Sections
Airline captain Craig Thorson enjoys researching the early use of military helicopters, especially the Sikorsky S-55, which served with the U.S. Army and the U.S. Air Force.
That was the basic idea behind Project Tugbird.
March 2014
Page 1 of 1
:focal(621x327:622x328)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/8f/e7/8fe75ca9-9d0b-4bcf-a3d8-8b32fc6de2c7/tugbird1100.jpg)