Mrs. Macready with her husband, Lieutenant John Arthur Macready, shortly before his altitude record flight, 29 January 1926. (George Rinhart via Daedalians)
29 January 1926: At McCook Field, near Dayton, Ohio, First Lieutenant John Arthur Macready, Air Service, United States Army, took off in an experimental airplane, the Engineering Division XCO-5. Macready was attempting to exceed the existing Fédération Aéronautique Internationale world altitude record of 12,066 meters (39,587 feet), which had been set by Jean Callizo at Villacoublay, France, 21 October 1924.¹
The official observers of the National Aeronautic Association were Orville Wright (co-inventor with his brother Wilbur, of the airplane); George B. Smith of Dayton; and Levitt Luzurne Custer (inventor of the statoscope, the original barometric altimeter).
The Dayton Daily News reported:
Every part of the plane functioned perfectly. . . with the exception of the supercharging apparatus. The plane climbed to 25,000 feet in less than 45 minutes. The remainder of the flight was a fight against the dropping pressure in the motor.
In taking off, the altitude plane required approximately 50 feet and immediately began a steep ascent. Throughout the test the several hundred people who had congregated to see the flight start could find the plane by a long line of white vapor, which trailed in the wake of the ship in the rare atmosphere.
On other tests the plane has shown sea level pressure at approximately 32,000 feet. The super-charger showed a steadily declining pressure after 25,000 feet, indicating its lack of sufficient capacity for the motor. . .
—Dayton Daily News, Vol. XL, No. 162, January 29, 1926, Page 1, Column 7, and Page 2, Column 2
Lieutenant John A. Macready, 28 September 1921. “The cold, though a severe drain on the system with the best protection possible, is more easily met. To prepare for it, Lieutenant Macready wears over his uniform, a heavy suit of woollen underwear and over that a thick heavily padded, leather-covered suit of down and feathers. Then, fur-lined gloves, fleece-lined moccasins over the boots, and a leather head mask lined with fur, which, with the oxygen mask, completely covers the face, completes the costume. The goggles are coated on the inside with anti-freezing gelatine supposed to function to 60 degrees below zero, Fahrenheit.” (NASM)
Lieutenant Macready reported, “My watch stopped at 30,000 feet and I believe it was frozen, because just before landing it started again.” He observed a temperature of -62 °C. (-79.6 °F.) at 34,600 feet (10,546 meters), which he said then increased to -56 °C. (-68.8 °F.) at 36,000 feet (10,973 meters).
When the airplane was inspected after landing at McCook Field, it was found that a crack had developed in the supercharger intercooler, allowing the supercharged air to escape. This resulted in a significant loss of power, and prevented Macready from passing Callizo’s record.
Lieutenant Macready reported that the Fédération Aéronautique Internationale altimeter (one of two altimeters in the airplane’s cockpit) had indicated that he had reached a maximum of 36,200 feet (11,034 meters). When the sealed barograph was sent to the Bureau of Standards in Washington, D.C., for calibration, it indicated a peak altitude of 38,704 feet (11,797 meters). This was 269 meters (883 feet) lower than the existing world record, but it did establish a new United States national altitude record.
Letter from Orville Wright to the National Aeronautic Association, 11 March 1926.Engineering Division XCO-5, A.S. 23-1204. (U.S. Air Force)
The XCO-5 was a prototype two-place, single-engine, two-bay biplane, a reconnaissance and observation variant of the TP-1 fighter. It was built by the Engineering Division at McCook Field. The airplane carried project number P305 painted on its rudder.
The XCO-5’s wings were built specifically for flight at very high altitude, using an airfoil (Joukowsky StAe-27A) designed by Professor Nikolay Yegorovich Zhukovsky (Николай Егорович Жуковский), head of the Central AeroHydroDynamics Institute (TsAGI) at Kachino, Russia. The two-bay biplane wings had a significant vertical gap and longitudinal stagger. The lifting surface was 600 square feet (55.742 square meters). The upper wing had dihedral while the lower wing did not.
The XCO-5 was 25 feet, 1 inch long (7.645 meters) with a wingspan of 36 feet (10.973 meters) and height of 10 feet (3.048 meters). The empty weight was 2,748 pounds (1,246 kilograms) and the gross weight was 4,363 pounds (1,979 kilograms).
The XCO-5 was powered by a water-cooled, 1,649.34-cubic-inch-displacement (27.028 liter) Liberty 12 single overhead cam (SOHC) 45° V-12 engine. It produced 408 horsepower at 1,800 r.p.m. The L-12 is a right-hand tractor, direct-drive engine. As installed on A.S. 23-1204, the engine turned a specially-designed, two-bladed, ground-adjustable, forged aluminum propeller with a diameter of 10 feet, 6 inches (3.200 meters). The Liberty 12 was 67.375 inches (1.711 meters) long, 27.0 inches (0.686 meters) wide, and 41.5 inches (1.054 meters) high. It weighed 844 pounds (383 kilograms).
Also installed on A.S. 23-1204 was an experimental supercharger. FLIGHT explained:
Since the Liberty engine, which delivers 400 h.p. at sea level, has an output of but 50 h.p. at 35,000 feet unsupercharged, a supercharger is a prime requisite of altitude work. The General Electric Form F, 20,000-ft. side type supercharger used in previous tests, with certain modifications, has been installed. The supercharger is an air compressor which keeps the air pressure in the carburettor at sea level pressure at heights where, owing to the natural decrease in the air pressure, the horsepower gradually falls away but to a fraction of its original output. In former supercharger installations, much difficulty was experienced with pre-ignition of the engine. This often became so pronounced that the plane had to be brought to earth. It was suspected that a richer mixture with the supercharger at altitude was necessary. This was found to be true but the principal difficulty was the overheating of the mixture due to the heat generated in the supercharger itself. Due to the increase in temperature created by the compression in the supercharger, it was necessary to interpose an intercooler between the supercharger outlet and the carburettor in order to obtain satisfactory engine performance. The intercooler, in the form of a honeycomb radiator, was placed on the side of the aeroplane. It was also found that the poor conductivity of the air at high altitudes, additional radiating surface for engine cooling was required. This, with the correction of mixture, put an end to pre-ignition.
—FLIGHT, The Aircraft Engineer & Airships, No. 893. (No. 5, Vol. XVIII.), 4 February 1926, Page 69, Column 1
The XCO-5 has a maximum speed of 129 miles per hour (208 kilometers per hour) at Sea Level, and a cruise speed of 117 miles per hour (188 kilometers per hour).
Lieutenant John A. Macready, USAAS, stands in front of the Engineering Division-built XCO-5. (U.S. Air Force)
¹ FAI Record File Number 8384, Gourdou-Leseurre GL.40, 300 c.v. Hispano Suiza
See also: John Arthur Macready (14 October 1887–15 September 1979) [TDiA No. 1,500]
Louise Thaden with Beechcraft C17R NC15835. This is probably the airplane with which she set the 21 January 1937 record, serial number C17R-81. There were three C17Rs registered with the number 15835, serial numbers C17R-74, C17R-77 and C17R-81. (Beech Aircraft Corporation)
21 January 1937: Iris Louise McPhetridge Thaden set a U.S. national record flying her Consolidated Blue Beechcraft C17R “Staggerwing,” NC15835 (serial number C17R-81) from Detroit, Michigan, to Akron Municipal Airport, Akron, Ohio, in 40 minutes, 43 seconds. She had departed Detroit, Michigan, at 3:07:17 p.m., Eastern Standard Time (20:07:17 UTC) and crossed overhead Akron at 3:38:00. (20:38:00 UTC).
Great Circle route from Detroit, Michigan, across Lake Erie, to Akron, Ohio. Distance: 127 miles (204 kilometers). (Great Circle Mapper)
Mrs. Thaden Flies Akron-Detroit Route In 40 Minutes; Beats Ray Brown Record
Time Officially Clocked as Plane Hurtles Over Municipal Airport
By Helen Waterhouse
RUSHING through space in her streamlined blue plane yesterday afternoon, Mrs. Louise Thaden, plucky Bendix race winner, broke all previous records between Detroit and Akron.
The tall Arkansas girl crossed Akron airport just 40 minutes and 43 seconds after leaving Detroit. That constituted an official record, Ray brown, official of the National Aeronautic association, said.
“Wheels off and over the line, is the timing rule,” said Brown. “While Mrs Thaden did not actually land on the port until almost three minutes later, the time crossing the port is what counts.”
The ship had accumulated such speed that it far overshot the port, and came roaring back from the east with the thunder of an army bomber.
BEATS BROWN BY TWO MINUTES
“I beat you by two minutes, Ray,” called the smiling aviatrix as she leaned from the cockpit.
She was referring to an unofficial record made by Brown last November. At that time Brown made the trip in 42 minutes, but there were no official checkers to record it.
J.A. McCann and Airport Manager B.E. “Shorty” Fulton served in this capacity with Brown yesterday.
The girl who has constantly made air records then climbed nimbly from the ship to be greeted by her hostess, Mrs. Brown, and a small crowd of spectators.
Aside from the fact that her eyes were bloodshot from the wind, she showed no effects of the terrific speed at which she had traveled. “I hardly knew I had been in the air, it was such a short trip,” she laughed.
Bareheaded when she landed, she jammed a gray sports hat onto her tousled hair as she alighted. She wore a gray flannel dress, gray sports shoes and a belted caracul coat.
BLAMES SELF FOR PASSING PORT
Lighting one cigaret after another, she upbraided herself for having so far overshot the port.
“Gosh, I don’t know what my top speed was,” she said. “I was too busy up there. I flew at 5,000 feet all the way.”
She scanned the lowering clouds. A few drops of rain were falling. “Doubt if I get off for Montreal tomorrow,” she said cheerfully.
She explained that from Montreal she is flying to the air show in New York City.
Brown figured that the girl had averaged 160 miles and hour over the 110-mile route.
“I just thought it would it would be fun to try to beat your record,” Mrs. Thaden said to him.
After watching her speedy little ship into the Akron Airways hangar, she rode to town with the Browns.
“Things are definitely picking up in the air industry,” she said. “In the last few months I have flown all over the country, and I see great evidence of the pickup in the industry all along the line.
—Akron Beacon Journal, Vol. 98, No. 41, Friday, 22 January 1937, Page 21, at Column 5–7.
[The distance between Detroit Metropolitan Airport (DTW) and Akron Fulton International Airport (AKR) is 127 statute miles (204 kilometers). Mrs. Thaden’s average speed over the course would have been 187.147 miles per hour (301.184 kilometers per hour).]
Just four months, 18 days earlier, Louise Thaden had become the first woman to win the Bendix Trophy Race, flying another Beechraft C17R “Staggerwing,” R15835, serial number C17R-77, from Floyd Bennett Field, Brooklyn, New York, to Mines Field, Los Angeles, California, in 14 hours, 55 minutes, 1.0 seconds.¹ [At this time, airplanes in the experimental or restricted categories were prohibited from displaying the U.S. national identifier, the letter N, as they were not allowed to fly outside the United States.]
Beechcraft C17R R15835 (s/n C17R-77) at the finish of the Bendix Trophy Race, Mines Field, Los Angeles, 4 September 1936. (National Air and Space Museum, Archives Division)
The Bendix race winning airplane had already been sold to the government of the República de Honduras, but Walter Beech let Louse Thaden and Blanche Wilcox Noyes fly it for the race. It was then returned to the Beechcraft plant for overhaul and repainting, before being flown to Honduras by Paul E. Zimmerman. It was assigned to the Escuela Militar de Aviacion.
Beech had another Beechcraft C17R, serial number C17R-81, and also registered NC15835, built for Louise Thaden in October 1936, the month after the Bendix Trophy Race. After being test flown by Mrs. Thaden, it was delivered to her 12 October 1936. It was painted Consolidated Blue with white trim in the same paint scheme as C17R-77. The interior had blue leather seats with Colonial Blue carpet.
C17R-81 is the airplane that Thaden flew to set the 21 January 1937 record.
The Beechcraft C17R was single-engine, single-bay biplane operated by a single pilot and could carry up to three passengers in its enclosed cabin. The basic structure was a welded tubular steel frame with wood formers and stringers. The wings and tail surfaces were built of wood spars and ribs with the leading edges and wing tips covered with plywood. The airplane was covered with doped fabric, except the cabin and engine, which were covered in sheet metal. It was equipped with electrically-operated retractable landing gear and wing flaps.
The Beechcraft Staggerwing got its name because its lower wing was placed ahead of the upper wing (negative stagger). While most biplanes had staggered wings, the Staggerwing was unusual in having negative stagger. This not only increased the pilot’s field of vision, but improved the airplane’s stability in a stall. The Staggerwing was a fast airplane for its time and set several speed and altitude records.
The Beech C17R was 24 feet, 5 inches (7.442 meters) long with a wingspan of 32 feet, 0 inches (9.754 meters) and overall height of 8 feet, 2 inches (2.489 meters). According to the Bureau of Air Commerce license certificate dated 9 October 1936, C17R-81 had an empty weight of 2,393 pounds (1,085 kilograms), and its maximum gross weight was 3,900 pounds (1,769 kilograms).
The leading edge of the Model C17 upper wing was 2 feet, 1 inches (0.635 meters) aft of the lower wing. The leading edges had 0° sweep. Both wings had an angle of incidence of 3°. The upper wing had no dihedral, but the lower wing had +1°. The mean vertical gap between the wings was 5 feet (1.524 meters), and the chord of both wings was 5 feet, 0 inches (1.524 meters). The total wing area was 273 square feet (25.4 square meters). The horizontal stabilizer had 0° incidence, while the vertical fin was offset 0° 43′ to the left of the airplane’s centerline.
This photograph of Beechcraft Model 17s under construction at Wichita, Kansas, reveals the structure of the airplane. (Beech Aircraft Corporation)
The Staggerwing was offered with a selection of engines of different displacements and horsepower ratings. The C17R was powered by an air-cooled, supercharged, 971.930-cubic-inch-displacement (15.927 liter) Wright Whirlwind 440 (R-975E3), a 9-cylinder direct-drive radial engine with a compression ratio of 6.3:1. The R-975E3 was rated at 420 horsepower at 2,200 r.p.m., and 440 horsepower at 2,250 r.p.m. for takeoff, burning 92-octane gasoline. The engine was 43.00 inches (1.092 meters) long and 45.25 inches (1.149 meters) in diameter. It weighed 700 pounds (318 kilograms). The serial number of the engine installed in C17R-81 was 12885. It drove a two-bladed adjustable pitch Hamilton Standard propeller with a diameter of 8 feet, 6 inches (2.591 meters), serial number 18560.
This engine gave the C17R Staggerwing a cruise speed of 195 miles per hour (314 kilometers per hour) at 5,000 feet (1,524 meters), 202 miles per hour (325 kilometers per hour) at 10,000 feet (3,048 meters) and maximum speed of 211 miles per hour (340 kilometers per hour). The service ceiling was 21,500 feet (6,553 meters) and its range with standard fuel capacity, 98 gallons (371 liters), was 800 miles (1,288 kilometers).
The rear passenger seats of C17R-81 were removed and a 56 gallon (212 liter) auxiliary fuel tank installed in their place, bringing to total fuel capacity to 121 gallons (458 liters).
Three C17R Staggerwings have been registered as N15835, including serial numbers C17R-74; C-17R-77, the Bendix race winner; and C17R-81, which was built for Thaden. FAA records indicate that the first, C17R-74, is currengtly registered N15835.
Mrs. Thaden’s personal C17R, s/n C17R-81, an incomplete restoration, was for sale at auction in November 2023.
Iris Louise McPhetridge, circa 1920 (Butler Center for Arkansas Studies, Central Arkansas Library System)Louise McPhetridge, 1926. (The Razorback)
Iris Louise McPhetridge was born 12 November 1905 at Bentonville, Arkansas. She was the first of three daughters of Roy Fry McPhetridge, owner of a foundry, and Edna Hobbs McPhetridge. She was educated at the University of Arkansas at Fayetteville, a member of the Class of 1927. She majored in journalism, and played basketball. She was president of the Delta Delta Delta (ΔΔΔ) Sorority, Delta Iota (ΔΙ) Chapter, and president of The Panhellenic.
Louise McPhetridge had been employed by Walter Beech as a sales representative at Wichita, Kansas, and he included flying lessons with her employment. She received her pilot’s license from the National Aeronautic Association, signed by Orville Wright, 16 May 1928.
Louise Thaden’s pilot license, No. 6850, issued by the National Aeronautic Association and signed by Orville Wright. (The Central Arkansas Library System)
Miss McPhetridge married Mr. Herbert von Thaden at San Francisco, California, 21 July 1928. Thaden was a former military pilot and an engineer. They would have two children, William and Patricia. Thaden had founded the Thaden Metal Aircraft Company, builder of the all-metal Thaden T-1, T-2, and T-4 Argonaut. Thaden went on to design molded plywood furniture for the Thaden-Jordan Furniture Corporation. His designs are considered to be works of art, and individual pieces sell for as much as $30,000 today.
In 1929, she was issued Transport Pilot License number 1943 by the Department of Commerce. Mrs. Thaden was the fourth woman to receive an Airline Transport Pilot rating.
Iris Louise McPhetridge Thaden with her husband, Herbert von Thaden, in front of a Beechcraft C17R Staggerwing, NR15385. (San Diego Air and Space Museum Archives, Catalog #: WOF_00355)
Louise Thaden is credited with having set four Fédération Aéronautique Internationale (FAI) world records.
Mrs. Thaden set an FAI World Record for Altitude of 6,178 meters (20,269 feet) over Oakland, California, 7 December 1928.²
On 17 March 1929, she set an FAI record for duration of 22 hours, 3 minutes, 28 seconds.³
14–22 August 1932 Thaden and Frances Marsalis flew a Curtiss Thrush to set an FAI world record for duation of 196 hours, 5 minutes.⁴
12 July 1936: World Record for Speed Over 100 Kilometers with an average speed of 176.35 kilometers per hour (109.58 miles per hour).⁵
Louise Thaden was secretary of the National Aeronautic Association, and was a co-founder of The Ninety-Nines, serving as that organization’s vice president and treasurer. She set several world and national records and was awarded the US. national Harmon Trophy as Champion Aviatrix of the United States in 1936. She was also employed by the Bureau of Air Commerce.
Louise Thaden stopped flying in 1938. She died at High Point, North Carolina, 9 November 1979.
¹ Please see “This Day in Aviation” at: https://www.thisdayinaviation.com/4-september-1936/
² FAI Record File Number 12221. Please see TDiA for 7 December 1928 at: https://www.thisdayinaviation.com/7-december-1928/
³ FAI Record File Number 12223. Please see TDiA for 17 March 1929 at: https://www.thisdayinaviation.com/17-march-1929/
⁴ FAI Record File Number 12347. Please see TDiA for 14–22 August 1932 at: https://www.thisdayinaviation.com/14-22-august-1932/
⁵ FAI Record File Number 12022. Please see TDiA for 12 July 1936 at: https://www.thisdayinaviation.com/12-july-1936/
McDonnell Douglas F-15A-6-MC Streak Eagle 72-0119. (U.S. Air Force)Major Roger J. Smith, U.S. Air Force
19 January 1975: Major Roger J. Smith, United States Air Force, a test pilot assigned to the F-15 Joint Test Force at Edwards AFB, California, flew the McDonnell Douglas F-15A-6-MC 72-0119, Streak Eagle, to its sixth Fédération Aéronautique Internationale (FAI) and U.S. National Aeronautic Association time-to-altitude record.
From brake release at Grand Forks Air Force Base, North Dakota, at 913 feet (278 meters) above Sea Level, the F-15 reached 20,000 meters (65,617 feet) in 122.94 seconds.
This was the sixth time-to-altitude record set by Streak Eagle in just three days.
FAI Record File Num #9066 [Direct Link]
Status: ratified – retired by changes of the sporting code
Region: World
Class: C (Powered Aeroplanes)
Sub-Class: C-1 (Landplanes)
Category: Not applicable
Group: 3 : turbo-jet
Type of record: Time to climb to a height of 20 000 m
Performance: 2 min 02.94s
Date: 1975-01-19
Course/Location: Grand Forks, ND (USA)
Claimant Roger J. Smith (USA)
Aeroplane: McDonnell Douglas F-15
Engines: 2 Pratt & Whitney F-100
Roger Smith’s United States National Record still stands.
Streak Eagle is a very early production F-15A-6-MC Eagle, a single-seat, twin-engine air superiority fighter. It is 63 feet, 9.0 inches (19.431 meters) long with a wingspan of 42 feet, 9.7 inches (13.048 meters) and overall height of 18 feet, 5.4 inches (5.624 meters). The F-15A has an empty weight of 25,870 pounds (11,734 kilograms) and its maximum takeoff weight (MTOW) is 44,497 pounds (20,184 kilograms).
The F-15A is powered by two Pratt & Whitney JTF22A-25A (F100-PW-100) afterburning turbofan engines. The F100 is a two-spool, axial-flow turbine engine with a 3-stage fan section; 10-stage compressor; single chamber combustion section; and 4-stage turbine (2 low- and 2 high-pressure stages). The engine has a Maximum Continuous Power rating of 12,410 pounds of thrust (55.202 kilonewtons); 14,690 pounds (65.344 kilonewtons, 30-minute limit; and a maximum 23,840 pounds (106.046 kilonewtons), 5-minute limit. The F100-PW-100 is 191 inches (4.851 meters) long, 46.5 inches (1.181 meters) in diameter, and weighs 3,035 pounds (1,376.7 kilograms).
The cruise speed of the F-15A Eagle is 502 knots (578 miles per hour/930 kilometers per hour). It has a maximum speed of 893 knots (1,028 miles per hour/1,654 kilometers per hour) at 10,000 feet (3,048 meters), and 1,434 knots (1,650 miles per hour/2,656 kilometers per hour) at 45,000 feet (13,716 meters). The ceiling is 63,050 feet (19,218 meters) at maximum power. It can climb at an initial 67,250 feet per minute (342 meters per second) from Sea Level, and with a thrust-to-weight ratio of 1.15:1, The F-15 can climb straight up. The Eagle’s combat radius is 638 nautical miles (734 statute miles/1,182kilometers).
The F-15A is armed with one General Electric M61A1 Vulcan 20mm rotary cannon with 938 rounds of ammunition, four AIM-7 Sparrow radar-guided missiles and four AIM-9 Sidewinder heat-seeking missiles.
384 F-15A Eagles were built before production shifted to the improved F-15C version. As F-15Cs became operational, the F-15As were transferred to Air National Guard units assigned to defend continental U.S. airspace. The last F-15A was retired from service in 2009.
Streak Eagle was specially modified for the record attempts. Various equipment that would not be needed for these flights was eliminated: The flap and speed brake actuators, the M61 cannon and its ammunition handling equipment, the radar and fire control systems, unneeded cockpit displays and radios, and one generator.
Other equipment was added: An extended pitot boom was mounted at the nose with alpha and beta vanes; equipment for the pilot’s David Clark Company A/P-225-6 full pressure suit; extremely sensitive accelerometers and other instrumentation; extra batteries; an in-cockpit video camera aimed over the pilot’s shoulder; and perhaps most important, a special hold-back device was installed in place of the fighter’s standard arresting hook.
These changes resulted in an airplane that was approximately 1,800 pounds (817 kilograms) lighter than the standard production F-15A. This gave it a thrust-to-weight ratio of 1.4:1.
Streak Eagle, the modified McDonnell Douglas F-15A-6-MC, 72-0119, on the runway at Grand Forks AFB, North Dakota, being prepared for a flight record attempt. (U.S. Air Force)
The flight profiles for the record attempts were developed by McDonnell Douglas Chief Developmental Test Pilot, Charles P. “Pete” Garrison (Lieutenant Colonel, U.S. Air Force, Retired).
Streak Eagle carried only enough fuel for each specific flight, and for the 20,000 meter climb, weighed 29,877 pounds (13,552 kilograms). It was secured to the hold-back device on the runway and the engines were run up to full afterburner. It was released from the hold-back and was airborne in just three seconds.
When the F-15 reached 428 knots (793.4 kilometers per hour), the pilot pulled up into an Immelman, holding 2.5 Gs. Streak Eagle arrived back over the air base, in level flight at about 32,000 feet (9,754 meters), but upside down. Rolling up right, Streak Eagle continued accelerating to Mach 1.5 when the pilot pulled the fighter up at 4.0 Gs until it reached a 55° climb angle until it reached 20,000 meters
Because Streak Eagle was a very early production airplane, its internal structure was weaker than the final production F-15A standard. It was considered too expensive to modify it to the new standard. It was transferred to the National Museum of the United States Air Force at Wright-Patterson Air Force Base, Ohio, in December 1980.
Streak Eagle, the record-setting McDonnell Douglas F-15A-6-MC, 72-0119, in “Compass Ghost” two-tone gray camouflage, at the National Museum of the United States Air Force. (U.S. Air Force)
A Mooney M20K, similar to the one flown by Alan Gerharter from San Francisco to Washington, D.C., taking off at San Jose, California. The landing gear is retracting. (Rich Snyder — Jetarazzi Photography)Alan W. Gerharter, ATP, CFI. (AOPA)
7 January 1980: In response to a challenge, Alan W. Gerharter, Chief Flight Instructor of Logan and Reavis Air, Inc., Medford, Oregon, flew a four-place, single-engine Mooney M20K, N231LR, serial number 25-0025, from San Francisco International Airport (SFO) to Washington National Airport (DCA) in 8 hours, 4 minutes, 25 seconds.
This qualified as a new Fédération Aéronautique Internationale (FAI) and U.S. National Speed Record of 486.20 kilometers per hour (302.11 miles per hour).¹
Gerharter had beaten the previous record held by a Malvern Gross, Jr., ² flying a Cessna T210, N5119V, by 3 hours, 3 minutes, 23 seconds. When Gerharter arrived at DCA, Gross was there to meet him.
Gerharter had made temporary modifications to the Mooney for this flight. He had two 25 gallon (94.6 liter) fuel tanks mounted in place of the rear seats, bringing the airplane’s total fuel capacity to 122 gallons (462 liters). The right front seat was removed and two oxygen tanks installed. In an effort to reduce aerodynamic drag, he removed the boarding step at the trailing edge of the right wing.
Waiting for advantageous weather, Alan Gerharter took off from SFO at 6:49 a.m., Pacific Standard Time, 7 January 1980. He climbed to 25,000 feet (7,620 meters) and adjusted his power settings to 75%. Though he had meticulously planned a Great Circle Route, electrical problems caused his primary navigation system and autopilot to fail, so he had to navigate by magnetic compass and clock as he made his way across the country. The airplane used 103 gallons (390 liters) of fuel during the flight.Alan Gerharter’s World and National Records still stand.
A flight of four Mooney M20Ks. The lead airplane is the world and national record holder, Mooney 231 N231LR. (Photograph courtesy of Alan W. Gerharter)
The Mooney M20K is an all-metal, low-wing monoplane with retractable tricycle landing gear. The airplane is 25 feet, 5 inches (7.747 meters) long with a wingspan of 36 feet, 1 inch (10.998 meters) and overall height of 8 feet, 3 inches (2.516 meters). Its empty weight is 1,800 pounds (816.5 kilograms) and gross weight is 2,900 pounds (1,315 kilograms).
The M20K is powered by an air-cooled, fuel-injected and turbocharged, 359.656-cubic-inch-displacement (5.894 liter) Teledyne Continental TSIO-360-GB-1 horizontally-opposed six-cylinder direct-drive engine. It has a compression ration of 7.5:1 and is rated at 210 horsepower at 2,700 r.p.m. with 40.0 inches manifold pressure (1.365 Bar). The engine turns a two-bladed McCauley constant-speed propeller with a diameter of 6 feet, 2 inches (1.879 meters). Most TSIO-360-GB engines still in service have been converted to the TSIO-360-LB configuration. The -LB is 2 feet, 3.53 inches (0.699 meters) high, 2 feet, 7.38 inches (0.797 meters) wide and 4 feet, 8.97 inches (1.447 meters) long. It has a dry weight of 343.35 pounds (155.74 kilograms).
The Mooney M20K was marketed as the Mooney 231, a reference to its top speed of 201 knots at 16,000 feet (4,877 meters), or 231.3 miles per hour (372.25 kilometers per hour). The M20K has a Maximum Structural Cruising Speed (VNO) of 200 miles per hour (321.9 kilometers per hour), and a Never Exceed Speed (VNE) of 225 miles per hour (362.1 kilometers per hour). The airplane has a maximum operating altitude of 24,000 feet (7,315 meters).
The M20K was certified in 1979, 24 years after the original M20 entered production, and it was produced until 1998. The M20 series continued in production with follow-on models until 2008.
The transcontinental speed record-setting Mooney M20K, N231LR. (Peachjet Aircraft Sales)
Mooney M20K N231LR was issued an Airworthiness Certificate on 27 December 1978. It is currently registered to a private party in West Sacramento, California.
¹ FAI Record File Number 13854: Speed Over a Recognised Course, 486.20 kilometers per hour (302.11 miles per hour), 7 January 1980. Current Record.
² FAI Record File Number 965: Speed Over a Recognised Course, 352.36 kilometers per hour (218.95 miles per hour). FAI Record File Number 966: Speed Over a Recognised Course, 384.03 kilometers per hour (238.63 miles per hour). Both records were set 1 January 1977.
Brigadier General Willard W. Millikan, United States Air Force.Colonel Willard W. Millikan, U.S. Air Force, in the cockpit of his F-86F Sabre, “Minuteman.” (Associated Press)
2 January 1954: Colonel Willard W. Millikan, United States Air Force, flew a North American Aviation F-86F-25-NH Sabre, 51-13393, named Minuteman, from Los Angeles International Airport to New York in 4 hours, 6 minutes, 16 seconds,¹ averaging 595.91 mph (959.02 kilometers per hour).
Colonel Millikan departed Los Angeles International Airport at 10:10:55 a.m., Eastern Standard Time, and flew most of the route at 40,000 feet (12,192 meters). After expending the fuel in his two 670-gallon (2,536 liter) wing tanks, he dropped them over the southwest desert.
The Sabre crossed over Colorado Springs, Colorado, at 11:28 a.m., EST. At 12:26 p.m., Millikan made a refueling stop at Offutt Air Force Base, Omaha, Nebraska (OFF), where a waiting 20-man crew attached two full wing tanks to the Sabre and he was airborne after only 6 minutes, 28 seconds on the ground.
(The Des Moines Register, Vol. 105, No. 197, Sunday, 3 January 1954, Section 4, Page 3-L, Columns 3–6)
Cruising at 40,000 feet (12,192 meters), he reported 10 miles (16 kilometers) north of Youngstown, Ohio, at 1:47 p.m. EST. Millikan dropped the second set of tanks over Lake Michigan.
Colonel Millikan crossed the finish line at Floyd Bennett Field at 2:19 p.m. EST. His engine flamed out as the aircraft ran out of fuel at 5,000 feet (1,524 meters). Colonel Millikan made a “dead stick” landing at Idlewild Airport, New York City (IDL) at 2:23 p.m., EST.
“My tank was dry,” he said. “I had to glide in. When I arrived on the ground I did not have a drop of fuel.” After refueling at Idlewild, Colonel Millikan took off at 3:57 p.m., and flew back to Mitchel Field, landing there at 4:07 p.m., EST.
Lieutenant Willard W. Millikan, 336th Fighter Squadron, 4th Fighter Group, 8th Air Force, U.S. Army Air Forces, stands in the cockpit of his Republic P-47C-2-RE Thunderbolt 41-6180. (American Air Museum in Britain, Object Number UPL 18911)
Willard Wesley “Millie” Millikan was a fighter ace in World War II, officially credited with having destroyed enemy 13 Messerschmitt Bf-109s and Focke-Wulf Fw-190s.
Millie Millikan was born 4 December 1919 at Hamburg, Iowa. He was the second of five children of John Reily Millikan, a farm laborer, and Hattie Mae Moore Millikan. After graduating from high school, Millikan studied at the Nebraska State Teachers College at Peru, in Peru, Nebraska.
Willard W. Millikan enlisted as an Aviation Cadet in the Air Corps, United States Army, 16 August 1941, at Fort Leavenworth, Kansas. He had brown hair and blue eyes, was 6 feet, 0 inches (1.829 meters) tall and weighed (161 pounds (73 kilograms).
After failing his flight checks as an Aviation Cadet, he went to England and joined the Royal Air Force, serving as a Flying Sergeant in the No. 133 Squadron (one the three Eagle Squadrons) and piloting Hawker Hurricanes and Supermarine Spitfires.
While stationed in England, Captain Millikan married Miss Ruby Samantha Wesson. They would later have a daughter, Patricia.
After the United States entered the war, Millikan was transferred to the U.S. Army Air Forces, and commissioned as a second lieutenant. Millikan served with the 4th Fighter Group and was eventually promoted to the rank of captain. He commanded the 336th Fighter Squadron and flew the Republic P-47C Thunderbolt and North American Aviation P-51B Mustang.
Lieutenant Millikan’s Republic P-47C-2-RE Thunderbolt 41-6180, “Missouri Mauler.” (American Air Museum in Britain, Object Number UPL 14289)
On 22 April 1944, during a 25-minute air battle, Millikan shot down four Messerschmitt Bf 109s with just 666 rounds of ammunition from his Mustang’s four .50-caliber machine guns.
On 30 May 1944, he had to bail out of his North American Aviation P-51B-15-NA Mustang, 43-24769, Missouri Mauler, near Wittenberg, Germany, after colliding with his wingman, Lieutenant Sam Young, who was evading anti-aircraft fire.
Captain Millikan’s North American Aviation P-51B-15-NA Mustang 43-24769, “Missouri Mauler.” (American Air Museum in Britain, Object Number UPL 21818)
Captain Millikan was captured and held as a prisoner of war. He later escaped and returned to friendly lines.
Major Millikan was released from active duty in 1946. He then joined the District of Columbia Air National Guard. In civilian life he worked for the the Norair Division of Northrop Corporation, and the aviation products division of the Goodyear Tire and Rubber Company.
Millikan served during the Korean War, flying the Republic F-84 Thunderjet fighter bomber. At the time of his record-setting flight, he was commanding officer of the 113th Fighter Interceptor Wing, District of Columbia Air National Guard.
Major General Willard W. Millikan, United States Air Force, was awarded the Distinguished Service Cross, Silver Star, Legion of Merit, Distinguished Flying Cross with one silver oak leaf cluster (six awards), Air Medal with three bronze oak leaf clusters (four awards), and the Purple Heart.
He died at Alexandria, Virginia, 20 October 1978 at the age of 59 years. Cremated, his ashes were scattered over England.
North American Aviation F-86F-25-NH Sabre 51-13393, Minuteman, right profile. (Million Monkey Theater)
The North American Aviation F-86 was a single-seat, single-engine day fighter designed by Edgar Schmued and the same team at North American that designed the World War II P-51 Mustang fighter. The F-86F was the third variant, with improvements over the earlier F-86A and F-86E. Colonel Millikan’s Minuteman was a Block 25 F-86F Sabre built at Columbus, Ohio. The Sabre was the first fighter to incorporate swept wings, which improved flight at high subsonic speed by reducing aerodynamic drag and delaying the onset of compressibility effects. The leading edges of the wings and tail surfaces were swept 35° based on captured German technical data and extensive wind tunnel testing.
The F-86F was 37 feet, 6.5 inches (11.443 meters) long with a wingspan of 37 feet, 1.4 inches (11.313 meters) and overall height of 14 feet, 1 inch (4.293 meters). Its empty weight was 10,890 pounds (4,939.6 kilograms) and the maximum takeoff weight was 20,357 pounds (9,233.8 kilograms).
The F-86F was powered by a General Electric J47-GE-27 single-shaft axial-flow turbojet engine. The engine had a 12-stage compressor, 8 combustion chambers, and single-stage turbine. It produced 5,910 pounds of thrust (26.289 kilonewtons) at 7,950 r.p.m. (5 minute limit).
A General Electric J47-GE-27 turbojet engine on display at the National Museum of the United States Air Force. The airplane in the background is a North American Aviation RF-86F Sabre, 52-4492. (U.S. Air Force)
Minuteman was one of the first Block 25 fighters built with the “6–3 wing,” which deleted the leading edge slats of the earlier variants, and moved the wings’ leading edges forward 6 inches (15.24 centimeters) at the root and 3 inches (7.62 centimeters) at the tip. A boundary layer fence was also added. This change increased the Sabre’s maximum speed to 695 miles per hour (1,118.49 kilometers per hour) at Sea Level and improved high altitude maneuvering. This came with a 16 mile per hour (25.75 kilometers per hour) increase in the stall speed, to 144 miles per hour (231.75 kilometers per hour). The service ceiling with this wing was 48,000 feet (14,630 meters).
The F-86F-25 carried 437 gallons (1,654.2 liters) of fuel internally and could carry two 200-gallon (757.1 liter) drop tanks under the wings. Maximum range was 1,525 miles (2,454.25 kilometers).
The F-86A, E and F Sabres were armed with six air-cooled Browning AN-M3 .50-caliber aircraft machine guns with 1,602 rounds of ammunition.
6,233 F-86 Sabres were built by North American at Inglewood, California and Columbus Ohio. Another 521 were assembled by Fiat and Mitsubishi. 1,815 CL-13 Sabres were built by Canadair, and 115 CA-26 and CA-27 Sabres by Commonwealth Aircraft Corporation in Australia. Total production for all types and manufacturers was 8,684.
¹ In an e-mail, Mr. A.W. Greenfield, Director, Contests and Records, National Aeronautic Association, confirmed Colonel Millikan’s transcontinental speed record was certified by the N.A.A. and stated that the time was adjusted.
North American Aviation F-86F Sabre, circa 1955. (U.S. Air Force)
The XCO-5 was a prototype two-place, single-engine, two-bay biplane, a reconnaissance and observation variant of the TP-1 fighter. It was built by the Engineering Division at McCook Field. The airplane carried project number P305 painted on its rudder.
