Someone of the writers has had a very keen sense of humor!
One of the characters was named Dr. Aiden Pettit. His primary forte apart from his professional side was trying to 'screw' any female within reach.
You can perhaps imagine the heartfelt laugh I had when I found out that one of the inventors of the 'SCREW propeller' was named Francis PETTIT Smith. Coincidence? Maybe so, but I don't think so... :-)