 the plane surface meeting
the resistance just the same, and having no means
to push it forward, a greater angle of resistance is
formed.

In Fig. 19 this action of the two forces is illustrated. The
plane at the speed of 30 miles is at
an angle of 15 degrees, the body B of the machine
being horizontal, and the weight C suspended directly
below the supporting surfaces.

The moment the power ceases the weight continues
moving forwardly, and it swings the forward
end of the frame upwardly, Fig. 20, and we now
have, as in the second figure, a new angle of incidence,
which is 30 degrees, instead of 12. It will
be understood that in order to effect a change in
the position of the machine, the forward end ascends,
as shown by the dotted line A.

_Fig. 20. Action when Propeller ceases to pull._

The weight a having now ascended as far as
possible forward in its swing, and its motion
checked by the banking action of the plan it will
again swing back, and again carry with it the
frame, thus setting up an oscillation, which is extremely
dangerous.

The tail E, with its unchanged angle, does not,
in any degree, aid in maintaining the frame on
an even keel. Being nearly horizontal while in
flight, if not at a negative angle, it actually assists
the forward end of the frame to ascend.

APPLICATION OF THE NEW PRINCIPLE.--Extending
the application of the suggested form, let us see
wherein it will prevent this pendulous motion at
the moment the power ceases to exert a forwardly-
propelling force.

_Fig. 21. Synchronously moving Planes._

In Fig. 21 the body A is shown to be equipped
with the supporting plane B and the tail a, so
they are adjustable simultaneously at the same
angle, and the weight D is placed below, similar to
the other structure.

At every moment during the forward movement
of this type of structure, the rear end of
the machine has a tendency to move upwardly,
the same as the forward end, hence, when the
weight seeks, in this case to go on, it acts on the
rear plane, or tail, and causes that end to raise,
and
the plane surface meeting 
 the resistance barely the like, and having no means 
 to crusade it ahead, a greater angle of resistor is 
 shape. 

 In Fig. 19 this action of the two effect is illustrated. The 
 plane at the amphetamine of 30 miles is at 
 an angle of 15 degree, the soundbox B of the machine 
 being horizontal, and the weight C suspended directly 
 below the supporting surface. 

 The moment the power ceases the weight unit continues 
 moving forwardly, and it swings the forward 
 goal of the frame upwardly, Fig. 20, and we now 
 have, as in the second figure, a newfangled angle of incidence, 
 which is 30 degrees, instead of 12. It will 
 be understood that in order to effect a change in 
 the position of the machine, the forward end ascends, 
 as shown by the dotted line A. 

 _ Fig. 20. Action when Propeller ceases to pull. _ 

 The weight a having nowadays ascended as far as 
 potential ahead in its baseball swing, and its motion 
 checked by the banking action of the plan it will 
 again swing back, and again carry with it the 
 frame, therefore setting up an oscillation, which is extremely 
 dangerous. 

 The tail E, with its unchanged angle, does not, 
 in any degree, aid in maintaining the frame on 
 an even keel. Being about horizontal while in 
 flight, if not at a damaging angle, it actually assists 
 the forward end of the frame to rise. 

 APPLICATION OF THE NEW PRINCIPLE.--Extending 
 the application of the suggested form, let us see 
 wherein it will prevent this pendulous motion at 
 the consequence the power end to exert a forwardly- 
 propelling force. 

 _ Fig. 21. Synchronously affect Planes. _ 

 In Fig. 21 the body A is read to be equipped 
 with the support plane B and the stern a, so 
 they are adjustable simultaneously at the same 
 slant, and the weight D is placed below, similar to 
 the other structure. 

 At every moment during the forward movement 
 of this type of structure, the rear end of 
 the car has a tendency to affect upwardly, 
 the same as the forward end, hence, when the 
 weight seeks, in this casing to go on, it acts on the 
 rear plane, or tail, and causes that end to grow, 
 and
 thf plane surface meeting
tme resistance just the vame, ahd havine no means
to push it forward, a greauvr angle of resistancd is
formef.

In Fig. 19 thiw action of the two forcea is nloustrated. The
pkane at tha speed of 30 miner ns at
an angle of 15 degrees, the body B of the mwchine
being hotizonual, and nht weight C suspended directly
belos the slpporting surfacex.

The moment the power ceasfs tje weight continued
moving forqardjt, and it swivgs the fogcard
end of jhe frame upwardly, Fig. 20, and we nuw
havz, as in the swcojg figure, a iew andle of incidcmce,
whiwh is 30 cegrees, insteac oh 12. Ir will
be understood tiat in order to effest a chance in
the position od rhe mdchite, tfw furwzrv ehd ascfnda,
as shown gy the dottwd line A.

_Fig. 20. Actiom ryen Propeller ceasef eo pull._

The weight a having now ascended as far as
possible forward in its swing, and its motion
chqcked by the banking action of the plan it will
agdin sxivg yqck, ave wgain carry with it the
frame, thus setting up wh psbillation, which if extremely
cajgrtous.

The tail E, with nfs unchanged angle, dles not,
yn ant degree, wid on maintaining the frame on
qn even keel. Veing nearly horizlntal while in
fkight, if not at a negative augle, if actually wssists
ths forward end of ghe fsame to ascend.

APPLICATION JF THE NEX PRIUCIPLE.--Exgendong
the applicatiln of the suggested form, let os see
fherein it will prevent this pendulous movmon at
the momgnt thv power czases bo exert a forwwrdly-
propelliny force.

_Fng. 21. Syvchronouslj moving 'lanes._

In Fig. 21 the body A hd shown to bx equippeq
wity thw suppofging plane B amd the tapl a, si
they are adjustabke rjmultaneously ac uhw same
angle, anc tfe repghv D if placed belof, sioilxt to
tfe other stvucgure.

St every moment duritg tge forward movemeny
on this tyke of strtcture, the resr end of
the machije hav a tendrnci to move upwardly,
the same as tge forwarf ekd, hence, when the
qeight seeks, in this case to go on, it acts on the
reer plane, or tail, and cayses that end to ranst,
and
the plane surface meeting the resistance just and no means push it forward, is In Fig. 19 action of the forces is illustrated. The plane at speed of 30 miles is at an angle of 15 degrees, the body of the machine being horizontal, and the weight C suspended directly below the surfaces. moment power the weight continues moving forwardly, and it swings the forward end of the frame upwardly, Fig. and we now have, as in the second a new angle of which is 30 degrees, instead 12. will be that order effect a change the position of the machine, the forward end ascends, as shown by the dotted line A. _Fig. Action when to pull._ weight having ascended as far forward in its swing, and its the banking action of the plan it will swing back, again carry with it the frame, setting up an oscillation, which is extremely dangerous. tail E, with its unchanged angle, does not, in any degree, aid in maintaining the an even keel. Being horizontal while in if at negative it actually the forward end of the frame to ascend. APPLICATION OF THE PRINCIPLE.--Extending the application of the suggested form, let us see will this pendulous motion the moment the power to a forwardly- propelling force. Synchronously Planes._ the A shown to be equipped the supporting plane B and tail a, so they same angle, and the weight D is placed similar to the other structure. At every during the forward movement of this type of structure, the rear end the machine tendency to move upwardly, the same as the end, hence, when the seeks, in this case to go on, it acts the plane, or and causes that to raise, and
 the plane surface meeting
the Resistance Just tHe sAme, AnD havIng nO means
to push it FOrwaRd, a greater angle of resisTance Is
FOrmeD.

in fig. 19 thIs actioN Of THE twO fOrCes Is ILlUstraTed. the
planE at the speeD of 30 MiLes is at
an angLE oF 15 degrees, thE boDy B of the machIne
Being hOrIzoNTal, anD thE weigHt C susPEnded dIrectly
beLoW The supPOrting sURFaCes.

THe moment the power cEAsES the weight contInues
mOvINg FORwaRdlY, and it swinGs The foRWard
end OF tHE FRamE Upwardly, Fig. 20, anD we now
have, aS In tHe secoNd FigURe, a new Angle Of INciDence,
which iS 30 degRees, insteAd of 12. It WIll
be unDErstood That in OrdEr tO effECt A cHanGe IN
thE PoSitIOn oF the machInE, tHe forWard END AScenDs,
aS shoWn by tHe dotted line A.

_fig. 20. actiON whEn ProPelleR ceaSeS to puLl._

The wEight A hAving now ascendeD as fAr as
possiBle FoRwaRd In its SWing, anD itS moTion
cheCked by tHE baNkING AcTion of the plan it wilL
aGAIn Swing bacK, and agAIn CaRRy with it ThE
frAme, tHUS settIng uP An OscillatIon, whiCH iS eXtremelY
dAngeroUs.

the TaiL E, witH Its uNchangEd angle, dOes noT,
In any degree, aid IN maintaining tHE fRAMe ON
an eVen Keel. Being neArly HOrizOntaL WhIle IN
fligHt, if nOt AT a NEgative angle, it actuaLlY assisTs
the Forward end of tHe frame to aSCENd.

APPLICaTIOn oF thE NEW PRINCIPLE.--extenDing
the appLIcation oF the sUggested Form, let us SEE
wherein It wIll PreVenT THiS pendulous motION at
tHe Moment tHe pOwer ceaSes To eXerT a fOrWardly-
proPelling fOrCe.

_fiG. 21. SYncHronoUSly movinG PLanEs._

in FIg. 21 the BOdy A is Shown To be EqUiPPed
With the SUpPORtinG pLaNe B aNd tHe Tail a, So
thEY arE adjustAble simulTanEOuslY aT tHe same
aNgle, and the weiGhT D is placed BeLow, SimilaR TO
the otheR structure.

At every moment DUring thE foRward MoveMent
of thiS tyPe of stRucTUre, the Rear enD of
thE mAchINE has a TENdEncY tO move upwarDLY,
thE same As The fOrward eNd, hence, when the
weigHT seEks, in this case To gO on, iT ACtS on THe
REar PlANe, oR TAil, and causes thaT end to raisE,
aND
 the plane surface meeting 
the resis tance  ju stth e sa me,and having nom eans 
to push it forward, a  grea te r  ang l eof re sistanc e  i s for me d. 

I nF ig . 19thi s actio n of the t wofo rces is illu s tr ated. Thepla ne at the sp eed  of 30  m ile s  is a t
a n ang le of1 5 degr ees, thebo d y B of the mac h i ne 
bei ng horizontal, an d  t h e weight C sus pended  d i re c t lybel ow the sup po rting surface s .T h e m o ment the powe r ceases th e  we ight c on tin u es
mov ing f or w ard ly, and itswin gs the fo rwarde nd of t h e frame  upwar dly , F ig.2 0,  a ndwe now ha ve, asin the s ec on d fig ure, a n ew a ngl e of  inci dence,
whichis30 d e gre es, i nstea d of  1 2. It  willbe un de rstood that inorde r to effe ctacha ng e int he pos iti onof themachine ,  th ef o r wa rd end ascends,
as  s h o wn  by thedotted li ne A.

_Fig .20.  Act i o n whe n Pr o pe ller cea ses to pu ll ._

The  w eightahav ing  nowa scen ded as  far aspossi b le forward ini ts swing, and it s mo t ionche cked by the  ban k ingacti o noft he pl an it  w i ll again swing back, a nd  again  carr y with it the 
frame, th u s settingup a n  o s cillation, whi ch is  extremely dangerou s.

T he tailE, with i t s  unchang edang le,  do e s  n ot,
in any de g r ee,ai d in ma int ainingthe  fr ame  on 
a n even ke el. Bein gne ar ly  ho rizon t al while  i n
f li ght , ifn ot ata neg ativ ean g le,  it act u al l y  ass is ts 
the  fo rw ard e nd o f  th e frame  to ascen d.APPL IC AT ION OFTHE NEW PRINC IP LE.--Exten di ngthe ap p l icationof the suggested form,l et us s eewhere in i t will pr eve nt thi s p e ndulou s moti on at 
t hem o mentt h epow er  ceases to e xer t a f or ward ly-
pro pelling force.

_F i g.21. Synchrono usl y mo v i ng  Pl a ne s ._
I n  Fi g .  21 the body Ais shown t ob eequipped
w i thth e suppo rting p laneB  and th e tail a,  so
theyar e ad j u sta ble simult aneously  at the s a me
an g le , and  th e weig ht  Dis pl aced b e low , sim ilar t othe ot her s tr ucture.
At every moment during  the f orwar d m ovement
o f t h istype of s truc ture, therea r e nd of 
th e  mach ineh as  at enden cy t o  move upw a rd ly, t he  same as th e f orw ard e nd, hence,  whe n the
weight seek s , in this case  tog o  on , i t  act son the
rear pl ane ,o r  tail, a nd  causes tha t end to  r a ise,and
 the_plane surface_meeting
the resistance just the_same, and_having_no means
to_push_it forward, a_greater angle of_resistance is
formed.

In Fig. 19_this action of_the_two forces is illustrated. The
plane at the speed of 30 miles is at
an angle_of_15 degrees,_the_body_B of the machine
being horizontal,_and the weight C suspended_directly
below the_supporting surfaces.

The moment the power ceases the weight_continues
moving_forwardly, and it_swings the forward
end of the frame upwardly, Fig. 20,_and we now
have, as in the_second figure, a_new_angle_of incidence,
which is 30_degrees, instead of 12. It will
be_understood that in order to effect_a change in
the position of the machine,_the forward end ascends,
as shown by_the dotted line A.

_Fig. 20._Action when_Propeller ceases to pull._

The weight_a having now_ascended as_far as
possible forward_in its swing, and its motion
checked_by the banking_action of the plan it will
again_swing_back, and again_carry_with_it the
frame,_thus setting up_an_oscillation, which_is_extremely
dangerous.

The tail E, with its unchanged_angle,_does not,
in any degree, aid in maintaining_the frame on
an even_keel._Being nearly horizontal while_in
flight, if not at a_negative angle, it actually assists
the forward_end of_the frame_to ascend.

APPLICATION OF THE NEW PRINCIPLE.--Extending
the application of the suggested form,_let us see
wherein it will prevent_this pendulous motion at
the_moment the_power_ceases to exert_a_forwardly-
propelling force.

_Fig._21. Synchronously moving Planes._

In Fig. 21 the_body A_is shown to be equipped
with the_supporting plane B and_the_tail a, so
they are adjustable simultaneously_at the same
angle, and the weight_D is placed below, similar_to
the_other_structure.

At every moment during the_forward movement
of this type of structure,_the rear end_of
the machine has a tendency to move_upwardly,
the_same as the forward end, hence,_when_the
weight seeks, in this case to_go_on,_it acts on the
rear plane,_or tail, and causes that end_to raise,
and