Aboard the space cruiser Polaris, Tom Corbett turned away from the control board. "That's us, sir," he said to Captain Strong.
"Very well, Corbett." The Solar Guard captain walked to the ship's intercom and flipped on the switch.
"Astro, Roger, stand by!"
Astro and Roger reported in. Strong began to speak. "The cadet corps has been divided into squadrons of four ships each. We are command ship of Squadron A. When we reach free-fall space, we are to proceed as a group until eight hundred hours, when we are to open sealed orders. Each of the other seven squadrons will open their orders at the same time. Two of the squadrons will then act as invaders while the remaining six will be the defending fleet. It will be the invaders' job to reach their objective and the defenders' job to stop them."
"Spaceport control to rocket cruiser Polaris, your orbit has been cleared for blast-off...." The voice of Commander Walters interrupted Strong in his instructions and he turned back to Tom.
"Take over, Corbett."
Tom turned to the teleceiver. "Rocket cruiser Polaris to spaceport control."
" ... Blast off minus two—six hundred forty-eight...."
"I read you clear," said Tom. He clicked off the teleceiver and turned back to the intercom. "Stand by to raise ship! Control deck to radar deck. Do we have clear trajectory forward and up, Roger?"
"All clear forward and up," replied Roger.