Arrangements will be made for your admittance to the proving ground.
There, on the proving ground, they watched a big transport-plane land on a makeshift airstrip.
The problem was solved by using the barren surface of the moon and the asteroid belt beyond Mars as a proving ground.
The site remained off-limits to military and civilian personnel of the proving ground and closed to the public.
Here are the expanding works of a formidable fort defending the harbor entrance, and an artillery trial and proving ground.
"Post hospital, Aberdeen Proving Ground," he said sleepily, rubbing his eyes.
The pilot howitzer was delivered by the Watervliet Arsenal to the proving ground on August 24, 1918.
But when these mortars were sent to the proving ground the test-firing deformed the barrels and broke the metal bases.
Extensive laboratories were built at Lakehurst, and the proving ground was operated by a force of 1,500 men.
They are called military ideals only because the proving ground is a little more rugged in the service than elsewhere.