For several hours the airship kept on her way, maintaining a height of about a mile, for when it was found that Mr. Damon could accommodate himself to thirty-five hundred feet the elevation rudder was again shifted to send the craft upward.
By using glasses the travelers could see crowds on the earth watching their progress in the air, and, though airships, dirigible balloons and aeroplanes are getting fairly common now, the appearance of one as novel and as large as the Red Cloud could always be depended upon to attract attention.
"Well, what do you say to something to eat?" proposed Mr. Sharp, coming into the main cabin, from the motor compartment. "It's twelve o'clock, though we can't hear the factory whistles up, here."
"I'm ready, any time you are," called Tom, from the pilot house. "Shall I cook grub, Mr. Sharp?"
"No, you manage the ship, and I'll play cook. We'll not get a very elaborate meal this time, as I shall have to pay occasional visits to the motor, which isn't running just to suit me."
The electrical stove was set going, and some soup and beefsteak from among the stores, was put on the fire. In spite of the fact that the day was a warm one in October, it was quite cool in the cabin, until the stove took off the chill. The temperature of the upper regions was several degrees below that of the earth. At times the ship passed through little wisps of vapor-clouds in the making.
"Isn't this wonderful!" exclaimed Mr. Damon, as he sat in an easy chair, partaking of some of the food. "To think that I have lived to see the day when I can take my lunch a mile in the air, with a craft flying along like a bird. Bless my knife and fork but it certainly is wonderful."
Mr. Sharp relieved Tom at the wheel, while the young inventor ate, and then, with the airship heading southwest, the speed was increased a trifle, the balloonist desiring to see what the motor could accomplish under a heavy load.
A drop of several hundred feet was made about an hour later, and, as this made it warmer, Mr. Damon, who was a great lover of fresh air, decided to go out on the platform in front of the cabin. This platform, and a similar one at the rear, was railed about, to prevent accidents. A fine view could be had from them much better than through the floor windows of the car.
"Be careful of the propeller," advised Tom, as his friend went outside. "I don't believe you're tall enough to be hit by the blades, but don't take any chances of standing on your tiptoes."