The expectation was that two pilot models would serve for testing and results applied to the production lines.

The pilot model of his design was finished in 1936 and given the designation A9E1.

There was really very little in his pilot model.

Testing of the pilot model which was completed in 1944 showed the vehicle to be much too heavy for practical use.

"Well, at least the new pilot model works okay," he reflected with satisfaction.

Both men watched with interest as Tom explained his small-scale pilot model.

"That's why I want you to send the pilot model of the new camera I've been working on."

The electronics department has been working on a pilot model for the past two weeks.

He often worked on the pilot models of Tom's inventions.

"This pilot model rigged up on my test bench is designed to turn electrical energy into matter."