The Army Aviation Heritage Foundation restores Vietnam-era helicopters . `` The good Lord willing , I 'll be back next year ; A new generation of military choppers is being built in the United States to replace aging UH-1Ns and CH-47s that have been used for decades but are now too expensive or difficult to maintain. Copters offer rides at airshows around the country .
The Army Aviation Heritage Foundation restores Vietnam-era helicopters . A new generation of military choppers is being built in the United States to replace aging UH-1Ns and CH-47s that have been used for decades but are now too expensive or difficult to maintain. Copters offer rides at airshows around the country .