) $8,183; Aubrun (Bleriot) $2,400; De Lesseps
(Bleriot) $2,300; Drexel (Bleriot) $1,700; Radley (Bleriot) $1,300;
Simon (Bleriot) $750; Andemars (Clement-Bayard) $100; Barrier (Bleriot)
$100.

Out of a total of $30,283, operators of Bleriot machines won $21,900,
again omitting Grahame-White's share. If the winnings with monoplane and
biplane could be divided so as to show the amount won with each type
of machine the credit side of the Bleriot account would be materially
enlarged.

The Most Popular Monoplanes.

While the number of successful monoplanes is increasing rapidly, and
there is some feature of advantage in nearly all the new makes, interest
centers chiefly in the Santos-Dumont, Antoinette and Bleriot machines.
This is because more has been accomplished with them than with any of
the others, possibly because they have had greater opportunities.

For the guidance of those who may wish to build a machine of the
monoplane type after the Santos-Dumont or Bleriot models, the following
details will be found useful.

Santos-Dumont--The latest production of this maker is called the "No. 20
Baby." It is of 18 feet spread, and 20 feet over all in depth. It stands
4 feet 2 inches in height, not counting the propeller. When this latter
is in a vertical position the extreme height of the machine is 7 feet
5 inches. It is strictly a one-man apparatus. The total surface area
is 115 square feet. The total weight of the monoplane with engine and
propeller is 352 pounds. Santos-Dumont weighs 110 pounds, so the entire
weight carried while in flight is 462 pounds, or about 3.6 pounds per
square foot of surface.

Bamboo is used in the construction of the body frame, and also for the
frame of the tail. The body frame consists of three bamboo poles about
2 inches in diameter at the forward end and tapering to about 1 inch at
the rear. These poles are jointed with brass sockets near the rear of
the main plane so they may be taken apart easily for convenience in
housing or transportation. The main plane is built upon four transverse
spars of ash, set at a slight dihedral angle, two being placed on each
side of the central bamboo. These spars are about 2 inches wide by 1
1/8-inch deep for a few feet each side of the center of the machine, and
from there taper down to an inch in depth at the center bamboo, and at
their outer ends, but the width remains the same throughout their entire
length. The planes are double surfaced with sil