|
Source: 'The Sound of Freedom: Naval Weapons Technology at Dahlgren, Virginia,' by James P. Rife and Rodney P. Carlisle
|
|||||||||||||||||||||||||||||||||||||||||||||||||
 |
Engineer Carl L. Norden, an inveterate inventor and promoter, poses next to an automatic pilot installed in the midsection of an aircraft. (Naval Historical Center) |
||||||||||||||||||||||||||||||||||||||||||||||||
|
