of the planes, and brings the machine downward; pulling the
steering-wheel post inward elevates the front edges of the planes and
causes the machine to ascend.

Turning the steering wheel itself to the right swings the tail rudder to
the left, and the machine, obeying this like a boat, turns in the same
direction as the wheel is turned. By like cause turning the wheel to the
left turns the machine to the left.

Automatic Control of Wings.

There are two wing tips, each of 6 feet spread (length) and 2 feet from
front to rear. These are hinged half way between the main surfaces to
the two outermost rear struts. Cables run from these to an automatic
device working with power from the engine, which automatically operates
the tips with the tilting of the machine. Normally the wing tips are
held horizontal by stiff springs introduced in the cables outside of the
device.

It was the successful working of this device which righted the Van
Anden craft when it was overturned in the squall of October 19th, 1909.
Previous to that occurrence Mr. Van Anden had looked upon the device as
purely experimental, and had admitted that he had grave uncertainty as
to how it would operate in time of emergency. He is now quoted as being
thoroughly satisfied with its practicability. It is this automatic
device which gives the Van Anden machine at least one distinctively new
feature.

While on this subject it will not be amiss to add that Mr. Curtiss does
not look kindly on automatic control. "I would rather trust to my own
action than that of a machine," he says. This is undoubtedly good
logic so far as Mr. Curtiss is concerned, but all aviators are not so
cool-headed and resourceful.

Motive Power of Van Anden.

A 50-horsepower "H-F" water cooled motor drives a laminated wood
propeller 6 feet in diameter, with a 17 degree pitch at the extremities,
increasing toward the hub. The rear end of the motor is about 6 inches
back from the rear transverse beam and the engine shaft is in a direct
line with the axes of the two horizontal rudders. An R. I. V. ball
bearing carries the shaft at this point. Flying, the motor turns at
about 800 revolutions per minute, delivering 180 pounds pull. A test of
the motor running at 1,200 showed a pull of 250 pounds on the scales.

Still Another New Aeroplane.

Another new aeroplane is that produced by A. M. Herring (an old-timer)
and W. S. Burgess, under the name of the Herring-Burgess. This is also
equ