Tag Archives: Fighter Bomber

13 January 2012

F-15E-47-MC Strike Eagle 89-0487 at Bagram Airfield, Afghanistan, 13 January 2012. (Photograph by Airman 1st Class Ericka Engblom, USAF)
McDonnell Douglas F-15E-47-MC Strike Eagle 89-0487, assigned to the 335th Expeditionary Fighter Squadron, taxis into its revetment at Bagram Airfield, Afghanistan, 13 January 2012. Note the World War II Eagle Squadron insignia and the green star kill mark painted on the fighter bomber’s nose. (Photograph by Airman 1st Class Ericka Engblom, USAF)

13 January 2012: This McDonnell Douglas F-15E-47-MC Strike Eagle, 89-0487, became the first F-15 to have logged over 10,000 flight hours. Regularly assigned to Captain Justin Pavoni, Pilot, and Lieutenant Colonel David Moeller, Weapons System Officer and commander of the 335th Expeditionary Fighter Squadron, on the mission which achieved the milestone, 487 was flown by Captain Ryan Bodenheimer, pilot, and Captain Erin Short, WSO, the two youngest flyers in the squadron.

89-0487 was accepted by the Air Force on 13 November 1990. At the time of this event, 487 was considered to be the flag ship of the 335th Expeditionary Fighter Squadron. During a three month period at Bagram Air Base, this individual F-15E flew 1,200 hours and dropped 15% of all the bombs dropped by the squadron.

During Operation Desert Storm, Captains Tim Bennett and Dan Bakke, USAF, flying this F-15E, call sign “Packard 41,” used a GBU-10 Paveway II 2,000-pound laser-guided bomb to “shoot down” an Iraqi Mi-24 Hind attack helicopter. 487 is the only F-15E to have scored an air-to-air victory.

This airplane is still in service with the United States Air Force. It passed 12,000 flight hours on 16 August 2016. It has been deployed for combat operations 17 times.

McDonnell Douglas F-15E Strike Eagle 89-0487 lands at Bagram Air Base after passing its 10,000th flight hour, 13 January 2012. (Airman 1st Class Ericka Engblom, U.S. Air Force)
With Captains Bodenheimer and Short in the cockpit, McDonnell Douglas F-15E-47-MC Strike Eagle 89-0487 lands at Bagram Airfield, Afghanistan, after passing its 10,000th flight hour, 13 January 2012. (Airman 1st Class Ericka Engblom, U.S. Air Force)

The Strike Eagle was begun as a private venture by McDonnell Douglas. Designed to be operated by a pilot and a weapons system officer (WSO), the airplane can carry bombs, missiles and guns for a ground attack role, while maintaining its capability as an air superiority fighter. It’s airframe was a strengthened and its service life doubled to 16,000 flight hours. The Strike Eagle became an Air Force project in March 1981, and  went into production as the F-15E. The first production model, 86-0183, made its first flight 11 December 1986.

Capt. Ryan Bodenheimer celebrates as he and Capt. Erin Short taxi onto the runway in F-15E Strike Eagle #89-0487 before the mission that will bring its logged flying hours up to 10,000. (U.S. Air Force photo/ Airman 1st Class Ericka Engblom)

The McDonnell Douglas F-15E Strike Eagle is a two-place twin-engine multi-role fighter. It is 63 feet, 9 inches (19.431 meters) long with a wingspan of 42 feet, 9¾ inches (13.049 meters) and height of 18 feet, 5½ inches (5.626 meters). It weighs 31,700 pounds (14,379 kilograms) empty and has a maximum takeoff weight of 81,000 pounds (36,741 kilograms). The F-15E is powered by two Pratt and Whitney F100-PW-229 turbofan engines which produce 17,800 pounds of thrust (79.178 kilonewtons) each, or 29,100 pounds (129.443 kilonewtons) with afterburner.

Captain Ryan Bodenheimer climbs down from the cockpit of F-15E Strike Eagle 89-0487 after completing the mission in which the aircraft passed the 10,000 flight hour mark. (U.S. Air Force)

The Strike Eagle has a maximum speed of Mach 2.54 (1,676 miles per hour, (2,697 kilometers per hour) at 40,000 feet (12,192 meters) and is capable of sustained speed at Mach 2.3 (1,520 miles per hour, 2,446 kilometers per hour). Its service ceiling is 60,000 feet (18,288 meters). The fighter-bomber has a combat radius of 790 miles (1,271 kilometers) and a maximum ferry range of 2,765 miles (4,450 kilometers).

Though optimized as a fighter-bomber, the F-15E Strike Eagle retains an air-to-air combat capability. The F-15E is armed with one 20mm M61A1 Vulcan 6-barrel rotary cannon with 512 rounds of ammunition, and can carry four AIM-9M Sidewinder heat-seeking missiles and four AIM-7M Sparrow radar-guided missiles, or a combination of Sidewinders, Sparrows and AIM-120 AMRAAM long range missiles. It can carry a maximum load of 24,500 pounds (11,113 kilograms) of bombs and missiles for ground attack.

McDonnell Douglas F-15E-47-MC Eagle 89-0487, at Lakenheath, 19 October 2019. The aircraft was photographed by Bradley Bygrave, and the image is used with permission.

© 2020, Bryan R. Swopes

11 December 1959

Lieutenant General Joseph H. Moore (1914–2007)
Lieutenant General Joseph H. Moore, United States Air Force

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
Region: World
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
Date: 1959-12-11
Course/Location: Edwards AFB, CA (USA)
Claimant Joseph H. Moore (USA)
Aeroplane: Republic F-105B
Engine: 1 Pratt & Whitney J-75

U.S. Air Force General Claims Air Speed Record Of 1,216 MPH

     LOS ANGELES (UPI)—Brig. Gen. Joseph H. Moore, a grandfather twice over, yesterday claimed a new world air speed record of 1,216 mph for the U.S. Air Force.

     Piloting a Republic F-105 Thunderchief jet, combat equipped, Moore broke the French record of 1,100.426 mph ² over a 100-kilometer closed course at Edwards Air force Base Friday.

     Moore emphasized at a press conference yesterday morning at International Airport here that the new mark has not yet been officially verified by the National Aeronautic Association.

      HE SAID he would attempt the flight again if the NAA does not recognize the new mark.

The general, a combat pilot with 100 missions during World War II who holds many decorations, said he broke the record twice Friday. His “slowest” speed was 1,170 miles an hour, some 70 miles an hour over the French record.

The record was run over the closed course which measured 100 kilometers, or 62.14 miles. He made most of the run at an altitude of 38,000 feet. The French run was made at about 2,500 feet,

     MOORE, 40, soft spoken with a faint Southern drawl, was met at the airport yesterday by his son, 1st Lt. Joseph Moore, a gunnery instructor with the Air Force at Williams Air Force Base, Ariz.

     The general stressed that his plane was a production model, equipped with ammunition and cannon just as it would be in combat. He said that some of the plane’s instruments had been removed to make room for scientific equipment.

     According to Moore, he actually hit a top speed of 1,400 miles an hour in “coming through the gate” at the end of his run around the circular course, about which he was guided by radio and scientific instruments.

The Arizona Republic, Sunday, December 13, 1959, Page 16, Columns 1-3

Republic F-105B-1-RE Thunderchief 54-102. (U.S. Air Force)
Republic F-105B-1-RE Thunderchief 54-102. (U.S. Air Force)

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).

Brigadier General Joseph H. Moore with a Republic F-105 Thunderchief.
Brigadier General Joseph H. Moore with a Republic F-105 Thunderchief.

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 fourteen 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.

Six F-105B-10-REs (6 of 9 block 10 aircraft built) of General Moore's 4th Tactical Fighter Wing parked on the ramp. The stripes on the nose and vertical fin are green. Aircraft are (nearest to farthest) S/N 57-5779, -5780, -5782, -5784, -5781, -5778. (U.S. Air Force photo)
Six F-105B-10-REs (6 of 9 block 10 aircraft built) of General Moore’s 4th Tactical Fighter Wing parked on the ramp. The stripes on the nose and vertical fin are green. Aircraft are (nearest to farthest) 57-5779, -5780, -5782, -5784, -5781, -5778. (U.S. Air Force)
Three Republic F-105B-20-RE Thunderchiefs, serial numbers 57-5815, 57-5807 and 57-5822, begin their takeoff roll. This is the same block number as the F-105B flown by General Moore for the FAI World Speed Record. (U.S. Air Force)
Three Republic F-105B-20-RE Thunderchiefs, serial numbers 57-5815, 57-5807 and 57-5822, begin their takeoff roll. These are from the same production block as the F-105B flown by General Moore for the FAI World Speed Record. (U.S. Air Force)
Republic F-105B-20-RE Thunderchief 57-5812, assigned to the 466th Tactical Fighter Squadron. (Million Monkey Theater)
The World Speed Record holder, Republic F-105B-20-RE Thunderchief 57-5812, assigned to the 466th Tactical Fighter Squadron, 508th Tactical Fighter Wing, Hill Air Force Base, Utah. (Million Monkey Theater)

¹ Many sources, including the newspaper article quoted above, 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.

² FAI Record File Number 8874, 1 771 km/h, set 18 June 1959 by Gérard Muselli, flying a Dassault Mirage III A over Brétigny-sur Orge, France.

© 2018, Bryan R. Swopes

6 December 2010

This photograph was taken by Senior Airman Debbie Lockhart, U.S. Air Force, at Mountain Home Air Force Base, 6 December 2010. The aircraft is a McDonnell Douglas F-15E-50-MC Strike Eagle, 90-0247, assigned to the 391st Fighter Squadron ("Bold Tigers"), 366th Operations Group, Air Combat Command, Mountain Home Air Force Base, Idaho. (U.S. Air Force)
This photograph was taken by Senior Airman Debbie Lockhart, U.S. Air Force, at Mountain Home Air Force Base, 6 December 2010. The aircraft is a McDonnell Douglas F-15E-50-MC Strike Eagle, 90-0247, assigned to the 391st Fighter Squadron (“Bold Tigers”), 366th Operations Group, Air Combat Command, Mountain Home Air Force Base, Idaho. (U.S. Air Force)

27 November 1957

Captain Ray C. Schrecengost with "Cin-Min," McDonnell RF-101C Voodoo 56-0156 (Boeing)
Captain Ray W. Schrecengost with “Cin-Min,” McDonnell RF-101C-40-MC Voodoo 56-0166 (Boeing)
Operation Sun Run #2, McDonnell RF-101C Voodoo 56-164. (Greater St. Louis Air and Space Museum via Ron Downey Aviation Archives)
Operation Sun Run , McDonnell RF-101C-40-MC Voodoo 56-164. This airplane was written off in South Carolina, 10 October 1960. (Photograph courtesy of Ron Downey via Aviation Archives)
McDonnell RF-101C-40-MC Voodoo 56-0165, Sun-Run, flown for Operation Sun Run, 27 November 1957. (U.S. Air Force)
McDonnell RF-101C-40-MC Voodoo 56-165, Operation Sun-Run . This airplane was shot down over North Vietnam, 5 December 1966. The pilot, Lieutenant Colonel Arthur Leonard Warren, 20th Tactical Reconnaissance Squadron, 432nd Tactical Reconnaissance Wing, safely ejected and was in radio contact for two hours after parachuting to the ground. He reported that he was taking fire, and contact was lost. He was listed as Missing in Action. His remains were recovered 17 September 1986 and were buried at the Arlington National Cemetery. (U.S. Air Force)
Operation Sun Run #4, McDonnell RF-101C Voodoo 56-166, flown by Captain Ray C. Schrecengost, U.S. Air Force. (Greater St. Louis Air and Space Museum via Ron Downey)
Operation Sun Run , McDonnell RF-101C-40-MC Voodoo 56-166, flown by Captain Ray C. Schrecengost, U.S. Air Force. This airplane is on display at the National Museum of the United States Air Force.  (Photograph courtesy of Ron Downey via Aviation Archives)
Operation Sun-Run #5
Operation Sun-Run , McDonnell RF-101C-40-MC Voodoo 56-167. This airplane was written off 24 July 1964. (Photograph courtesy of Ron Downey via Aviation Archives)

27 November 1957: Four U.S. Air Force pilots of the 363rd Tactical Reconnaissance Wing successfully completed Operation Sun Run by establishing three new transcontinental speed records in a McDonnell RF-101C aircraft. The record-breaking mission showcased the speed and range of the RF-101C, an improved version of the first supersonic photo reconnaissance aircraft, the RF-101A.

“Operation Sun Run called for six RF-101C aircraft — two to fly round-trip from Los Angeles to New York and back again, two for the one-way flight from Los Angeles to New York, and two for backups if problems arose with the four primary aircraft. The undertaking required massive coordination of aircraft crews and radar and weather stations from coast to coast.

“Operation Sun Run participants, L–R: Capt. Ray W. Schrecengost, Capt. Robert J. Kilpatrick, Capt. Donald D. Hawkins, Maj. Stanley R. Sebring (18th TRS commanding officer, Operation Sun Run operations officer), Lt. Col. William H. Nelson (9th AF, Operation Sun Run programs officer), Capt. Robert E. Burkhart, Capt. Robert M. Sweet, Lt. Gustav B. Klatt. (U.S. Air Force)”

Six pilots of the 17th and 18th Tactical Reconnaissance Squadrons of the 363rd Tactical Reconnaissance Wing were chosen for Operation Sun Run. Each prepared for the round-trip flight, since they would not know which flight they were assigned until a few days before the operation. All six pilots had extensive experience in photo reconnaissance aircraft, although the RF-101 was relatively new to Tactical Air Command.

“The success of Operation Sun Run also depended on the performance of the newly available KC-135 Stratotanker, the USAF’s first jet tanker. The KC-135’s speed allowed the RF-101s to refuel at an altitude of 35,000 feet and a speed of Mach 0.8. Crews from Strategic Air Command and Air Force Research and Development Command prepared for the 26 refuelings the Operation Sun Run RF-101Cs would require.

“At 6:59 a.m., 27 November 1957, Capt. Ray Schrecengost took off from Ontario International Airport near Los Angeles on the first RF-101C round-trip flight of Operation Sun Run. Next into the air were Capt. Robert Kilpatrick on his one-way flight and Capt. Donald Hawkins, flying back-up. Capt. Hawkins followed until the first refueling was complete, and then flew to March Air Force Base, Calif. At 7:50 a.m., Capt. Robert Sweet took off on the second round-trip flight. Lt. Gustav Klatt followed, beginning his one-way trip. Their backup, Capt. Robert Burkhart, also flew to March Air Force Base after the first successful refueling.

“All four RF-101C pilots easily surpassed the previous speed records and established new ones. The new Los Angeles to New York record was established by Lt. Klatt, at 3 hours, 7 minutes and 43.63 seconds. Capt. Sweet set the round-trip record, at a time of 6 hours, 46 minutes and 36.21 seconds, and the New York to Los Angeles record, at a time of 3 hours, 36 minutes and 32.33 seconds.”

Fact Sheets: Operation Sun Run, National Museum of the United States Air Force

McDonnell RF-101C-40-MC Voodoo 56-166. (U.S. Air Force)
McDonnell RF-101C-40-MC Voodoo 56-166. (U.S. Air Force)

The McDonnell RF-101C Voodoo was an unarmed reconnaissance variant of the F-101C fighter. It was 69 feet, 4 inches (21.133 meters) long with a wingspan of 39 feet, 8 inches (12.090 meters). The height was 18 feet (5.486 meters). Empty weight for the RF-101C was 26,136 pounds (11,855 kilograms), with a maximum takeoff weight of 51,000 pounds (23,133 kilograms).

The RF-101C was powered by two Pratt & Whitney J57-P-13 turbojet engines. The J57 was a two-spool axial-flow turbojet which had a 16-stage compressor (9 low- and 7 high-pressure stages), and a 3-stage turbine (1 high- and 2 low-pressure stages). The J57-P-13 maximum continuous power rating of 8,700 pounds of thrust (38.70 kilonewtons); military power, 10,200 pounds (45.37 kilonewtons) (30-minute limit); and 15,000 pounds (66.72 kilonewtons) with afterburner (5 minute limit). The -P-13 was 3 feet, 4.3 inches (1.024 meters) in diameter, 17 feet, 7.0 inches (5.359 meters) long, and weighed 5,025 pounds (2,279 kilograms).

The aircraft had a maximum speed of  879 knots (1,012 miles per hour/1,629 kilometers per hour) at 35,000 feet (10,668 meters)—Mach 1.53. The service ceiling was 49,600 feet (15,118 meters). The Voodoo could carry up to three drop tanks, giving a total fuel capacity of 3,150 gallons (11,294 liters) and a maximum range of 1,864 nautical miles (2,145 statute miles/3,452 kilometers).

The RF-101C was unarmed. It carried six cameras in its nose. Two Fairchild KA-1s were aimed downward, with four KA-2s facing forward, down and to each side.

Beginning in 1954, McDonnell Aircraft Corporation built 807 F-101 Voodoos. 166 of these were the RF-101C variant. This was the only F-101 Voodoo variant to be used in combat during the Vietnam War. The RF-101C remained in service with the U.S. Air Force until 1979.

Colonel Ray W. Schrecengost's McDonnell RF-101C-40-MC Voodoo, 56-166, was named Cin-Min for his daughters, Cindy and Mindy. The Voodoo is painted in camouflage as it appeared when assigned to the 45th Tactical Reconnaissance Squadron at Tan Son Nhut AB, South Vietnam. It was one of the first aircraft camouflaged for combat in SEA. It is in the collection of the National Museum of the United States Air Force. (U.S. Air Force)
Colonel Ray W. Schrecengost’s McDonnell RF-101C-40-MC Voodoo, 56-166, was named “Cin-Min” for his daughters, Cindy and Mindy. The Voodoo is painted in camouflage as it appeared when assigned to the 45th Tactical Reconnaissance Squadron at Tan Son Nhut AB, South Vietnam. It was one of the first aircraft camouflaged for combat in Southeast Asia. 56-166 is in the collection of the National Museum of the United States Air Force. (U.S. Air Force)
Schrek's Cin-Min on the Sun Run" by William S. Phillips at the National Museum of the United States Air Force, depicts Colonel Schre 's McDonnell RF-101C Voodoo. (U.S. Air Force)
“Schrek’s Cin-Min on the Sun Run” by William S. Phillips, at the National Museum of the United States Air Force, depicts Colonel Schrecengost’s McDonnell RF-101C Voodoo. (U.S. Air Force)

A McDonnell Aircraft Corporation film about Operations Sun Run and Fire Wall is available on YouTube:

© 2018, Bryan R. Swopes

25 November 1940

The prototype de Havilland DH.98 Mosquito, W4050, takes off on its first flight at Hatfield, 25 November 1940. (BAE Systems)

25 November 1940: De Havilland Aircraft Company’s Chief Test Pilot, Geoffrey Raoul de Havilland, Jr., and engineer John Walker, made the first flight of the DH.98 Mosquito prototype, E0234, at Hatfield, Hertfordshire, England. The prototype’s Royal Air Force identification was W4050. The multi-role combat aircraft was constructed primarily of layers of balsa covered with layers of birch, then a layer of doped cotton fabric. It was powered by two Rolls-Royce Merlin V-12 engines.

Sir Geoffrey de Havilland, Jr, with a DH.98 Mosquito, 14 October 1943. (Photo by Reg Speller/Fox Photos/Getty Images 3320005)

The construction materials took advantage of plentiful supplies of wood, and also made workers who were not in the standard metal aircraft industry able to take part.

The prototype was rolled out 19 November 1040, painted overall yellow.

The prototype de Havilland DH.98 Mosquito, E0234, outside the Assembly Building, 19 November 1940. (BAE Systems)

The prototype had a wingspan of 54 feet, 2 inches (16.510 meters), and its gross weight was 19,670 pounds (8,922 kilograms). W4050 was powered by two liquid-cooled, supercharged, 1,648.96-cubic-inch-displacement (27.01 liter) Rolls-Royce Merlin Mk.21 single overhead camshaft (SOHC) 60° V-12 engines, producing 1,460 horsepower at 3,000 r.p.m. at 10,000 feet (3028 meters), with 10 pounds (0.69 Bar) of boost, and driving three-bladed de Havilland Hydromatic propellers through a gear reduction.

The prototype DH.98 Mosquito,now marked W4050, in the field behind Salisbury Hall (where it was designed and built) just before its first flight, 25 November 1940. (HistoryNet)

The DH.98 had been predicted to be 20 miles per hour (32 kilometers per hour) faster than the Supermarine Spitfire, but was actually much faster. In testing, the prototype reached 392 miles per hour (631 kilometers per hour) at 22,000 feet (6,706 meters). Improvements were continuously made, and with 2-stage superchargers, W4050 reached a maximum 437 miles per hour (703 kilometers per hour). The DH.98 prototype had a service ceiling of 34,000 feet (10,363 meters) and range of 2,180 miles (3,500 kilometers).

The production fighter variant, the Mosquito F. Mk.II, was 41 feet, 2 inches (12.548 meters) long with a wingspan of 54 feet, 2 inches (16.510 meters) and height of 15 feet, 3 inches (4.648 meters) in 3-point position. The wings had 1½° incidence with approxmatey 2½° dihedral. The leading edges were swept aft 2½°. The total wing area was 436.7 square feet (40.6 square meters). The fighter’s empty weight was 13,356 pounds (6,058 kilograms) and the maximum takeoff weight was 18,649 pounds (8,459 kilograms). The Mk.II had a total fuel capacity of 553 gallons.

The Mk.II had a cruise speed of 265 miles per hour (426 kilometers per hour) at 15,000 feet (4,572 meters) and maximum speed of 380 miles per hour (612 kilometers per hour) at 21,400 feet (6,523 meters).

Mosquito bomber variants could carry four 500 pound bombs, or two 2,000 pound bombs, but were otherwise unarmed. Fighters were equipped with four Hispano Mk.II 20 mm autocannon and four Browning .303-caliber Mk.II machine guns in the nose.

6,411 DH.98 Mosquitoes were built in England, 1,134 in Canada and 212 in Australia. It was produced in bomber, fighter, night fighter, fighter bomber and photo reconnaissance versions.

The prototype DH.98 Mosquito, W4050, at Hatfield, Hertfordshire. (Royal Air Force)

W4050’s (the prototype’s Royal Air Force identification) fuselage was damaged while taxiing at Boscombe Down, 24 February 1941, and had to be replaced with one intended for a second prototype, W4051. It remained at de Havilland and was used to test different engines, armaments and versions. After a series of tests conducted in December 1943, the prototype Mosquito was permanently grounded. It was used as an instructional airframe and later placed in storage.

In September 1958, W4050 was turned over to the de Havilland Aircraft Heritage Centre. Today, the restored prototype DH.98 Mosquito is at the museum at London Colney, Hertfordshire, England.

The Mosquito prototype with camouflauged upper surfaces as it appeared at Boscombe Down, (de Havilland Aircraft Museum)
The Mosquito prototype with camouflaged upper surfaces as it appeared at Boscombe Down, 1941. (de Havilland Aircraft Museum)

© 2020, Bryan R. Swopes