Evening star., 1928-04-22

Continued from First Page)
only an approximate idea OF position
and ground speed could be estimated.
Regarding instruments and compasses.
lot Of work still remains to be done
IN this field. but science and brain
power are overcoming these problems,
and better and more reliable instru-
mments are being produced from time
to time
Since Aicock and Whitten- Brown
crossed from Newfoundland 70 ireland
In their Vickers-Vimy machine in 1919
many improvements have taken place
IN instruments and compasSes making
TRANSATLANTIC aviation a much more
simple and less risky undertaking than
il was when they performed their mar
geious feat
While on their fight. when fiying
through fog and clouds, they had no
idea Of the position of the machine In
relation 10 the ground
Turn Indicators invented.
Since then, however. many useful turn
indicators have been introduced which
snow the pilot at a glance. when flying
at night or through fog or clouds.
whether his machine Is on a level keel
turning or banking.
Next, what kind OF machines will be
used on the routes OF the future? II I
may be permitted 10 voice an opinion, |
would say multi-enRined flying boats
capable Of riding out the toughest sea
THIS may be received with a smile,
but IL Is my thought that the transat-
iantie flying boat Of the future will In
/ effect be flying submarine which, In
addition 10 being q very deadly weapon
IN war. would also have considerable
commercial value II would fold its
wings and be able not alone 10 fiy, but
ride over and through the waves.
One difficulty with the large flying
| boat at present In that when boat Is
/ loaded Tor long distance or ocean
flight. II Is an exceedingly dificult Job
/ 70 get il 10 take of, owing 10 the en0r-
/ nous drag Of The water.
THIS Is matter which can quite
/ easily be overcome. Special light raiIa
ways. couple 0f miles in length, facing
/ ln the direction Of the prevailing wind.
/ can be laid down. and the boat loaded
onto specially constructed truck In
The rear of the electric locomotive.
speed From Locomotive.
Then when The locomotive Is travel.
ing st rate 0f about 30 miles sn hour
Z tit" engines of the flying boat can be
opened np and she viii lift easily into
the air past over the engine and wing
on her way
/ The question 81 aerial navigation also
1 requires considerable thought The APP
/ piication of marine na yigation methods
W aerial navigation Is unsatisfactory IA
/ viii not do at all Aerial navigation Is
technique unto Itself and should be
considered from the standpoint NJ flying
end suitable instruments and equipment
should be produced 10 meet the require
! msDts u the cir,
I Another useful point which sugRests
Itself Is quite easy 10 put into applica-
ton immediately. n Is the laying dlDNn
NJ large signs easily distingiishable
tFoIA the air beside coast lighthouses
| with the longitude ana latitude 0f thf
position ciesTly marked
Lighthouses are the principal land
marks ia marine navigation, but theil
/ usefulness 20 the aviator H. almost MI
Overhead ibe light flashes cannot be
seen bit the signs suggest could be
seen by night snd be illuminated 10 II
I68sefvefsDie st night They would tefl
the pilot ekaclly where lge Was
So. 10 sum up the htlsntie has been
f0Xn from east N vest and from Wesi
10 esEt Tbs pj0nseF work 10 great