CHAPTER V
VOL-PLANING TO EARTH
For a moment after Mr. Damon's announcement Tom did not reply. Mr. Swift, too, seemed a little at a loss for something to say. They did not quite know how to take their eccentric friend at times.
"Of course I'll be glad of your company, Mr. Damon," said Tom; "but you must remember that my Butterfly is not like the Red Cloud. There is more danger riding in the monoplane than there is in the airship. In the latter, if the engine happens to stop, the sustaining gas will prevent us from falling. But it isn't so in an aeroplane. When your engine stops there"
"Well, what happens?" asked Mr. Damon, impatiently, for Tom hesitated.
"You have to vol-plane back to earth."
"Vol-plane?" and there was a questioning note in Mr. Damon's voice.
"Yes, glide down from whatever height you
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