UNITED STATES AIR FORCES
U. S. ARMY AIR SERVICE
The First Pursuit Group, Air Service, stationed at Selfridge Field, Mich., started on Feb. 16 a series of realistic maneuvers to ascertain the possibility of aircraft operation in extreme cold weather. The Group moved out from its own field with pursuit planes and also camp equipment, including tents, stoves, bedding, supplies and spare parts transported by planes.