The Grumman F6F Hellcat goes into operational use with VF-5 off USS Yorktown (CV-10) in an attack on Marcus Island, 700 miles south of Japan. Hellcat pilots will account for nearly three-fourths of all Navy air-to-air victories in World War II.
The Space Development Agency added 21 satellites to its nascent data transport network in an Oct. 15 launch, the second mission in a 10-month campaign to field 154 operational spacecraft.
