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If the room be too short for a glider to finish its flight, the elevation at which it strikes the wall is the measure of its efficiency. Out-of-door flights are impracticable with these very frail models when there is the slightest breeze blowing. On a perfectly calm day, however, much better fun can be got out of doors than in, owing to the greater space available.
The big airship was gotten in shape for the voyage, and then, after a final trial of the glider, it was taken apart and put aboard the Falcon, ready for use on the gale-swept plains of Siberia.
Then he realized what it was. He was plastered against the side of the cabin! He realized that Pegasus was no longer a rocket, but a glider, traveling in a horizontal position. One part of the wall had become the deck when the rocket changed from vertical to normal flight. He saw the marmoset, still upright, riding smoothly.
For the gliding experiments of 1901 it was decided to retain the form of the 1900 glider, but to increase the area to 308 square feet, which, the brothers calculated, would support itself and its operator in a wind of seventeen miles an hour with an angle of incidence of three degrees.
He had made several models of the air glider, changing them as he found out his errors, and at last he had hit on the right shape and size. Midway of the big glider, on which work was now well started, there was to be an enclosed car for the carrying of passengers, their food and supplies. Tom figured on carrying five or six.
Rick's chin dropped on his chest and stayed there. Finally he gasped, "You mean the wings are to turn the upper section into a glider in order to land it again?" Dr. Gould put a hand on his shoulder and nodded gravely. "Ole Gee-Gee is pleased with you. You have demonstrated something between the ears besides strawberry Jello. You have just described the objective of Project Pegasus.
Now tell me more about this Mr. Petrofsky." Which Tom did. The days that followed were indeed busy ones for Tom. The young inventor made a model air glider that sailed fairly well, but he knew it would have to work better to be successful, and he bent all his energies in that direction. Meanwhile Mr. Damon had been told of the prospective trip. "Bless my bank book! Of course I'll go," he said.
But, compared to the terrific power of the wind, the air glider was practically at a standstill, and this was remarkable when one considers the force of the hurricane that was blowing above below and through it. For actually that was what the hurricane was doing.
The aeroplane acts in a similar manner, and, unless some means are taken to prevent it, it will turn over. Let us now see how the pilot worked the "Wright" glider. Suppose the machine tilted down on one side, while in the air, the pilot would pull down, or warp, the edges of the planes on that side of the machine which was the lower.
"I don't know about that," answered the Russian. "It is almost impossible to rescue a person from Siberia. Of course it is not going to be easy to locate the lost mine, but as for that we can keep on searching, that is if the air glider works, but there are so many forces to fight against in rescuing a prisoner."
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