CHAPTER VII

MAKING SOME CHANGES

"Well, what do you think of it?" asked Mr. Fenwick again, as Tom

walked all about the electric airship, still without speaking.

"It's big, certainly," remarked the lad.

"Bless my shoe horn! I should say it was!" burst out Mr. Damon.

"It's larger than your RED CLOUD, Tom."

"But will it go? That's what I want to know," insisted the inventor.

"Do you think it will fly, Tom? I haven't dared to try it yet,

though a small model which I made floated in the air for some time.

But it wouldn't move, except as the wind blew it."

"It would be hard to say, without a careful examination, whether

this large one will fly or not," answered Tom.

"Then give it a careful examination," suggested Mr. Fenwick. "I'll

pay you well for your time and trouble."

"Oh if I can help a fellow inventor, and assist in making a new

model of airship fly, I'm only too glad to do it without pay,"

retorted Tom, quickly. "I didn't come here for that. Suppose we go

in the cabin, and look at the motor. That's the most important

point, if your airship is to navigate."

There was certainly plenty of machinery in the cabin of the WHIZZER.

Most of it was electrical, for on that power Mr. Fenwick intended to

depend to sail through space. There was a new type of gasolene

engine, small but very powerful, and this served to operate a

dynamo. In turn, the dynamo operated an electrical motor, as Mr.

Fenwick had an idea that better, and more uniform, power could be

obtained in this way, than from a gasolene motor direct. One

advantage which Tom noticed at once, was that the WHIZZER had a

large electric storage battery.

This was intended to operate the electric motor in case of a break

to the main machinery, and it seemed a good idea. There were various

other apparatuses, machines, and appliances, the nature of which Tom

could not readily gather from a mere casual view.

"Well, what's your opinion, now that you have seen the motor?" asked

Mr. Fenwick, anxiously.

"I'd have to see it in operation," said Tom.

"And you shall, right after dinner," declared the inventor. "I'd

like to start it now, and hear what you have to say, but I'm not so

selfish as that. I know you must be hungry after your trip from

Shopton, as they say aeroplaning gives one an appetite."

"I don't know whether it's that or not," answered Tom with a laugh,

"but I am certainly hungry."

"Then we'll postpone the trial until after dinner. It must be ready

by this time, I think," said Mr. Fenwick, as he led the way back to

the house. It was magnificently furnished, for the inventor was a

man of wealth, and only took up aeroplaning as a "fad." An excellent

dinner was served, and then the three returned once more to the shed

where the WHIZZER was kept.

"Shall I start the motor in here?" asked Mr. Fenwick, when he had

summoned several of the machinists whom he employed, to aid himself

and the young inventor.

"It would be better if we could take it outside," suggested Tom,

"yet a crowd is sure to gather, and I don't like to work in a mob of

people."

"Oh, we can easily get around that," said Mr. Fenwick. "I have two

openings to my aeroplane shed. We can take the WHIZZER out of the

rear door, into a field enclosed by a high fence. That is where I

made all my trials, and the crowd couldn't get in, though some boys

did find knot-holes and use them. But I don't mind that. The only

thing that bothers me is that I can't make the WHIZZER go up, and if

it won't go up, it certainly won't sail. That's my difficulty, and I

hope you can remedy it, Tom Swift."

"I'll do the best I can. But let's get the airship outside."

This was soon accomplished, and in the open lot Tom made a thorough

and careful examination of the mechanism. The motor was started, and

the propellers, for there were two, whirled around at rapid speed.

Tom made some tests and calculations, at which he was an expert, and

applied the brake test, to see how much horse power the motor would

deliver.

"I think there is one trouble that we will have to get over," he

finally said to Mr. Fenwick.

"What is that?"

"The motor is not quite powerful enough because of the way in which

you have it geared up. I think by changing some of the cogs, and

getting rid of the off-set shaft, also by increasing the number of

revolutions, and perhaps by using a new style of carburetor, we can

get more speed and power."

"Then we'll do it!" cried Mr. Fenwick, with enthusiasm. "I knew I

hadn't got everything just right. Do you think it will work after

that?"

"Well," remarked Tom, hesitatingly, "I think the arrangement of the

planes will also have to be changed. It will take quite some work,

but perhaps, after a bit, we can get the WHIZZER up in the air."

"Can you begin work at once?" asked the inventor, eagerly.

Tom shook his head.

"I can't stay long enough on this trip," he said. "I promised father

I would be back by to-morrow at the latest, but I will come over

here again, and arrange to stay until I have done all I can. I need

to get some of my special tools, and then, too, you will require

some other supplies, of which I will give you a list. I hope you

don't mind me speaking in this way, Mr. Fenwick, as though I knew

more about it than you do," added Tom, modestly.

"Not a bit of it!" cried the inventor heartily. "I want the benefit

of your advice and experience, and I'll do just as you say. I hope

you can come back soon."

"I'll return the first of the week," promised Tom, "and then we'll

see what can be done. Now I'll go over the whole ship once more, and

see what I need. I also want to test the lifting capacity of your

gas bag."

The rest of the day was a busy one for our hero. With the aid of Mr.

Damon and the owner of the WHIZZER, he went over every point

carefully. Then, as it was too late to attempt the return flight to

Shopton, he telegraphed his father, and he and Mr. Damon remained

over night with Mr. Fenwick.

In the morning, having written out a list of the things that would

be needed, Tom went out to Franklin Field, and repaired his own

monoplane. It was found that one of the electric wires connected

with the motor had broken, thus cutting off the spark. It was soon

repaired, and, in the presence of a large crowd, Tom and Mr. Damon

started on their return flight.

"Do you think you can make the WHIZZER work, Tom?" asked Mr. Damon,

as they were flying high over Philadelphia.

"I'm a little dubious about it," was the reply. "But after I make some

changes I may have a different opinion. The whole affair is too big

and clumsy, that's the trouble; though the electrical part of it is

very good."

Shopton was reached without incident, in about three hours, and

there was no necessity, this time, of vol-planing back to earth.

After a short rest, Tom began getting together a number of special

tools and appliances, which he proposed taking back to Philadelphia

with him.

The young inventor made another trip to Mr. Fenwick's house the

first of the following week. He went by train this time, as he had

to ship his tools, and Mr. Damon did not accompany him. Then, with

the assistance of the inventor of the WHIZZER, and several of his

mechanics, Tom began making the changes on the airship.

"Do you think you can make it fly?" asked Mr. Fenwick, anxiously,

after several days of labor.

"I hope so," replied our hero, and there was more confidence in his

tone than there had been before. As the work progressed, he began to

be more hopeful. "I'll make a trial flight, anyhow, in a few days,"

he added.

"Then I must send word to Mr. Damon," decided Mr. Fenwick. "He wants

to be on hand to see it, and, if possible, go up; so he told me."

"All right," assented Tom. "I only hope it does go up," he

concluded, in a low tone.

Tom Swift and His Wireless Message; Or, The Castaways of Earthquake Island · 第 7 / 25 章