human
Ay me, to think of a nice pleasant young gentleman like Mr. Wilfred lying at death’s door through one o’ they dratted airyplanes! That venturesome he always was, as a little small chiel. ’Tis against Nature to try to fly like the birds, that’s what I say, and what can you expect? The world do be turning topsy-turvy, and all through they Germans.
gpt
What is it?
human
I’ve got an idea,
gpt
Well, sleep on it, old man.
human
You know very well that I can’t get a wink till I see daylight.
gpt
Then you’ve got about five hours. Good night!
human
Of course I meant a light on the problem; you’re so literal. You see, the evolution of a perfectly stable machine——
gpt
I suppose I must be a martyr, he said,
human
You’re a good sort, Tom. Really I’d like to know what you think of it. You see, an aeroplane ought to balance itself automatically, and I’ve got an idea for automatically adjusting the surfaces of the planes so that the machine will instantly adapt itself to gusts of wind, side-slips, and so on.
gpt
Jolly good idea! Good night.
human
Hold hard. You haven’t heard the idea yet. My arrangement would be electric. Beyond the extremities of the frames I’d have a light framework on which an extension of the plane could be pushed out by a steel rod actuated by a small electric motor.
gpt
I can go to sleep at once, then, because that won’t work. It means more weight.
human
No, no; we’ll argue it out. Weight’s becoming less and less important every day. Look at the weight of bombs an aeroplane can now lift. Anyhow, the point is that the motor would be controlled by the movement of the plane. A sphere moving in a horizontal channel would be affected by the slightest inclination of the plane. I’d arrange by a series of electrical contacts——
gpt
How?
human
I haven’t worked out all the details yet; how could I? But the effect would be that the farther the sphere moved the farther the rod would push out the extension of the plane on the side required. And when the aeroplane had righted itself, the sphere would return to neutral.
gpt
My sleepy brain is fairly dazed with your rods and spheres and the rest. Hang all that! The question is, would the extension idea work? Would the lengthening of the planes meet the case?
human
Of course it would. It’s easily proved. All you want is a glider.
gpt
Well, old man, the idea’s ripping, and being a reasonable chap, you’ll agree that you’ve got to go one step at a time. I don’t say you’re wrong, but treat me as a bit of a sceptic, who wants everything proved.
human
Very well; I’m not unreasonable. We’ll set to work and make a glider; then you’ll see.
gpt
Righto! Feel more easy now? Hope you won’t wake in the night.
human
I say, Bob.
gpt
What?
human
You’ll have to cut into your tenner at last. Bye-bye!