Ease of operation with a small crew size was possible because of the non-manned main drive engine spaces .
The design specifications for Point Glass included a steel hull for durability and an aluminum superstructure and longitudinally framed construction was used to save weight .
Ease of operation with a small crew size was possible because of the non-manned main drive engine spaces .
The design specifications for Point Glass included a steel hull for durability and an aluminum superstructure and longitudinally framed construction was used to save weight .