Question: How many hours did Ronald Nels Running fly in an aircraft removed from combat due to high loss rates?

full_context: Document 1: McDonnell Douglas F-15 Eagle: The McDonnell Douglas F-15 Eagle is an American twin-engine, all-weather tactical fighter aircraft designed by McDonnell Douglas (now Boeing) to gain and maintain air supremacy in aerial combat. Following reviews of proposals, the United States Air Force selected McDonnell Douglas' design in 1967 to meet the service's need for a dedicated air superiority fighter. The Eagle first flew in July 1972, and entered service in 1976. It is among the most successful modern fighters, with over 100 victories and no losses in aerial combat, with the majority of the kills scored by the Israeli Air Force.
Document 2: Charlie Johnson (pilot): Charles (Charlie) Johnson is a former president of Cessna Aircraft. He was born in 1942 in Georgia and grew up in Memphis. He has always been passionate about technology. Because he was also passionate about flight, he joined the Air Force. He fought in the Vietnam War flying the T-33, T-37, T-38, and the F-105. After the Vietnam War he continued with his love of flying. Johnson was a personal pilot for Arnold Palmer. After this he became a test pilot for Learjet. Soon after he rose through the ranks of Cessna to President and COO of Cessna Aircraft. Johnson joined Bye Aerospace in 2014 and was inducted into the Colorado Aviation Hall of Fame the same year. He has just recently been inducted into the Kansas Aviation Hall of Fame. Johnson continues to fly and has a love of cars.
Document 3: Edwin A. Doss: Edwin A. Doss (September 14, 1914January 7, 1996) was an American fighter pilot and commander in the U.S. Air Force during World War II and Korean War. Logging more than 4,500 flying hours, Doss flew 573 combat hours and accrued 280 combat missions during his leadership in the South West Pacific Theatre and Korean War. For his two-year service as commander of the 35th Fighter Group during World War II, Doss was awarded the Distinguished Flying Cross, Legion of Merit, and the Air Medal. He received his second Legion of Merit and the Korean Ulchi medal with a Silver Star for his assignments as commander of the 49th Fighter Bomber Wing and the 3rd Bomber Wing at Kunsan, Korea. Colonel Doss’s service has been cited as integral to the development of long-range fighter tactics in the South West Pacific Theater.
Document 4: Fairchild Republic A-10 Thunderbolt II: The Fairchild Republic A-10 Thunderbolt II is a single-seat, twin turbofan engine, straight wing jet aircraft developed by Fairchild-Republic for the United States Air Force (USAF). Commonly referred to by the nicknames "Warthog" or "Hog", its official name comes from the Republic P-47 Thunderbolt, a World War II fighter effective at attacking ground targets. The A-10 was designed for close air support (CAS) of friendly ground troops, attacking armored vehicles and tanks, and providing quick-action support against enemy ground forces. It entered service in 1976 and is the only production-built aircraft that has served in the USAF that was designed solely for CAS. Its secondary mission is to provide forward air controller – airborne (FAC-A) support, by directing other aircraft in attacks on ground targets. Aircraft used primarily in this role are designated "OA-10".
Document 5: Mitsubishi F-1: The Mitsubishi F-1 is Japan's first post-World War II domestically developed and built supersonic military jet, to enter production in Japan since the end of World War II, thus it was nicknamed "Supersonic Rei-Sen". Mitsubishi Heavy Industries and Fuji Heavy Industries jointly developed the F-1. At first glance, it resembles the French/Anglo SEPECAT Jaguar, but was a completely independent Japanese effort (although it uses the same engines). Its primary role is anti-ship attack, secondary role is ground attack, and it has limited air-to-air capabilities (short-range AIM-9 Sidewinder for self-defense).
Document 6: Lockheed F-104 Starfighter: The Lockheed F-104 Starfighter is a single-engine, supersonic interceptor aircraft which later became widely used as an attack aircraft. It was originally developed by Lockheed for the United States Air Force (USAF), but became widely used by US Allies around the world, and produced by several other NATO nations. One of the Century Series of fighter aircraft, it was operated by the air forces of more than a dozen nations from 1958 to 2004. Its design team was led by Kelly Johnson, who contributed to the development of the Lockheed P-38 Lightning, Lockheed U-2, Lockheed SR-71 Blackbird and other Lockheed aircraft.
Document 7: General Dynamics F-16 Fighting Falcon: The General Dynamics F-16 Fighting Falcon is a single-engine supersonic multirole fighter aircraft originally developed by General Dynamics (now Lockheed Martin) for the United States Air Force (USAF). Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,500 aircraft have been built since production was approved in 1976. Although no longer being purchased by the U.S. Air Force, improved versions are still being built for export customers. In 1993, General Dynamics sold its aircraft manufacturing business to the Lockheed Corporation, which in turn became part of Lockheed Martin after a 1995 merger with Martin Marietta.
Document 8: Lockheed Martin F-22 Raptor: The Lockheed Martin F-22 Raptor is a fifth-generation, single-seat, twin-engine, all-weather stealth tactical fighter aircraft developed for the United States Air Force (USAF). The result of the USAF's Advanced Tactical Fighter program, the aircraft was designed primarily as an air superiority fighter, but also has ground attack, electronic warfare, and signal intelligence capabilities. The prime contractor, Lockheed Martin, built most of the F-22's airframe and weapons systems and conducted final assembly, while Boeing provided the wings, aft fuselage, avionics integration, and training systems.
Document 9: Billy J. Boles: General Billy Joe Boles (born July 27, 1938) is a retired United States Air Force four-star general. At the time of his retirement, he was Commander of the Air Education and Training Command, a 70,000-person organization, responsible for recruiting, training and educating Air Force personnel. He served for more than three years as the Senior Personnel Officer for the US Air Force, at that time a 700,000-person organization, worldwide. In his early career, Bill served in key leadership positions throughout the Air Force, to include four tours of duty at Air Force headquarters in Washington DC. During his command and staff assignments he had extensive experience in media relations and in presenting Air Force programs to congressional committees.
Document 10: Grumman F-14 Tomcat: The Grumman F-14 Tomcat is an American supersonic, twin-engine, two-seat, variable-sweep wing fighter aircraft. The Tomcat was developed for the United States Navy's Naval Fighter Experimental (VFX) program after the collapse of the F-111B project. The F-14 was the first of the American teen-series fighters, which were designed incorporating air combat experience against MiG fighters during the Vietnam War.
Document 11: Chuck Yeager: Charles Elwood "Chuck" Yeager ( ; born February 13 , 1923) is a former United States Air Force general officer and record-setting test pilot. In 1947, he became the first pilot confirmed to have exceeded the speed of sound in level flight.
Document 12: Nels Running: Ronald Nels Running (born 1941) is a retired United States Air Force Major General who has more than 3,800 flying hours in F-105D, F-5 A/E, F-4 D/E and F-16A aircraft. This number of flying hours is significantly higher than the level of 3,000 flying hours that the Air Force requires to award its highest ranking of Command Pilot.
Document 13: Lockheed SR-71 Blackbird: The Lockheed SR-71 "Blackbird" is a long-range, Mach 3+ strategic reconnaissance aircraft that was operated by the United States Air Force. It was developed as a black project from the Lockheed A-12 reconnaissance aircraft in the 1960s by Lockheed and its Skunk Works division. American aerospace engineer Clarence "Kelly" Johnson was responsible for many of the design's innovative concepts. During aerial reconnaissance missions, the SR-71 operated at high speeds and altitudes to allow it to outrace threats. If a surface-to-air missile launch was detected, the standard evasive action was simply to accelerate and outfly the missile. The SR-71 was designed with a reduced radar cross-section.
Document 14: Private pilot licence: A private pilot licence (PPL) or, in the United States, a private pilot certificate, permits the holder to act as pilot in command of an aircraft privately (not for remuneration). The licence requirements are determined by the International Civil Aviation Authority (ICAO), but implementation varies widely from country to country. According to the ICAO, it is obtained by successfully completing a course with at least 40 hours (45 in Europe) of flight time, passing seven written exams, completing a solo cross country flight (minimum cumulative solo flight time is 10 hours), and successfully demonstrating flying skills to an examiner during a flight test (including an oral exam). In the United States, pilots can be trained under Title 14 of federal code part 141, which allows them to apply for their certificate after as few as 35 hours. However, most pilots require 60–70 hours of flight time to complete their training. The minimum age for a student pilot certificate is 14 for balloons and gliders, and 16 for powered flight (airplanes, helicopters, and gyroplanes). The minimum age for a private pilot certificate is 16 for balloons and gliders, and 17 for powered flight (airplanes, helicopters, and gyroplanes). Pilots can begin training at any age and can solo balloons and gliders from age 14, and powered aircraft from age 16.
Document 15: Republic F-105 Thunderchief: The Republic F-105 Thunderchief was a supersonic fighter-bomber used by the United States Air Force. The Mach 2 capable F-105 conducted the majority of strike bombing missions during the early years of the Vietnam War; it was the only U.S. aircraft to have been removed from combat due to high loss rates. Originally designed as a single-seat, nuclear-attack aircraft, a two-seat Wild Weasel version was later developed for the specialized Suppression of Enemy Air Defenses (SEAD) role against surface-to-air missile sites. The F-105 was commonly known as the "Thud" by its crews.
ground_truth: 3,800 flying hours