ROBINS AIR FORCE BASE, Ga., Oct. 5 -- The U.S. Air Force Reserve Command issued the following news release:

Inside a quiet, air-conditioned room, Senior Airman Emerson Plewacki slides a black virtual reality headset over his eyes. Instantly, the quiet room vanishes, replaced by the towering, grey fuselage of a C-5M Super Galaxy.

For Plewacki, a 433rd Aircraft Maintenance Squadron aero repair journeyman, this digital flight line is a playground of possibilities. In this virtual world, there is no scorching South Texas heat, no deafening roar of departing aircraft, and critically, no risk of making a million-dollar mistake.

"Going to tech school, you have big classes, so getting everyone reps is very difficult," said Plewacki, who recently...