It's the wheels.

I don't call this machine any great beauty, but it seems to cut the air well.

I suppose we'd better treat it as we did the Bleriot--let it go as it came, none the worse and none the wiser ?" "I think so.

But we have no other choice! That flyer is a suspicious fellow and he isn't taking any chances.

He's come fairly close to the flag, and now he's sheering off at an angle." "I don't blame him.