sam lic
ceed riz cos a.th present necessity
in sim ith r
tu stru ctio sacrifice
a ,'in lly rin
ta beneficial 75
in rt.
F view -sam ith e
u tly 100
T tru com posed or
fo ils rig d
d ista r
sq sak alln ess com
p actn ss.
T tlie r
a sse tru s
5, 123
a 90°, rin
io
s lim tio is
a ices i-
re tio tro 130
.
I som rts li
c ecau its lle -re t
an ce, eed
10 r
ro clu sio f
p lsio t
in tiv g
th sam e,, t
15 tio ith ity lle in
th tte tly r
, eed even
p lle ire tio e
screw ith sam eed f
20 ile te
.
F led ts
w ill ily 95
ac il
lu tra tin
in sitio riz flig t. city efficiency
ta ith e
r cos eco ical
u tiliz tio effected en
40 ct= -which case eed e
h riz rtic tre ill e
0.
- eed V
cos riz tte r
h sista r,
a l-
35 sio velo-
.re o
stre rtic ri
z elo cities tiv V
sin cos ill .case failure the
motor, the projected area the propeller
blades being inadequate for reducing the
speed the fall sufficiently avoid disas-
_ ter, and this almost fatal impediment
55'to its commercial use.su ited
f a
tu rib 83
P 1,061,206, 1913, ich
h lfills ire ts, is
e lly tio
p also rra ts
w fly 90
m tic lly ill cau sed
to tio ith lic n
a .
30 lic its only.1,655,113
« cau r
h rio scillatio accom
p ascen escents, ill p
w ell ifie t
5 rin lete rtu rn
a rth . ith sam ject 103
o itte sed tra ’
to in, case e
sc rib rre d
o tiv are
p ith 119
lty tro llin g
m itio ese
a tlie iliz devices be
e ied ach s
a rtic rly so, lik ise 116
s riv lle
s tru tre size itc t
w ill ise ith
th even te
th llin ri- 120'
z lly itte ,thé t
fro ita ears.35 lts tta in
p tic ill ssa rily rio r
b ecau ith isio ch
a device, d
39 _above, t
u succession, sam tim tin g
sm lle illa tio tio ill
r its flig sid le
p rtio tiv re
55 losses tro llin g
m ean ill rre creased .
m tin 0.7 rre t,
th tic lly rfo t
b llin lic K>r-
45 ith eed less i-.
B ressed sists el
m tin ies e
a ise d
a lely lle so
s flig o
a lish lig rfu rim -
m ecessary rtic rly .
F ts, re
ig lic tio e
su ill ccessfu l
so tio iffe t
d ire tio 70
M tio eets .
Another very serious defect this kind
of flying machine, from the practical point
of view, found its inability support-
i0 ing itself the air in.
T lic it, r
r flo ith ity e
25 lle lin a
w ith riz
