title: Polar Ship Operations
author: Duke Snider
description: A comprehensive practical guide to navigation in the polar regions. Covers preparation of the ship, personnel, and cargoes for polar transits. Introduces the mariner to ice physics, operation in polar ice (north and south), tactics for ice navigation, ice convoy work with particular focus on polar ice regimes, polar infrastructure, communications, environmental response and insurance.
zlib_text: ## CHAPTER 13
  
  
  "Polaris to Commander Walters at Space Academy—Come in, Commander Walters!"
  Captain Strong's voice was urgent in the teleceiver.
  
  
  "Just worked up an assumed position on the Lady Venus," said Roger over the
  intercom. "I think she's bearing about seventeen degrees to port of us, and
  about one-twenty-eight on the down-plane of the ecliptic."
  
  
  "O.K., Roger," said Tom. "Captain Strong's trying to reach Commander Walters
  now." He made a quick mental calculation. "Golly, Roger—if you've figured it
  right, we're closer to the Lady Venus than anyone else!"
  
  
  The teleceiver audio crackled.
  
  
  "Commander Walters at Space Academy to Captain Strong on the Polaris. Come in,
  Steve!"
  
  
  "Commander!" Strong's voice sounded relieved. "Did you get that emergency from
  the Lady Venus—the S O S?"
  
  
  "Yes, we did, Steve," said the commander. "How far away from her are you?"
  
  
  Without a word, Tom handed Strong the position that Roger had computed. Strong
  relayed the information to the commander.