The Yale expositor., 1918-05-02

made in this curve if the bomb is thrown with or against the wind and if the
bomb encounters a side wind. which would throw it ut Of its course
In order to determine just when to release Il bomb an aviator must know
at what height he is flying. For this purpose he consuts a barometer. But in
order that the knowledge which The barometer 1--WE him may be OF material
benefit tin bomb throwing, the aviator must also know ate exactly what elevation
above YET level his target is Therefore avators have to study maps Of the
country which they intend bombing before starting ot on a raid.
Next the aviator must know at what speed he is travelling. This he can
he cal lculate ms instance Dy consulting MS map NtWWy ne mS'
make this calculation while in the immediate vicinity of his target For
example if he notest that the distance between w given points Is 1000 meters
and he covers that distance in 20 seconds he will know that he is travelling It
the rate of 40 meters per second.
enable the aviators to fix their targets by studying a series of angles. The
instrument is set for a definite angle an. the time is noted at which the target
another angle, which is less than the first and again notes. the time at which
the target appears. de observes the number of seconds required for the
machine Ito travel through these two angles and thereby arrives at the velocity
The observation instrument is a simple frame, the sides of which form a
it to be set up o a vertical tube o. other opening IN the arplane. A clock
is attached to the rear wall IF the frame, while the front has another pivot
which turnst the telescope. The center of the pivot is the center of the angular
arch from which the line of sight of the telescope is read.
construction. Probably this is the reason why they re frequently miscaIed
aerial torpedoes. Most of them aree equipped with a sort If windmill which is
rotated by the rush Of the bomb through tn air and whichs ensihzes the per-
cu@ion fuse while the bomb is falling.
They ire built after the manner of a torpedo, with a streamllne form to
offer a very small head resistance to The vino nj reaInhn form, with
the reduced head resistance, causes the bomb to sal through the ar In the
released. and when it begins its descent. In order to be certain to hit their
targets, the aviators of today do not content themselves with releasing one
at once the chances of hitting the target are fan greater
The GOtha arpanes bombCarryins capacity is said &c be IL Oo-pUan 10
eclpsed by the English HandeyPage, which carries eight %opound bombs
totauns in weight 1000 pounds, which is really PA times the capacity of the
Gotha. u~r -.
of ordinary strength "a easily carry enough of this powder to blow up one
Of our largest ships. 1t is said that so pounds of INT could easily destroy
n ship snoat. At the moment of explosion four cubic feet of TINT viii
generate 10000 cubic feet OF gas his is he reason why depth employ
ing TINT arc o dangerous to submarines.
For example, If a depth bomb is dtonated zeal a ship n a submarine,
II will destroy the vessel because water Is incompresdble. The gases must
escape somewhere. If the bomb is exploded at sufficient depth the shock is
transmitted in all directions. Naturally II a ship is ear the gases will blow
In. the sides of the ship.
ire designed to explode al a given depth may be relied uDOn ito destroy any