"Plenty of that sabotage stuff," growled the Chief. "Hard to catch the so–and–sos. Smash the gyros and the take–off'd have to wait till new ones got made—and that's more time for more sabotage."
Joe said carefully: "I think it can be licked. Listen a minute, will you?"
The Chief fixed his eyes upon him.
"The gyros have to be rebalanced," said Joe. "They have to spin on their own center of gravity. At the plant, they set them up, spun them, and found which side was heavy. They took metal off till it ran smoothly at five hundred r.p.m. Then they spun it at a thousand. It vibrated. They found imbalance that was too small to show up before. They fixed that. They speeded it up. And so on. They tried to make the center of gravity the center of the shaft by trimming off the weight that put the center of gravity somewhere else. Right?"
The Chief said irritably: "No other way to do it! No other way!"
"I saw one," said Joe. "When they cleaned up the wreck at the airfield, they heaved up the crates with a crane. The slings were twisted. Every crate spun as it rose. But not one wobbled! They found their own centers of gravity and spun around them!"
The Chief scowled, deep in thought. Then his face went blank.
"By the holy mud turtle!" he grunted. "I get it!"
Joe said, with very great pains not to seem triumphant, "Instead of spinning the shaft and trimming the rotor, we'll spin the rotor and trim the shaft. We'll form the shaft around the center of gravity, instead of trying to move the center of gravity to the middle of the shaft. We'll spin the rotors on a flexible bearing base. I think it'll work."
Surprisingly, it was Mike the midget who said warmly, "You got it! Yes, sir, you got it!"
The Chief took a deep breath. "Yeah! And d'you know how I know? The Plant built a high–speed centrifuge once. Remember?" He grinned with the triumph Joe concealed. "It was just a plate with a shaft in the middle. There were vanes on the plate. It fitted in a shaft hole that was much too big. They blew compressed air up the shaft hole. It floated the plate up, the air hit the vanes and spun the plate—and it ran as sweet as honey! Balanced itself and didn't wobble a bit! We'll do something like that! Sure!"
"Will you work on it with me?" asked Joe. "We'll need a sort of crew—three or four altogether. Have to figure out the stuff we need. I can ask for anybody I want. I'm asking for you. You pick the others."
The Chief grinned broadly. "Any objections, Haney? You and Mike and me and Joe here? Look!"
He pulled a pencil out of his pocket. He started to draw on the plastic table top, and then took a paper napkin instead.
"Something like this―"
The steaks came, sizzling on the platters they'd been cooked in. The outside was seared, and the inside was hot and deliciously rare. Intellectual exercises like the designing of a machine–tool operation could not compete with such aromas and sights and sounds. The four of them fell to.
But they talked as they ate. Absorbed and often with their mouths full, frequently with imperfect articulation, but with deepening satisfaction as the steaks vanished and the method they'd use took form in their minds. It wouldn't be wholly simple, of course. When the rotors were spinning about their centers of gravity, trimming off the shaft would change the center of gravity. But the change would be infinitely less than trimming off the rotors' rims. If they spun the rotors and used an abrasive on the high side of the shaft as it turned….
"Going to have precession!" warned Mike. "Have to have a polishing surface. Quarter turn behind the cutter. That'll hold it."
Joe only remembered afterward to be astonished that Mike would know gyro theory. At the moment he merely swallowed quickly to get the words out.
"Right! And if we cut too far down we can plate the bearing up to thickness and cut it down again―"
"Plate it up with iridium," said the Chief. He waved a steak knife. "Man! This is gonna be fun! No tolerance you say, Joe?"
"No tolerance," agreed Joe. "Accurate within the limits of measurement."
The Chief beamed. The Platform was a challenge to all of humanity. The pilot gyro was essential to the functioning of the Platform. To provide that necessity against impossible obstacles was a challenge to the four who were undertaking it.
"Some fun!" repeated the Chief, blissfully.
They ate their steaks, talking. They consumed huge slabs of apple pie with preposterous mounds of ice cream on top, still talking urgently. They drank coffee, interrupting each other to draw diagrams. They used up all the paper napkins, and were still at it when someone came heavily toward the table. It was the stocky man who had fought with Haney on the Platform that day. Braun.
He tapped Haney on the shoulder. The four at the table looked up.
"We hadda fight today," said Braun in a queer voice. He was oddly pale. "We didn't finish. You wanna finish?"
Haney growled.
"That was a fool business," he said angrily. "That ain't any place to fight, up on the job! You know it!"
"Yeah," said Braun in the same odd voice. "You wanna finish it now?"
Haney said formidably: "I'm not dodgin' any fight. I didn't dodge it then. I'm not dodgin' it now. You picked it. It was crazy! But if you got over the craziness―"
Braun smiled a remarkably peculiar smile. "I'm still crazy. We finish, huh?"
Haney pushed back his chair and stood up grimly. "Okay, we finish it! You coulda killed me. I coulda killed you too, with that fall ready for either of us."
"Sure! Too bad nobody got killed," said Braun.
"You fellas wait," said Haney angrily to Joe and the rest. "There's a storeroom out back. Sid'll let us use it."
But the Chief pushed back his chair.
"Uh–uh," he said, shaking his head. "We're watchin' this."
Haney spoke with elaborate courtesy: "You mind, Braun? Want to get some friends of yours, too?"
"I got no friends," said Braun. "Let's go."
The Chief went authoritatively to the owner of Sid's Steak Joint. He paid the bill, talking. The owner of the place negligently jerked his thumb toward the rear. This was not an unparalleled request—for the use of a storeroom so that two men could batter each other undisturbed. Bootstrap was a law–abiding town, because to get fired from work on the Platform was to lose a place in the most important job in history. So it was inevitable that the settlement of quarrels in private should become commonplace.
The Chief leading, they filed through the kitchen and out of doors. The storeroom lay beyond. The Chief went in and switched on the light. He looked about and was satisfied. It was almost empty, save for stacked cartons in one corner. Braun was already taking off his coat.
"You want rounds and stuff?" demanded the Chief.
"I want fight," said Braun thickly.
"Okay, then," snapped the Chief. "No kickin' or gougin'. A man's down, he has a chance to get up. That's all the rules. Right?"
Haney, stripping off his coat in turn, grunted an assent. He handed his coat to Joe. He faced his antagonist.
It was a curious atmosphere for a fight. There were merely the plank walls of the storeroom with a single dangling light in the middle and an unswept floor beneath. The Chief stood in the doorway, scowling. This didn't feel right. There was not enough hatred in evidence to justify it. There was doggedness and resolution enough, but Braun was deathly white and if his face was contorted—and it was—it was not with the lust to batter and injure and maim. It was something else.
The two men faced each other. And then the stocky, swarthy Braun swung at Haney. The blow had sting in it but nothing more. It almost looked as if Braun were trying to work himself up to the fight he'd insisted on finishing. Haney countered with a roundhouse blow that glanced off Braun's cheek. And then they bore in at each other, slugging without science or skill.