@SFOMuseum Twitter Posts Tagged AirmailDownUnder This is SFO Museum's archive of the @SFOMuseum Twitter account. There are 13 posts and this is page 1 of 2. See all the tags or all the Twitter posts that have been archived so far.

See “Airmail Down Under” on display, pre-security, in the Aviation Museum and Library and online at: https://t.co/BfYpDTHgdD #AirmailDownUnder #AvGeek #jetage This tweet was posted on November 09, 2022.

Regular and swift same-day air travel between the United States and Australia had been realized. Airmail flight covers were used to commemorate these milestones of the jet age as faster and longer-distance flights were achieved. #AirmailDownUnder #AvGeek This tweet was posted on November 09, 2022.

Pan American World Airways and Qantas Airways favored the Boeing 707 jetliner for long-range international routes. These airliners did not need to stop as frequently and layovers in New Caledonia and Canton Island were no longer required. #AirmailDownUnder #AvGeek This tweet was posted on November 09, 2022.

In the late 1950s, jet airliners began to enter service for airlines around the world. These new jet aircraft revolutionized transpacific air travel with their high speed and enhanced range. #AirmailDownUnder #AvGeek This tweet was posted on November 09, 2022.

Featuring rare surviving airmail flight covers that document how the air route across the Pacific Ocean was established during the 1920s and 30s, “Airmail Down Under” is on display, pre-security, in the Aviation Museum & Library & online: https://t.co/BfYpDTYjfD #AirmailDownUnder This tweet was posted on October 12, 2022.

Today, these rare surviving airmail flight covers document how the air route across the Pacific Ocean was established during the 1920s and 30s. #AirmailDownUnder This tweet was posted on October 12, 2022.

In many cases, these flight covers are the only surviving physical objects from historic flights. Aerophilately—the collecting and study of airmail—continues to be a popular pursuit. #AirmailDownUnder This tweet was posted on October 12, 2022.

In addition to the official postage stamp, cancellation mark, and postmark showing date and place, flight covers also included a unique imprint called a cachet—a hand stamped or machine printed design commemorating a fight operation. #AirmailDownUnder This tweet was posted on October 12, 2022.

Airmail became a driving force in the development of commercial aviation after WWI. Airmail envelopes and letters were instant souvenirs of new routes and first flights. Flight covers serve as tangible proof of major aeronautical achievements. #AirmailDownUnder This tweet was posted on October 12, 2022.

See “Airmail Down Under” on display, pre-security, in the Aviation Museum and Library and online at: https://t.co/BfYpDTGIo5 #AirmailDownUnder #AvGeek #philately This tweet was posted on August 30, 2022.

In the late 1940s, land-based aircraft, like the Douglas DC-4, the DC-6, and the Lockheed L-1049 Super Constellation, made regularly operated commercial air routes between the United States & Australia a reality for airmail, cargo, and passengers alike. #AirmailDownUnder #AvGeek This tweet was posted on August 30, 2022.

Although transpacific service was halted by the outbreak of WWII, the war years were transformational for air travel. Not only were new and improved aircraft developed, but a network of airfields was built across the Pacific as part of the war effort. #AirmailDownUnder #AvGeek This tweet was posted on August 30, 2022.