Campbell-BIInfinite-mo.prc (8 page)

“If he gets there, I lose him, Morey!” said Arcot. The terrific acceleration of the climb seemed to press them to their seats with a deadly weight. It was labor to talk-but still the car ahead shot on-slowly they seemed to be overhauling him. Now that the velocities were perforce lowered by the effects of gravity, and the air resistance of the atmosphere was well nigh gone, only the acceleration that the human body could stand was considered. The man ahead was pushing his plane ahead with an acceleration that would have killed many men!

Slowly the acceleration of the machine was falling. Arcot pushed the control over to the last ampere, and felt the slight surge, as greater power rushed through the coils momentarily. Soon this was gone too, as the generator behind faltered. The driving power of the atmospheric heat was gone. More than sixty miles below them they could see the earth as a greenish brown surface, slightly convex, and far to the east they could distinguish a silvery line of water! But they had no eyes but for the column of shooting flame that represented the fleeing raider! Out in airless space now, he was safe from them. They could not follow. Arcot turned the plane once more, parallel to the earth, watching the plane above through the roof window. Slowly the machine sank to the fifty-mile level, where there was just sufficient air to maintain it in efficient operation.

“Well, he beat us! But there is only one thing for us to do. He must hang there on his rockets till we leave, and we can hang here indefinitely, if we can only keep this cabin decently warm. He has no air to cool him, and he has the sun to warm him. The only thing that is worrying him right now is the heat of his rockets. But he can throw most of that out with the gases. Lord, that's some machine! But eventually his rockets will give out, and down he will come, so we'll just hang here beneath him and-whoa-not so fast-he isn't going to stay there, it seems; he is angling his ship off a bit, and shooting along, so that, besides, holding himself up, he is making a little forward progress. Well have to follow! He's going to do some speeding, it seems! Well, we can keep up with him, at our level."

“Dick, no plane ever made before would have stood the terrific pulls and yanks that his plane got. He was steering and twisting on the standard type air rudders, and what strains he had! The unique type of plane must be extremely strong. I never saw one shaped like-his before, though-it is the obvious shape at that! It was just a huge triangular arrowhead! Did you ever see one like it?"

“Something like it, yes, and so have you. Don't you recognize that as the development of the old paper gliders you used to throw around as a kid? It has the same shape, the triangular wings with the point in the lead, except that he undoubtedly had a slight curve to the wings to increase the efficiency. Something like the flying wings of fifty years ago, I hope that man is only a kleptomaniac, because he can be cured of that, and I may then have a new laboratory partner. He has some exceedingly intelligent ideas!

“He's an ingenious man, but I wish he didn't store quite so much fuel in his rocket tubes! It's unbearably cold in here, and I can't sacrifice any power just for comfort. The rocket ship up there seems to be getting more and more acceleration in the level. He has me dropping steadily to get air to run the generator. He is going fast enough!"

They followed beneath the pirate, faster and faster as the rockets of the ship began to push it forward more and more.

“Dick, why is it he didn't use all his rockets at first instead of gradually increasing the power this way?"

“If you were operating the ship, Morey, you'd understand. Look at the speedometer a moment and see if you can figure it out."

“Hmmm-4.5 miles per second-buzzing right along-but I don't see what that-good Lord! We never will get him at this rate! How do you expect to get him?"

“I have no idea-yet. But you missed the important point. He is going 4.5 miles a second. When he reaches 5 miles a second he will never come down from his hundred and fifty mile high perch. He will establish an orbit! He has so much centrifugal force already that he has very little weight. We are staying right beneath him, so we don't have much either. Well, there he goes in a last spurt. We are falling behind pretty fast-there we are catching up now-no-we are just holding parallel! He's done it! Look!"

Arcot pulled out his watch and let go of it. It floated motionless in the air for a moment, then slowly drifted back toward the rear of the room. “I am using a bit of acceleration-a bit more than we need to maintain our speed. We are up high enough to make the air resistance almost nothing, even at this velocity, but we still require some power. I don't know—"

There was a low buzz, repeated twice. Instantly Morey turned the dials of the radio receiving set-again the call signal sounded. In a moment a voice came in-low, but distinct. The power seemed fading rapidly.

“I'm Wade-the Pirate-help if you can. Can you get outside the atmosphere? Exceed orbital speed and fall out? Am in an orbit and can't get out. Fuel reserve gage stuck, and used all my rockets. No more power. Can not slow down and fall. I am running out of compressed air and the generator for this set is going-will take animation suspending gas-will you be able to reach me before entering night?"

“Quick, Morey-answer that we will."

“We will try, Pirate-think we can make it!"

“O.K.-power about gone—"

The last of his power had failed! The pirate was marooned in space! They had seen his rockets go out, leaving the exhaust tube glowing for a moment before it, too, was dark, and only the sun shining on the silvery ship made it visible.

'We have to hurry if we want to do anything before he reaches night! Radio the San Francisco fields that we will be coming in soon, and we need a large electro-magnet-one designed to work on about 500 volts D.C., and some good sized storage cells; how many will have to be decided later, depending on the room we will have for them. I'll start decelerating now so we can make the turn and circle back. We are somewhere west of Hawaii, I believe, but we ought to be able to do the trick if we use all the power we can."

Morey at once set to work with the radio set to raise San Francisco airport. He was soon in communication with them, and told them that he would be there in about an hour. They promised all the necessary materials; also that they would get ready to receive the pirate once he was finally brought in to them.

It was nearer an hour and a quarter later that the machine fell to the great San Francisco landing field, where the mechanics at once set to work bolting a huge electromagnet on the landing skids on the bottom of the machine. The most serious problem was connecting the terminals electrically without making holes in the hull of the ship. Finally one terminal was grounded, and the radio aerial used as the other. Fuller was left behind on this trip, and a large number of cells were installed in every possible position. In the power room, a hastily arranged motor generator set was arranged, making it possible to run the entire ship from the batteries. Scarcely had these been battened down to prevent sliding under the accelerations necessary, than Arcot and Morey were off. The entire operation had required but fifteen minutes.

“How are you going to catch him, Arcot?"

“I'll overtake him going west. If I went the other way I'd meet him going at over 10 miles a second in relation to his machine. He had the right idea. He told me to fall out to him at a greater than orbital speed. I will go just within the earth's atmosphere till I get just under him, holding myself in the air by means of a downward acceleration on the part of the regular lifting power units. I am going to try to reach eight miles a second. We will be overhauling him at three a second, and the ship will slow down to the right speed while falling out to him. We must reach him before he gets into the shadow of the earth, though, for if he reaches ‘night’ he will be without heat, and he'll die of cold. I think we can reach him, Dick!"

“I hope so. Those spare cells are all right, aren't they? We'll need them! If they don't function when we get out there, we'll fall clear off into space! At eight miles a second, we would leave earth forever!"

The ship was accelerating steadily at the highest value the men aboard could stand. The needle of the speedometer crept steadily across the dial. They were flying at a height of forty miles that they might have enough air and still not be too greatly hindered by air resistance. The black sky above them was spotted with points of glowing light, the blazing stars of space. But as they flew along, the sensation of weight was lost; they had reached orbital speed, and as the car steadily increased its velocity, there came a strange sensation! The earth loomed gigantic above them! Below them shone the sun! The direction of up and down was changed by the terrific speed! The needle of the speedometer was wavering at 7.8 miles a second. Now it held steady!

“I thought you were going to take it up to eight miles a second, Dick?"

“Air resistance is too great! I'll have to go higher!"

At a height of fifty miles they continued at 8.1 miles a second. It seemed hours before they reached the spot where the pirate's machine should be flying directly above them, and they searched the black sky for some sign of the shining dot of light. With the aid of field glasses they found it, far ahead, and nearly one hundred miles above.

“Well, here we go! I'm going to fall up the hundred miles or so, till we're right in his path; the work done against gravity will slow us down a little, so I'll have to use the power units somewhat. Did you notice what I did to them?"

“We'll have no air from which to get heat for power out here, so we'll have to depend on the sunlight they can absorb. I'm using it now to slow us down as much as possible."

At last the tiny silver dot had grown till it became recognizable as the pirate plane. They were drawing up to it now, slowly, but steadily. At last the little machine was directly beneath them, and a scant hundred yards away. They had long since been forced to run the machine on the storage batteries, and now they applied a little power to the vertical power units. Sluggishly, as they absorbed the sun's heat, the machine was forced lower, nearer to the machine below. At last a scant ten feet separated them.

“All right, Morey."

There was a snap, as the temporary switch was closed, and the current surged into the big magnet on the keel. At once they felt the ship jump a little under the impulse of the magnet's pull on the smaller machine. In a moment the little plane had drifted up to the now idle magnet, touched it and was about to bounce off, when Morey again snapped the switch shut and the two machines were locked firmly together!

“I've got him, Dick!” Morey exclaimed. “Now slow down till it falls. Then we can go and wait for it. Being a glider, it ought to be quite manageable!"

Now the energy of the power units on the roof of the machine began to slow down the two machines, the magnet grinding slightly as the momentum of the plane was thrust upon it. They watched the speedometer drop. The speed was sinking very slowly, for the area of the absorbing fins was not designed to absorb the sun's heat directly, and was very inefficient. The sun was indeed sinking below their horizon; they were just beginning to watch that curious phenomenon of seeing dawn backward, when they first struck air dense enough to operate the power units noticeably. Quickly the power was applied till the machines sank rapidly to the warmer levels, the only governing factor being the tendency of the glider to break loose from the grip of the magnet.

At fifty miles the generator was started, and the heaters in the car at once became more active. There was no heat in the car below, but that was unavoidable. They would try to bring it down to warm levels quickly.

“Whew, I'm glad we reached the air again, Dick. I didn't tell you sooner, for it wouldn't have done any good, but that battery was about gone! We had something like twenty amp-hours left! I'm giving the recharge generator all she will take. We seem to have plenty of power now."

“I knew the cells were low, but I had no idea they were as low as that! I noticed that the magnet was weakening, but thought it was due to the added air strain. I am going to put the thing into a nose dive and let the glider go down itself. I know it would land correctly if it had a chance. I am going to follow it, of course, and since we are over the middle of Siberia we'd better start back."

The return trip was necessarily in the lower level of the atmosphere, that the glider might be kept reasonably warm. At a height of but two miles, in the turbulent atmosphere, the glider was brought slowly home. It took them nearly twenty hours to go the short distance of twelve thousand miles to San Francisco, the two men taking turns at the controls. The air resistance of the glider forced them to go slowly; they could not average much better than six hundred an hour despite the fact that the speed of either machine alone was over twelve hundred miles an hour.

At last the great skyscrapers of San Francisco appeared on their horizon, and thousands of private planes started out to meet them. Frantically Arcot warned them away, lest the air blast from their props tear the glider from the magnet. At last, however, the Air Guard was able to force them to a safe distance and clear a lane through one of the lower levels of the city traffic. The great field of the Transcontinental lines was packed with excited men and women, waiting to catch a glimpse of two of the greatest things the country had heard of in the century-Arcot's molecular motion machine and the Air Pirate!

The landing was made safely in the circle of Air Guardsmen. There was a small hospital plane standing beside it in a moment, and as Arcot's ship released it, and then hung motionless, soundless above it, the people watched it in wonder and excitement. They wanted to see Arcot perform; they clamored to see the wonderful powers of this ship in operation. Air Guardsmen who had witnessed the flying game of tag between these two super-air machines had told of it through the press and over the radio.

Two weeks later, Arcot stepped into the office of Mr. Morey, senior.