7,828 kilograms) and the maximum takeoff weight is 29,300 pounds (13,290 kilograms).

The C-47A was powered by two 1,829.39-cubic-inch-displacement (29.978 liter) air-cooled, supercharged R-1830-92 (Pratt & Whitney Twin Wasp S1C3-G) two-row 14-cylinder radial engines with a compression ratio of 6.7:1. These were rated at 1,060 horsepower at 2,550 r.pm., up to 7,500 feet (2,286 meters), maximum continuous power, and 1,200 horsepower at 2,700 r.p.m. at Sea Level for takeoff. Each engine drives a three-bladed Hamilton Standard Hydromatic constant-speed full-feathering propeller with a diameter of 11 feet, 6 inches (3.505 meters) through a 16:9 gear reduction. The R-1830-92 is 48.19 inches (1.224 meters) long, 61.67 inches (1.566 meters) in diameter, and weighs 1,465 pounds (665 kilograms).

The C-47 has a cruising speed of 185 miles per hour (298 kilometers per hour) at 10,000 feet (3,048 meters) and service ceiling of 24,100 feet (7,346 meters).

The C-47 could carry 6,000 pounds (2,722 kilograms) of cargo, or 28 fully-equipped paratroopers. Alternatively, 14 patients on stretchers could be carried, along with three attendants.

KG 374 crashed at Wolfheze, The Netherlands, about 6 miles (10 kilometers) northwest of Arnhem. Fragments of the wreckage are in the collection of the Imperial War Museum.

Douglas C-47 Skytrains at the Midwest City Douglas Aircraft Plant. Douglas produced 13 C-47s a day at this facility. (U.S. Air Force)

© 2017, Bryan R. Swopes

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19 September 1902

Stanley Spencer’s airship over London.

19 September 1902:

The New York Times reported:

AN AIRSHIP TRAVELS NEARLY THIRTY MILES

Stanley Spencer, the Aeronaut, Astonishes Londoners.

He Starts from the Crystal Palace and Descends Near Harrow—Makes Various Detours.

     LONDON, Sept. 20.—Stanley Spencer, the well-known English aeronaut, yesterday successfully accomplished a remarkable flight over London in an airship of his own invention. It is estimated that his ship traveled nearly thirty miles.

     From the observations of those on the ground, Stanley seemed to have complete control of the vessel. He started from the Crystal Palace at 4:15 o’clock in the afternoon, and descended three hours later near Harrow. The route taken by the aeronaut was over Streatham, Clapham Common and the smoky south side of the metropolis, across the Thames, over the populous Chelsea district, and across Kensington and Earl’s Court out to Harrow. Spencer executed an easy descent at the little village of Eastcote.

     Spencer has recently been experimenting with his vessel at the Crystal Palace. Finding the conditions suitable, he suddenly decided to start on his dangerous voyage yesterday afternoon, and the usual crown of palace spectators gave him a hearty send-off. The airship at once rose to a height of about 300 feet. After traveling for about a mile with practically no deviation in course, Spencer made various detours, and seemed able to steer his ship as easily as a torpedo boat. Near Clapham Common he came fairly close to the ground for the purpose of manoeuvring. The appearance of the air craft created intense astonishment among the thousands of persons in the streets over whose heads the aeronaut passed.

      Pericval Spencer, referring to his brother’s trip, said it exceeded the longest trip of Santos-Dumont by nearly twenty miles.

     Spencer’s airship has a blunt nose and tail, and does not taper to a cigar-like point, like the airships of Santos-Dumont. In general outline it has the appearance of a whale. The bag, which is seventy-five feet long, contains 20,000 cubic feet of hydrogen. The frame is built of bamboo, and the propeller is in front, instead of behind, as is the case with Santos-Dumont’s vessels.

     The motive power of Spencer’s machine is a petroleum motor of about 30 horse power, and the machinery is controlled by electric buttons. The extreme speed of the new airship in calm weather is about fifteen miles an hour.

     The machine accommodates only one person, and its entire weight is about 600 pounds. Special features of the airship are devices to avoid pitching and dipping.

_______

     Stanley Spencer is the aeronaut who, on Sept. 15, 1898, made an ascension from the Crystal Palace, and afterward claimed that he had reached the highest elevation that had yest been attained.

     Scientists denied his assertion, pointing out that Coxwell and Glaisher, in September, 1862, reached an altitude of 37,000 feet, while Mr. Spencer only claimed that he had reached an altitude of 27,500 feet.

The New York Times, 20 September 1902

Mr. Stanley Spencer, with his family.

© 2015, Bryan R. Swopes

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