Surrey

Shortly after takeoff from runway 12, while climbing to a height of some 100 feet in snow falls, the aircraft banked right, stalled and crashed on a parked CSA C-47 registered OK-WDB. Two technicians were working on the Czech C-47 for a maintenance control. Both aircraft were destroyed by fire. While both technicians were slightly injured, 11 people on board the VP-YFD were injured while 12 others were killed, among them the captain, Edward Spencer, founder and owner of this company based in Salisbury, Rhodesia. The aircraft was still registered NC32975.

The aircraft entered the London Control Zone when QBI conditions (compulsory IFR conditions) were in force. When the pilot estimated that he flew over the Croydon MF beacon, he had actually passed it two or three minutes earlier. He continued to fly on a westerly course for three or four minutes until receiving instructions that he was next to land, and that the landing direction was 120 degrees M. The aircraft then began to descend again and after receiving several QDM's the pilot turned on to the course for Croydon. The pilot levelled out at an indicated altitude of 1,200 feet and the undercarriage was lowered. Almost immediately after, whilst still flying in cloud, the aircraft struck the tops of trees and crashed. The pilot had set the altimeter to the sea level pressure instead of airfield pressure. Consequently the aircraft's height would be about 230 feet lower than that indicated by the altimeter.
Source:
http://aviation-safety.net/database/record.php?id=19461106-0

The crew left Wisley Airfield at 1705LT on a local test flight on this first prototype, in accordance to the certification program. Five minutes after takeoff, while cruising at an altitude of 1,000 feet, the crew willingly shut down the right engine. Four minutes later, the left engine encountered technical problems and failed. Unable to maintain a safe altitude, the captain decided to attempt an emergency landing and the airplane crash landed in a field located in Effingham, about 2 miles southeast of the Wisley Airfield. While all four crew members were uninjured, the aircraft was damaged beyond repair. This was the first mishap involving a Vickers Viking.

On approach to Croydon, the crew encountered poor visibility with low clouds and mist. While descending at a too low altitude, the aircraft hit a hill and crashed in Warlingham, about 9 km south of Croydon Airfield. Eight occupants were killed while ten others were rescued.

The crew (one instructor and two student pilots) were performing a circular training flight in Croydon. Shortly after takeoff, while in initial climb, the instructor shut off one of the engine. Immediately, the student pilot feathered the propeller but was unable to raise the landing gear. Due to an insufficient speed, the aircraft stalled and crashed in Coulsdon, south of the airport. While all three occupants were unhurt, the aircraft was written off.

Shortly after liftoff from Croydon Airport, while in initial climb, both engines failed simultaneously. The aircraft stalled and crashed on the Mitchley Avenue located in the suburb of Sanderstead. Four crew members were killed while three others were seriously injured.

The crew was completing a flight to the US, repatriating wounded US soldiers. It was scheduled to make a stopover at RAF Greenham Common near Newbury, Berkshire. Starting the descent, the crew encountered low visibility with clouds to 600 feet. While flying in a mountainous area, the twin engine aircraft hit a radar antenna, lost its right wing and crashed in flames on a hut located on Mt Gibbet located near Hindhead, Surrey. All 30 occupants and one person in hut were killed.
Crew:
2nd Lt John N. Boyce Jr.,
1st Lt Herbert R. Chickering.

The crew left Villeneuve-les-Vertus Airfield at 1640LT bound for RAF Chalgrove, Oxfordshire, with three other similar aircraft in a V formation. After crossing The Channel and flying over England, the weather conditions worsened and the crew encountered poor visibility. The captain decided to reduce his altitude from 1,500 feet to 1,200 feet. Few seconds later, he descended 200 feet more when the aircraft struck the Leith Hill and was destroyed. All five crew members were killed. Two other aircraft in the formation crashed at the same time, in the same area and in similar circumstances.

The crew left Villeneuve-les-Vertus Airfield at 1640LT bound for RAF Chalgrove, Oxfordshire, with three other similar aircraft in a V formation. After crossing The Channel and flying over England, the weather conditions worsened and the crew encountered poor visibility. The captain decided to reduce his altitude from 1,500 feet to 1,200 feet. Few seconds later, he descended 200 feet more when the aircraft struck the Leith Hill and was destroyed. Three crew members were killed while two others were injured. Two other aircraft in the formation crashed at the same time, in the same area and in similar circumstances.

The crew left Villeneuve-les-Vertus Airfield at 1640LT bound for RAF Chalgrove, Oxfordshire, with three other similar aircraft in a V formation. After crossing The Channel and flying over England, the weather conditions worsened and the crew encountered poor visibility. The captain decided to reduce his altitude from 1,500 feet to 1,200 feet. Few seconds later, he descended 200 feet more when the aircraft struck the Leith Hill and was destroyed. All five crew members were killed. Two other aircraft in the formation crashed at the same time, in the same area and in similar circumstances.