Test

Recently owned and operated by the US Air Force under the registration 43-48758, the plane was involved in accident and considered as damaged beyond repair. The aircraft was sold on the spot to Navegação Aérea Brasileira. Mechanics, not qualified for the job, were ordered to repair the aircraft. On September 21 the aircraft was authorized to carry out a 7-minute test flight. The day after, another test flight was planned. Shortly after takeoff on the second test flight, the left main undercarriage would not retract. Two minutes later the gear worked loose and struck the wing which folded upwards. The remaining (right) wing broke up and the airplane crashed vertically into the ground. All three crew members were killed.

Lost in a crash landing with VX-6 at Ontario. While taking off for an acceptance check flight at Ontario, a landing gear ski jammed and the aircraft was destroyed while attempting an emergency landing a few minutes later. There were no injuries but the aircraft was destroyed.

The crew was performing a test flight when control was lost. The airplane crashed in unknown circumstances in Böcklweiher near Berchtesgaden. All six crew members were killed.

The HDM 105 was a "Proof of Concept" aircraft for the proposed M106 family of Light Transport Aircraft. It was created by replacing the wooden wing of a standard M57 Aerovan (G-AJOF) with a high aspect ratio wing designed by Hurel-Dubois. As such, it first flew on 3 March 1957 piloted by George Miles and Ian Forbes, the latter doing most of the flight testing. The aircraft was severely damaged in a landing accident at Shoreham on 28 June 1958 when it stalled on landing and the tail boom cracked at the hinge line for the rear door. The aircraft was taxied to the hangar with the pilot unaware that the empennage was dragging along the ground. Subsequently, the Hurel-Dubois wings were removed and put in storage, and the wooden remains of G-AHDM disposed of at Shoreham in 1958-59.

Parked since few months on a regional airport, the aircraft was recently purchased by a new owner who wanted to know the exact consumption of oil and fuel. A test flight was scheduled with two test pilots. To be able to perform a longer flight, additional fuel tanks were installed in the cabin. While cruising at a relative low altitude, the crew informed ATC that a fire erupted in the cabin and elected to make an emergency landing. The airplane crash landed in flames in a field located 15 miles from Madras and came to rest. While both pilots were able to evacuate with no injury, the aircraft was destroyed by fire.

The crew (five engineers and five test pilots) were engaged in a local test flight out from Moscow-Sheremetievo Airport. Few minutes after takeoff, the engine number two failed. As it was not possible to feather the propeller, the airplane lost height and speed. The crew decided to return to Sheremetievo Airport for an emergency landing but on final, the airplane stalled and crashed in flames 4 km short of runway threshold. The airplane was destroyed and all ten occupants were killed. The test flight was performed on behalf of AKDON – Aviatsionnaya Krasnoznamyonnaya Diviziya Osobogo Naznacheniya, a division of the Soviet Army.

The crew was engaged in a local test flight on this AN-10 prototype. Shortly after takeoff from Voronezh Airport, while climbing to a height of 500 meters, the engine number one failed. The power of the engine number four was immediately pull back to 40% of its nominal value to avoid any asymmetrical thrust. Few seconds later, the engine number three failed, so the same procedure was performed with the engine number two. Unable to maintain a safe altitude, the captain decided to attempt an emergency landing when the airplane struck the bank of a river and crashed. The mechanic was killed while four other crew members were injured, two of them seriously.

The aircraft took off on a test flight from Stansted Airport at 1059LT and climbed steeply towards the northwest. A few minutes later it was observed approaching the airport from the west at a height of approximately 1,500 feet. At 1113LT the Air Traffic Control Tower received a radio call from the aircraft in which the captain declared an emergency and said that the controls were jammed. At about the same time the aircraft was seen some 6 miles northeast of the airfield descending in a series of dives and climbs. It crashed in a field shortly thereafter killing the crew of three. The greater part of the wreckage was destroyed by fire.

Crashed in unknown circumstances at Long Beach Airport while performing a test flight prior to its delivery to Eastern Airlines. There were no casualties.

The crew was performing a test flight on this new Mexican prototype built by the engineer Ángel Lascurain y Osio. Shortly after takeoff, while in initial climb, both engines failed. The pilot elected to return for an emergency landing but on short final, the undercarriage struck a mound of earth. The aircraft overturned and crashed upside down in a field. Both occupants were killed, test pilot Carlos Castillo Segura (aged 35) and Ángel Lascurain y Osio aged 76.
Source: http://www.elbiplano.com/Lascurain.html