Title: Aerial refueling
Content: craft was eventually modified by Airspeed to Cobham's specification, for a non-stop flight from London to India, using in-flight refueling to extend the plane's flight duration. Meanwhile, in 1929, a group of U.S. Army Air Corps fliers, led by then Major Carl Spaatz, set an endurance record of over 150 hours with the "Question Mark" over Los Angeles. Between June 11 and July 4, 1930, the brothers John, Kenneth, Albert, and Walter Hunter set a new record of 553 hours 40 minutes over Chicago using two Stinson SM-1 Detroiters as refueler and receiver. Aerial refueling remained a very dangerous process

Title: John A. Macready
Content: with Lieutenant Oakley George Kelly, he made the first non-stop coast-to-coast flight, from Roosevelt Field, formerly Mitchell Field, 2.3 miles south-east of Mineola, Long Island, New York to Rockwell Field, North Island, San Diego, California, with a total flight time of 26 hours, 50 minutes and 48 seconds. En route, he made the first in-flight aircraft engine repair in Air Service history, replacing a defective voltage regulator switch while the single engine, high wing Fokker T-2 Liberty mono-plane churned westward. The flight also set a new distance record for a single cross-country flight, 2,625 miles. At McCook he also became

Title: United States Army Air Service
Content: Field of on February 27, 1920, by Maj. Rudolph W. Schroeder; and on September 28, 1921, by Lt. John A. Macready. A distance record was set by Capt. St. Clair Streett leading a flight of four DH-4s from Mitchel Field, New York to Nome, Alaska and back, a distance of 8,690 miles (14,000 km), between July 15 and October 20, 1920. Flying across the northern United States and southern Canada in 15 legs, the flight reached Nome on August 23 in 56 hours of flying time, but was prohibited by the U.S. State Department from completing the first flight to

Title: United States Army Air Service
Content: Beach to Rockwell Field, in 21 hours, 20 minutes, a distance of flying a DH-4 of the 90th Squadron. Mitchell concluded that accomplishing the same feat by "daylight only", making only a single stop at Kelly Field, had tremendous value, and staged a dawn-to-dusk transcontinental flight across the United States in the summer of 1924 in a Curtiss Curtiss PW-8 fighter developed from the R-6 for that purpose. Despite the emphasis in the press on speed, the Air Service also established a number of altitude, distance, and endurance records. The Packard-Le Peré LUSAC-11 biplane set world altitude records over McCook

Title: Bellanca CH-200
Content: Lt Royal Thomas set a world endurance record of 35 hours 25 minutes in a CH-200 re-engined with a Packard DR-980 diesel engine. Between 11 December 1928 and 25 June 1929, Peruvian aviators Carlos Martínez de Pinillos and Carlos Zegarra Lanfranco flew a CH-200 named "Perú" on a tour of Latin America. During that time, they covered 20,635 km (12,866 miles), in 157 hours 55 minutes of total flight, visiting 13 countries and 25 cities along the way. Bellanca CH-200 The Bellanca CH-200 Pacemaker was a six-seat, high-wing, single-engine utility aircraft built in the United States in the 1920s. It

Question: What was the name of the US army airplane which flew a record 150 hours non-stop in 1929?
Answer: Question Mark