1955 in aviation

February
February 26 - George F. Smith becomes the first person to survive a supersonic ejection, from a North American F-100 Super Sabre travelling (Mach 1.05).

March
March 10 - Pakistan International Airlines is formed

April
April 1 - post-World War II bans on powered flight in the FRG--West Germany are lifted

April 11 - The Air-India Constellation Kashmir Princess is sabotaged by Kuomintang agents in a failed attempt to assassinate Zhou Enlai. 16 people are killed.

June
June 28 - Jean Moire lands a Bell 47 helicopter on top of Mont Blanc, at an altitude of 4,807 m (15,772 ft)

July
July 26 - Capital Airlines adopts the Vickers Viscount, the first US airline to select a British airliner.

July 27 - an El Al Lockheed Constellation is shot down by Bulgarian Mikoyan-Gurevich MiG-15s. All 58 aboard are killed

August
August 29 - an English Electric Canberra sets a new altitude record of 65,876 ft (20,079 m)

September
September 3 - J. S. Fairfield makes the first ejection from an aircraft on the ground, escaping from a Gloster Meteor traveling at 120 mph (193 km/h) along a runway

September 9 - American Airlines, TWA, and United Airlines agree to adopt a domestic "Coach Class" for transcontinental flights across the United States.

October
October 6 - a Douglas DC-4 operating United Airlines Flight 409, crashes in the Medicine Bow Mountains near Centennial, Wyoming.

October 10 - helicopters from USS Saipan play a key role in rescuing people stranded by flooding in Tampico (Mexico)

October 16 - the Boeing 367-80 (a 707 prototype) crosses the United States in just 3 hours 58 minutes.

November
November 1 - a Douglas DC-6 operating United Airlines Flight 629, is destroyed by a bomb planted by a man attempting to cash in his mother's life insurance policies. 58 people are killed

November 22 - Soviet Tupolev Tu-16 dropped the first Soviet thermo-nuclear bomb RDS-37

December
December 4 - Glenn L. Martin, founder of the Glenn L. Martin Company, dies at age 69.

December 15 - the de Havilland Mosquito flies its final operational sortie with the Royal Air Force

First flights

February
February 14 - Mikoyan-Gurevich Ye-2, prototype of the Mikoyan-Gurevich MiG-21

March
March 2 - Dassault Super Mystère
March 12 - Aérospatiale Alouette II

April
April 25 - FFA P-16 J-3001

May
May 27 - Sud Caravelle

June
June 17 - Tupolev Tu-104
June 25 - Dassault Mirage I
June 25 - Scottish Aviation Twin Pioneer

July
July 14 - Martin XP6M-1 Seamaster, BuNo 138821
July 23 - PZL TS-8 Bies

August
August 4 - Lockheed Article 001, prototype of the Lockheed U-2

September
September 7 - Sukhoi S-1, prototype of Su-7.
September 20 - Nord 1500 Griffon

October
October 22 - Republic XF-105
October 25 - Saab Draken

November
November 24 - Fokker F27

December
December 15 - Douglas DC-7

Entered service

January
January 9 - Vickers Valiant with No. 138 Squadron RAF

June
June 29 - B-52 Stratofortress with the 93rd Bomb Wing