11 December 1959: Brigadier General Joseph H. Moore, U.S. Air Force, Wing Commander, 4th Tactical Fighter Wing at Seymour Johnson Air Force Base, North Carolina, set a Fédération Aéronautique Internationale (FAI) World Speed Record when he flew a Republic F-105B-20-RE Thunderchief, serial number 57-5812, over a closed 100-kilometer (62.137 miles) closed course at Edwards Air Force Base, California. The Thunderchief averaged 1,878.67 kilometers per hour (1,167.35 miles per hour).¹ General Moore’s fighter bomber was a standard production aircraft and it was armed with a full load of ammunition for the M61 cannon.
FAI Record File Num #8873 [Direct Link]
Status: ratified – retired by changes of the sporting code
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Speed over a closed circuit of 100 km without payload
Performance: 1 878.67 km/h
Course/Location: Edwards AFB, CA (USA)
Claimant Joseph H. Moore (USA)
Aeroplane: Republic F-105B
Engine: 1 Pratt & Whitney J-75
The F-105 was the largest single-seat, single-engine combat aircraft in history. It was designed as a tactical nuclear strike aircraft and fighter-bomber. The fuselage of the F-105B incorporated the “area rule” which gave the Thunderchief its characteristic “wasp waist” shape. The Thunderchief was 63 feet, 1 inch (19.228 meters) long with a wingspan of 34 feet, 11 inches (10.643 meters). It was 19 feet, 8 inches high (5.994 meters). wings were swept 45° at 25% chord. The angle of incidence was 0° and there was no twist. The wings had 3° 30′ anhedral. The total wing area was 385 square feet (35.8 square meters). The F-105 had an empty weight of 25,855 pounds (11,728 kilograms) and a maximum takeoff weight of 50,000 pounds (22,680 kilograms).
Early production F-105Bs had the Pratt & Whitney J75-P-5 axial-flow turbojet engine. Beginning with the Block 20 aircraft, the more powerful J75-P-19 was installed. The -19 engine was retrofitted to the earlier aircraft. The Thunderchief was powered by one Pratt & Whitney J75-P-19W engine. The J75 is a two-spool axial-flow afterburning turbojet with water injection. It has a 15-stage compressor section (8 low- and and 7 high-pressure stages) and 3-stage turbine section (1 high- and 2 low-pressure stages.) The J75-P-19W is rated at 14,300 pounds of thrust (63.61 kilonewtons), continuous power; 16,100 pounds (71.62 kilonewtons), Military Power (30-minute limit); and Maximum Power rating of 24,500 pounds (108.98 kilonewtons) with afterburner (15-minute limit). The engine could produce 26,500 pounds of thrust (117.88 kilonewtons) with water injection, for takeoff. The J75-P-19W is 21 feet, 7.3 inches (6.586 meters) long, 3 feet, 7.0 inches (1.092 meters) in diameter, and weighs 5,960 pounds (2,703 kilograms).
Armament consisted of one 20 mm General Electric M61 Vulcan six-barreled Gatling gun with 1,080 rounds of ammunition. It had an internal bomb bay and could carry bombs, missiles or fuel tanks on under wing and centerline hardpoints. The maximum bomb load consisted of four 750-pound (340 kilogram) bombs. For tactical nuclear strike missions, the F-105B could carry one Mk-28 “special store” in the internal bomb bay.
The F-105B had a maximum speed of 737 knots (848 miles/1,364 kilometers per hour) at Sea Level, and 1,204 knots (1,386 miles per hour/2,230 kilometers per hour) at 35,000 feet (10,668 meters). The service ceiling was 45,700 feet (13,929 meters). Maximum range was 2,006 nautical miles (2,308 statute miles/3,715 kilometers).
Republic Aircraft Corporation built 833 Thunderchiefs for the U.S. Air Force. 75 of those were F-105Bs. 372 F-105s were lost to enemy action in South East Asia.
Republic F-105B-20-RE Thunderchief 57-5812 served with the 119th Tactical Fighter Squadron, New Jersey Air National Guard, and was later assigned to the 466th Tactical Fighter Squadron, 508th Tactical Fighter Wing at Hill Air Force Base, Utah. One source indicates that the the record-setting F-105B was used as a battle damage repair trainer at McClellan Air Force Base, Sacramento, California, from October 1980.
¹ Many sources cite General Moore’s World Record Speed for the 100-kilometer closed course at 1,216.48 miles per hour (1,957.745 kilometers per hour). The FAI’s official web site gives General Moore’s speed as 1,878.67 kilometers per hour (1,167.35 miles per hour). (See above.) Also, many sources (including General Moore’s official Air Force biography) state that General Moore won the Bendix Trophy for this flight. The Bendix Trophy was awarded to the winner of an annual West-to-East transcontinental air race. The Smithsonian Institution indicates that the Bendix Trophy was not awarded for the years 1958, 1959 or 1960.
11 December 1951: The first helicopter powered by a gas turbine engine made its first flight at the Kaman Aircraft Company plant at Bloomfield, Connecticut. Using a K-225 tandem rotor helicopter delivered to the U.S. Navy in 1949, Bureau of Aeronautics serial number (“Bu. No.”) 125477, Kaman replaced the 220 horsepower Lycoming O-435-A2 reciprocating engine with a Boeing 502-2E turboshaft engine. This engine could produce 175 continuous horsepower at 2,900 r.p.m. at Sea Level, less than the piston engine it replaced, but it also weighed considerably less.
K-225 Bu. No. 125477 was the first helicopter to perform an intentional loop, when it was delivered to the Navy at NATC Patuxent River by factory test pilot William R. Murray. It was placed in storage at Bradley Field, Windsor Locks, Connecticut until 1957. The gas turbine had been removed. When the helicopter was transferred to the Smithsonian Institution in 1957, a similar-appearing Boeing YT-50-BO-2 gas turbine engine was installed.
The K-225 was a two-place, single-engine helicopter using Kaman’s unique system of counter-rotating, intermeshing rotors (“synchropter”). Each rotor cancelled the torque reaction of the other, eliminating the need for a tail rotor. In a conventional single-rotor helicopter, up to 30% of the engine power is required to drive the tail rotor. With the counter-rotating design, the total engine power is available for lift and thrust.
K-225 Bu. No. 125477 is 22 feet, 5 inches (6.83 meters) long. Each rotor has a diameter of 38 feet (11.58 meters). It stands 11 feet, 6 inches (3.51 meters) high. The helicopter has an empty weight of 1,800 pounds (816 kilograms) and a maximum gross weight of 2,700 pounds (1,225 kilograms). It is a slow helicopter, with a never-exceed (VNE) limit of 70 miles per hour (112.7 kilometers per hour). This historic helicopter is on display at the Smithsonian Institution National Air and Space Museum, Steven F. Udvar-Hazy Center in Chantilly, Virginia.
11 December 1945: Three days after Lieutenant Colonel Henry E. Warden and Captain Glen W. Edwards set a transcontinental speed record flying a prototype Douglas XB-42 from Long Beach, California, to Washington, D.C., in 5 hours, 17 minutes, Colonel Clarence S. Irvine and the crew of the B-29 Pacusan Dreamboat also set a record, flying from Burbank, California to overhead Floyd Bennett Field, New York, in 5 hours, 27 minutes, 8 seconds. The average speed for the 2,464-mile flight was 450.38 miles per hour (724.82 kilometers per hour).
Irvine was Deputy Chief of Staff, Pacific Air Command, 1944–1947. He flew the Pacusan Dreamboat on several record-setting flights, including Guam to Washington, D.C., and Honolulu, Hawaii to Cairo, Egypt. He rose to the rank of lieutenant general in the United States Air Force, and served as Deputy Chief of Staff for Materiel.
Pacusan Dreamboat was a Bell Aircraft Corporation B-29B-60-BA Superfortress, built at Marietta, Georgia. The B-29B was a lightweight variant of the B-29, intended for operation at lower altitudes. It did not have the four power gun turrets and their .50-caliber machine guns. A radar-directed 20 mm cannon and two .50-caliber machine guns in the tail were the only defensive weapons. Much of the standard armor plate was also deleted. Pacusan Dreamboat was further lightened. The tail guns were removed and the tail reshaped.
The B-29B was equipped with four air-cooled, fuel-injected Wright R-3350-CA-2 Duplex Cyclone two-row 18 cylinder radial engines and specially-designed propellers. The engine nacelles were modified for improved cooling.
The Superfortress had been lightened to an empty weight of 66,000 pounds (29,937 kilograms). A standard B-29B weighed 69,000 pounds (31,298 kilograms) empty and 137,000 pounds (62,142 kilograms) fully loaded. Additional fuel tanks installed on the Dreamboat were able to carry 10,000 gallons (37,854 liters) of gasoline.
11 December 1941: The last four aircraft of Marine Fighter Squadron 211 (VMF 211), led by Captain Henry Talmage Elrod, U.S. Marine Corps, attacked the invading Imperial Japanese Navy South Seas Force, consisting of four light cruisers, six destroyers, two patrol boats and two amphibious support ships with 450 Special Navy Landing Force soldiers, as they approached to invade the United States outpost at Wake Island. The Grumman F4F-3 Wildcats bombed the destroyer IJN Kisaragi.
VMF 211 had lost two-thirds of its aircraft on Monday, 8 December:
“. . . 36 twin-engine bombers based on Roi and Namur Islands in the Kwajalein Atoll, 620 miles to the southward, executed the day-bombing missions. The first strike, three 12-plane vees dove out of a rain squall at noon 8 December. The surf was roaring so furiously that nobody ashore heard or saw the enemy until fifteen seconds before the first bombs hit. The planes leveled out at 2000 feet altitude and made for the airfield, where 8 Wildcats were being serviced and fueled. Here 4 grounded planes disintegrated under direct hits; fire spread and destroyed 3; the eighth was hit but later salvaged; 23 Marine officers and men were left dead or dying. . . Four Wildcats now got into the battle, strafing the retreating ships and dropping their little 100-pound bombs from an extemporized release, returning to rearm, take off and bomb again. They put the torpedo battery of Tenryu out of action, hit the radio shack of Tatsuta, and started gasoline fires on a transport. One plane was badly shot up; the pilot, Captain Elrod, just managed to ground it on the beach, burning and broken, but he had already made a lethal pass at the retreating destroyer Kisaragi, which carried an extra load of depth charges. A second Wildcat was just pushing over to press home an attack on this destroyer at 0731 when she blew up and sank. There were no survivors.”
— History of United States Naval Operations in World War II, Volume III: The Rising Sun in the Pacific 1931–April 1942, by Samuel Eliot Morison, Little, Brown and Company, Boston, 1988. Chapter XII at Pages 230 and 234.
A few minutes earlier another destroyer, IJN Hayate, had received two direct hits in its magazines from the 5-inch/51-caliber guns of Battery L, a coast defense artillery battery of the U.S. Marines. It was hit at a range of 4,000 yards (3,658 meters), exploded and sank with all hands. The invasion force flag ship, light cruiser IJN Yubari, received 11 direct hits from the Marine gunners. Under the combined air and artillery attacks, the invasion force withdrew.
The island finally fell to the unrelenting Japanese attacks, 23 December 1941.
Captain Elrod’s fighter was a Grumman F4F-3 Wildcat, designed by Robert Leicester Hall as a carrier-based fighter for the United States Navy. The F4F was a single-place, single-engine, mid-wing monoplane with retractable landing gear, designed to operate from land bases or U.S. Navy aircraft carriers.
The F4F-3 was 28 feet, 10½ inches (8.801 meters) long, with a wingspan of 38 feet, 0 inches (11.582 meters) and overall height of 11 feet, 9 inches (3.581 meters). Unlike the subsequent F4F-4, which had folding wings for storage aboard aircraft carriers, the F4F-3 had fixed wings. The wings had an angle of incidence of 0°, and 5° dihedral. The horizontal stabilizer span was 13 feet, 8 inches (4.166 meters) with 1½° incidence. The empty weight of the basic F4F-3 was 5,238 pounds (2,376 kilograms), and the gross weight was 7,065 pounds (3,205 kilograms).
The F4F-3 was powered by an air-cooled, supercharged, 1,829.39-cubic-inch-displacement (29.978 liter) Pratt & Whitney Twin Wasp SSC5-G (R-1830-76) two-row, 14-cylinder radial engine with a compression ratio of 6.7:1. The R-1830-76 had a normal power rating of 1,100 at 2,550 r.p.m., from Sea Level to 3,500 feet (1,067 meters), and 1,000 horsepower at 2,550 r.p.m. at 19,000 feet (5,791 meters). It was rated at 1,200 horsepower at 2,700 r.p.m. for takeoff. The engine turned a three-bladed Curtiss Electric propeller with a diameter of 9 feet, 9 inches (2.972 meters) through a 3:2 gear reduction. The R-1830-76 was 4 feet, 0.6 inches (1.221 meters) in diameter, 5 feet, 11.31 inches (1.811 meters) long, and weighed 1,550 pounds (703 kilograms).
The F4F-3 had a maximum speed of 278 miles per hour (447 kilometers per hour) at Sea Level, and 331 miles per hour (533 kilometers per hour) at 21,300 feet (6,492 meters). Its service ceiling was 37,000 feet (11,228 meters). Its maximum range was 880 miles (1,416 kilometers)
The F4F-3 Wildcat was armed with four air-cooled Browning AN-M2 .50-caliber machine guns with 450 rounds of ammunition per gun.
The prototype XF4F-1 made its first flight in 1935. It was substantially improved as the XF4F-2. The first production F4F-3 Wildcat was built in February 1940. The airplane remained in production through World War II, with 7,860 built by Grumman and General Motors Eastern Aircraft Division (FM-1 Wildcat).
According to the National Naval Aviation Museum, F4F Wildcats held a 9:1 ratio of victories over Japanese aircraft, with 1,006 enemy airplanes destroyed in combat.