He then became training adviser of the 13th Composite Wing primarily flying Douglas B-18 Bolos at Borinquen Field, Puerto Rico.
The German Air Force, or Luftwaffe, was configured primarily to fly in support of ground forces, and, in the Spanish Civil War and the first years of World War II, the Ju-87 Stuka dive-bomber was its principal ground-attack craft.
It has the ability to echolocate, but whereas other previously studied species use echolocation primarily while flying in their caves, the Papuan swiftlet appears to be nocturnal or crepuscular and uses echolocation while active outside at night.
United is flying primarily to major Asian cities like Beijing, Seoul and Singapore, using wide-bodied Boeing 747 or 777 jets.
The fee takes effect Dec. 5, and will primarily affect passengers flying on discount economy-class tickets.
And they are expected to attract passengers close to small airports who have been reluctant to fly primarily because of a fear of turboprops.
AirTran, a low-cost carrier that mainly serves the East Coast, wants to diversify its network by acquiring Midwest, which flies primarily from Milwaukee and Kansas City, Mo.
Instead, it flies primarily as a warning beacon, reminding the rest of the country that South Carolina brooks no interference in its affairs.
On the West Coast, Alaska Airlines has decided to keep first class in most of its fleet of 108 planes, which fly primarily to cities between Alaska and Baja California.
They fly primarily between continents and save fuel by using two engines, one engine fewer than older planes of similar size.
