Space Tug by Murray Leinster (best android ereader .TXT) 📗

to conform to majority usage.">brainstorm in the plane. He didn't know what I was driving at, but he said what I hoped was so. So I'm telling you—and," he added fiercely, "if it's any good everybody gets credit for it, because all of us four—even two big apes who try kidding—are responsible for it!"

He glared at them. Joe asked. "What is it, Mike?"

"I think," said Mike, "I think I've got a trick to make space ships quicker than anybody ever dreamed of. Joe says you can make a weld with powder metallurgy. And I think we can use that trick to make one-piece ships—lighter and stronger and tighter—and fast enough to make your head swim! And you guys are in on it!"

The black car braked by the entrance to the Security offices outside the Shed. It looked completely deserted. There was only a skeleton force here since the Platform had been launched three months before. There was almost nobody to be seen, but Mike pressed his lips pugnaciously together as they got out of the car and went inside.

The four of them, with Sally, went along the empty corridors to the major's office. He was waiting for them. He shook hands all around. But it was not possible for Major Holt to give an impression of cordiality.

"I'm very glad to see all of you back," he said curtly. "It didn't look like you'd make it. Joe, you will be able to reach your father by long-distance telephone as soon as you finish here. I—ah—thought it would not be indiscreet to tell him you[Pg 87] had landed safely, though I did ask him to keep the fact to himself."

"Thank you, sir," said Joe.

"You answered most of the questions you needed to answer on the plane," added the major, grimly, "and now you may want to ask some. You know there is no ship for you. You know that the enemies of the Platform copied our rocket fuel. You know they've made rockets with it. You've met them! And Intelligence says they're building a fleet of space ships—not for space exploration, but simply to smash the Platform and get set for an ultimatum to the United States to backwater or be bombarded from space."

Mike said crisply: "How long before they can do it?"

Major Holt turned uncordial eyes upon him. "It's anybody's guess. Why?"

"We've been working something out," said Mike, firmly but in part untruthfully. He stood sturdily before the major's desk, which he barely topped. "The four of us have been working it out. Joe says they've done powder metallurgy welds, back at his father's plant. Joe and Haney and the Chief and me, we've been working out an idea."

Major Holt waited. His hands moved nervously on his desk. Joe looked at Mike. Haney and the Chief regarded him warily. The Chief cocked his head on one side.

"It'll take a minute to get it across," said Mike. "You have to think of concrete first. When you want to make a cubic yard of concrete, you take a cubic yard of gravel. Then you add some sand—just enough to fill in the cracks between the gravel. Then you put in some cement. It goes in the cracks between the grains of sand. A little bit of cement makes a lot of concrete. See?"

Major Holt frowned. But he knew these four. "I see, but I don't understand."

"You can weld metals together with powder-metallurgy powder at less than red heat. You can take steel filings for sand and steel turnings for gravel and powdered steel for cement—"

Joe jolted erect. He looked startledly at Haney and the[Pg 88] Chief. And Haney's mouth was dropping open. A great, dreamy light seemed to be bursting upon him. The Chief regarded Mike with very bright eyes. And Mike sturdily, forcefully, coldly, made a sort of speech in his small and brittle voice.

Things could be made of solid steel, he said sharply, without rolling or milling or die-casting the metal, and without riveting or arc-welding the parts together. The trick was powder metallurgy. Very finely powdered metal, packed tightly and heated to a relatively low temperature—"sintered" is the word—becomes a solid mass. Even alloys can be made by mixing powdered metals. The process had been used only for small objects, but—there was the analogy to concrete. A very little powder could weld much metal, in the form of turnings and smaller bits. And the result would be solid steel!

Then Mike grew impassioned. There was a wooden mockup of a space ship in the Shed, he said. It was an absolutely accurate replica, in wood, of the ships that had been destroyed. But one could take castings of it, and use them for molds, and fill them with powder and filings and turnings, and heat them not even red-hot and there would be steel hulls in one piece. Solid steel hulls! Needing no riveting nor anything else—and one could do it fast! While the first hull was fitting out a second could be molded——

The Chief roared: "You fool little runt!" he bellowed. "Tryin' to give us credit for that! You got more sense than any of us! You worked that out in your own head——"

Haney rubbed his hands together. He said softly, "I like that! I do like that!"

Major Holt turned his eyes to Joe. "What's your opinion?"

"I think it's the sort of thing, sir, that a professional engineer would say was a good idea but not practical. He'd mean it would be a lot of trouble to get working. But I'd like to ask my father. They have done powder welding at the plant back home, sir."

Major Holt nodded. "Call your father. If it looks promising, I'll pull what wires I can."

Joe went out, with the others. Mike was sweating. All unconsciously,[Pg 89] he twisted his hands one within the other. He had had many humiliations because he was small, but lately he had humiliated himself by not believing in his friends. Now he needed desperately to do something that would reflect credit on them as well as himself.

Joe made the phone call. As he closed the door of the booth, he heard the Chief kidding Mike blandly.

"Hey, Einstein," said the Chief. "How about putting that brain of yours to work on a faster-than-light drive?"

But then he began to struggle with the long distance operator. It took minutes to get the plant, and then it took time to get to the point, because his father insisted on asking anxiously how he was and if he was hurt in any way. Personal stuff. But Joe finally managed to explain that this call dealt with the desperate need to do something about a space fleet.

His father said grimly, "Yes. The situation doesn't look too good right now, Joe."

"Try this on for size, sir," said Joe. He outlined Mike's scheme. His father interrupted only to ask crisp questions about the mockup of the tender, already in existence though made of wood. Then he said, "Go on, son!"

Joe finished. He heard his father speaking to someone away from the phone. Questions and answers, and then orders. His father spoke to him direct.

"It looks promising, Joe," said his father. "Right here at the plant we've got the gang that can do it if anybody can. I'm getting a plane and coming out there, fast! Get Major Holt to clear things for me. This is no time for red tape! If he has trouble, I'll pull some wires myself!"

"Then I can tell Mike it's good stuff?"

"It's not good stuff," said his father. "There are about forty-seven things wrong with it at first glance, but I know how to take care of one or two, and we'll lick the rest. You tell your friend Mike I want to shake him by the hand. I hope to do it tonight!"

He hung up, and Joe went out of the phone booth. Mike[Pg 90] looked at him with yearning eyes. Joe lied a little, because Mike rated it.

"My father's on the way here to help make it work," he told Mike. Then he added untruthfully: "He said he thought he knew all the big men in his line, and where've you been that he hasn't heard of you?"

He turned away as the Chief whooped with glee. He hurried back to Major Holt as the Chief and Haney began zestfully to manhandle Mike in celebration of his genius.

The major held up his hand as Joe entered. He was using the desk phone. Joe waited. When he hung up, Joe reported. The major seemed unsurprised.

"Yes, I had Washington on the wire," he said detachedly. "I talked to a personal friend who's a three-star general. There will be action started at the Pentagon. When you came in I was arranging with the largest producers of powder-metallurgy products in the country to send their best men here by plane. They will start at once. Now I have to get in touch with some other people."

Joe gaped at him. The major moved impatiently, waiting for Joe to leave. Joe gulped. "Excuse me, sir, but—my father didn't say it was certain. He just thinks it can be made to work. He's not sure."

"I didn't even wait for that, something has to turn up to take care of this situation!" said the Major with asperity. "It has to! This particular scheme may not work, but if it doesn't, something will come out of the work on it! You should look at a twenty-five cent piece occasionally, Joe!"

He moved impatiently, and Joe went out. Sally was smiling in the outer office. There were whoopings in the corridor beyond. The Chief and Haney were celebrating Mike's brainstorm with salutary indignity, because if they didn't make a joke of it he might cry with joy.

"Things look better?"

"They do," said Joe. "If it only works...."

Then he hunted in his pocket. He found a quarter and examined it curiously. On one side he found nothing the[Pg 91] major could have referred to. On the other side, though, just by George Washington's chin——

He put the quarter away and took Sally's arm.

"It'll be all right," he said slowly.

But there were times when it seemed in doubt. Joe's father arrived by plane at sunset of that same day, and he and three men from the Kenmore Precision Tool Company instantly closeted themselves with Mike in Major Holt's quarters. The powder metallurgy men turned up an hour later, and a three-star general from Washington. They joined the highly technical discussion.

Joe waited around outside, feeling left out of things. He sat on the porch with Sally while the moon rose over the desert and stars shone down. Inside, matters of high importance were being battled over with the informality and heat with which practical men get things settled. But Joe wasn't in on it. He said annoyedly, "You'd think my father'd have something to say to me, in all this mess! After all, I have been—well, I have been places! But all he said was, 'How are you, Son? Where's this Mike you talked about?'"

Sally said calmly, "I know just how you feel. You've made me feel that way." She looked up at the moon. "I thought about you all the time you were gone, and I—prayed for you, Joe. And now you're back and not even busy! But you don't—— It would be nice for you to think about me for a while!"

"I am thinking about you!" said Joe indignantly.

"Now what," said Sally interestedly, "in the world could you be thinking about me?"

He wanted to scowl at her. But he grinned instead.

7

Time passed. Hours, then days. Things began to happen. Trucks appeared, loaded down with sacks of white powder. The powder was very messily mixed with water and[Pg 92] smeared lavishly over the now waterproofed wooden mockup of a space ship. It came off again in sections of white plaster, which were numbered and set to dry in warm chambers that were constructed with almost magical speed. More trucks arrived, bearing such diverse objects as loads of steel turnings, a regenerative helium-cooling plant from a gaswell—it could cool metal down to the point where it crumbled to impalpable powder at a blow—and assorted fuel tanks, dynamos, and electronic machinery.

Ten days after Mike's first proposal of concreted steel as a material for space ship construction, the parts of the first casting of the mockup were assembled. They were a mold for the hull of a space ship. There were more plaster sections for a second mold ready to be dried out now, but meanwhile vehicles like concrete mixers mixed turnings and filings and powder in vast quantities and poured the dry mass here and there in the first completed mold. Then men began to wrap the gigantic object with iron wire. Presently that iron wire glowed slightly, and the whole huge mold grew hotter and hotter and hotter. And after a time it was allowed to cool.

But that did