Free Murray Leinster (Duke Classic SiFi) by Space Platform

taken part in the building of
every skyscraper and bridge and dam put up in Joe's lifetime. They could
have been kept away from the Space Platform job only by a flat refusal
by security to let them be hired.
    Haney and Joe moved toward Sid's Steak Joint, with Mike the midget
marching truculently between them. Men nodded to them as they passed.
Joe marshaled in his mind what he was going to tell the Chief. He had a
trick for fixing the pilot gyros. A speck of rust would spoil them, and
they had been through a plane crash and a fire and explosions, but his
trick would do, in ten days or less, what the plant back home had needed
four months to accomplish. The trick was something to gloat over.
    Into Sid's Steak Joint. A juke box was playing. Over in a booth, four
men ate hungrily, with a slot TV machine in the wall beside them showing
wrestling matches out in San Francisco. A waiter carried a huge tray
from which steam and fragrant odors arose.
    There was the Chief, dark and saturnine to look at, with his straight
black hair gleaming in the light. He was a Mohawk, and he and his tribe
had taken to steel construction work a long time back. They were good.
There were not many big construction jobs on which the Chief's tribesmen
were not to be found working. Forty of them had died together in the
worst construction accident in history, when a bridge on its way to
completion collapsed in the making, but there were a dozen or more at
work on the Space Platform now. The Chief had essayed machine-tool work
at the Kenmore plant, and he'd been good. He'd pitched on the plant
baseball team, and he'd sung bass in the church choir, but there had
been nobody else around who talked Indian, and he'd gotten lonely. At
that, though, he'd left because the Space Platform began and wild horses
couldn't have kept him away from a job like that!
    He'd held a table for Haney and Mike, but his eyes widened when he saw
Joe. Then he grinned and almost upset the table to stand up and greet
him.
    "Son-of-a-gun!" he said warmly. "What you doin' here?"
    "Right now," said Joe. "I'm looking for you. I've got a job for you."
    The Chief, still grinning, shook his head.
    "Not me, I'm here till the Platform's done."
    "It's on the job," said Joe. "I've got to get a crew together to repair
something I brought out here today and that got smashed in the landing."
    The four of them sat down. Mike's chin was barely above the table top.
The Chief waved to a waiter. "Steaks all around!" he bellowed. Then he
bent toward Joe. "Shoot it!"
    Joe told his story. Concisely. The pilot gyros, which had to be perfect,
had been especially gunned at by saboteurs. An attack with possibly
stolen proximity-fused rockets. The plane was booby-trapped, and
somebody at an airfield had had a chance to spring the trap. So it was
wreckage. Crashed and burned on landing.
    The Chief growled. Haney pressed his lips together. The eyes of Mike
were burning.
    "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