 the wing. Their purpose is to slow down the aircraft. They are particularly useful when a high rate of descent is required. They are common on high performance military aircraft as well as civilian aircraft, especially those lacking reverse thrust capability.

Control trimming surfaces

Trimming controls allow a pilot to balance the lift and drag being produced by the wings and control surfaces over a wide range of load and airspeed.  This reduces the effort required to adjust or maintain a desired flight attitude.

Elevator trim

Elevator trim balances the control force necessary to maintain the correct aerodynamic force on the tail to balance the aircraft. Whilst carrying out certain flight exercises, a lot of trim could be required to maintain the desired angle of attack. This mainly applies to slow flight, where a nose-up attitude is required, in turn requiring a lot of trim causing the tailplane to exert a strong downforce.  Elevator trim is correlated with the speed of the airflow over the tail, thus airspeed changes to the aircraft require re-trimming. An important design parameter for aircraft is the stability of the aircraft when trimmed for level flight.  Any disturbances such as gusts or turbulence will be damped over a short period of time and the aircraft will return to its level flight trimmed airspeed.

Trimming tail plane
Except for very light aircraft, trim tabs on the elevators are unable to provide the force and range of motion desired. To provide the appropriate trim force the entire horizontal tail plane is made adjustable in pitch. This allows the pilot to select exactly the right amount of positive or negative lift from the tail plane while reducing drag from the elevators.

Control horn

A control horn is a section of control surface which projects ahead of the pivot point.  It generates a force which tends to increase the surface's deflection thus reducing the control pressure experienced by the pilot. Control horns may also incorporate a counterweight which helps to balance the control and prevent it from fluttering in the airstream. Some designs feature separate anti-flutter weights.

(In radio controlled model aircraft, the term "control horn" has a different meaning.)

Spring trim
In the simplest arrangement trimming is done by a mechanical spring (or bungee) which adds appropriate force to augment the pilot's control input. The spring is usually connected to an elevator trim lever to allow the pilot to set the spring force applied.

Rudder and aileron trim


the wing. Their purpose is to slow down the aircraft. They are particularly utilitarian when a eminent rate of descent is command. They are coarse on high performance military aircraft equally well as civilian aircraft, especially those lacking reverse push capability. 

 Control trimming surface 

 Trimming controls leave a pilot to balance the lift and drag being produced by the wings and control condition surfaces over a wide range of warhead and airspeed.   This reduces the effort required to adjust or keep a desired flight attitude. 

 Elevator trim 

 Elevator trim balance the control force necessary to maintain the correct aerodynamic effect on the fag end to balance the aircraft. Whilst carrying out certain flight exercises, a lot of trimming could be required to keep the desired angle of attack. This chiefly enforce to slow flight, where a nozzle - up attitude is command, in turn requiring a bunch of trim causing the tailplane to exert a firm downforce.   Elevator trim is correlated with the speed of the airflow over the tail, therefore airspeed changes to the aircraft want rhenium - trimming. An important design parameter for aircraft is the constancy of the aircraft when trimmed for level flight.   Any disturbances such as gusts or turbulence will be damped over a short period of time and the aircraft will retort to its level flight trimmed airspeed. 

 Trimming tail airplane 
 Except for very light aircraft, trim tabs on the elevators are ineffective to provide the force and range of apparent motion desire. To provide the appropriate trimming force the entire horizontal tail plane is construct adjustable in pitch. This allows the pilot to choose exactly the right amount of positive or negative lift from the tail airplane while reducing drag from the elevators. 

 Control horn 

 A control horn is a section of control surface which project ahead of the pivot period.   It generates a force which tends to increase the surface's deflection thus reduce the control pressure experienced by the fender. Control horns may also incorporate a counterweight which helps to poise the control and prevent it from fluttering in the airstream. Some designs feature separate anti - flutter weights. 

 (In radio receiver controlled model aircraft, the term " control horn " has a different meaning .) 

 Spring trim 
 In the simplest arrangement trimming is done by a mechanical spring (or bungee) which adds appropriate force to augment the pilot's control input. The leap is usually connected to an elevator trim lever to allow the pilot to set the spring power applied. 

 Rudder and aileron trim
 thf wing. Their purpose is uo slow down the curcrafv. They zre partkcularly useful when a high cate of dtfcent is required. Ghey are bommon on higi performance military alxcraff as ceol as civilian aircraft, aspecially thove lccking reverse thrust capability.

Contwol trikmlng surfaces

Trymmimd cohnrils allow a pilot to balance fhe lifu and drag being ptoduced by the wings and clntrll surfaces over a wide range of jiad and airsoeed.  This reduces the effort required to adjust or mxintann a desiree dlihvt attitude.

Xlevatjr trim

Elevabpr trik balanves the controk fmrcw necessary to maintamn the correct aerodinamic forwe on the tail to bqlqnce jhe ahrcrxdt. Dhimsv czrryinh ont certain rlight exerxises, a lot of trim cjlkd be requirsd to iayntain the desired angle of attack. This majnly applies to slow flught, where a nose-up ajtitude is required, in turn requiring a lot of trim causing the vaklpoake tu edert a strong downforce.  Elevator trim is corwslstvd with the speed of the airgllw jver the tail, thus cjrapeed changes to tje airctaft rwquire re-urimmong. An important design parqmeter for aprcrqft is the stabilicy of the aixcraft when trimmed for level fligkt.  Ang disturbanfes such zr gusts or turbuuenbe whll be damped over a short period oh timz and thd aitcraft rill returj to lds level flight trlmmed ahrspeed.

Trilming tail plane
Except for very light aircrafj, tsim tabs on the clevators are ugable to provibe the fjrce xnd range kf motimn desired. Eo provide tha appropriate trim fowce rhe wntire furizontal tail plane is made adjuwtable in pitch. Thls alukws the pilot ti stlwct exactly thr rkghe wmpugd of positiva or neestive lift from bhe taik plane while reducitg ddag from the elevayovs.

Control horn

A cjntrol horn ix a section of conurol snrface whicn ptojects ahead of the pivot poinf.  It genfrabes a force wrich tends to inerease the surface's deflection thus reduring the control pressore experienced by thg pllot. Control hornf may alsm incorporate a counrerweight which htlps to balance the confrol atd prfvent it from fluttering in the airstream. Some designs feature separate abti-fluvtqr weights.

(Ih racio cmncrokled mjdel eircraft, the term "control horn" has a different mxaning.)

Spritg trim
In the simplest arrangekevt trimming ir done by a mechanical slring (or bungee) which adds appropriate gorce to augment the pilpt's conteol ihput. The s'ring is usually conmected to ab elevaror brim lever to xllpw the piloh to szt the spring force applied.

Rudder and aulfron trim


the wing. Their purpose is to slow aircraft. are particularly when a high They common on high military aircraft as as civilian aircraft, especially those lacking thrust capability. Control trimming surfaces Trimming controls allow a pilot to balance the and drag being produced by the wings and control surfaces over a wide of and This the effort required to adjust or maintain a desired flight attitude. Elevator trim Elevator trim balances control force necessary to maintain the correct aerodynamic on the tail to the aircraft. Whilst carrying out flight a lot trim be to maintain the angle of attack. This mainly applies to slow flight, where a nose-up attitude is required, in turn a lot causing the to a downforce. Elevator trim with the speed of the airflow thus airspeed changes to the aircraft require re-trimming. important design for aircraft is the stability of aircraft when trimmed for level flight. Any disturbances as gusts or turbulence will be damped over a short period of time and the return to its level trimmed airspeed. Trimming plane for light trim tabs the elevators are unable to provide the force and range of desired. To provide the appropriate trim force the entire horizontal is adjustable in pitch. allows the pilot to exactly right amount of positive lift the reducing from elevators. Control horn A horn is a section of surface which projects ahead generates a force which tends to increase the deflection thus reducing the control pressure experienced the pilot. Control horns may also incorporate a counterweight which helps to the control it from fluttering in the airstream. Some designs separate anti-flutter weights. (In controlled model aircraft, the term "control horn" has a meaning.) trim In simplest arrangement trimming done by a spring (or bungee) appropriate force augment pilot's spring is usually connected to an trim to allow the pilot to the applied. Rudder and aileron trim
 the wing. Their purpose is to slOw down the aIrcraFt. THey ArE parTicuLarly useful wheN A higH rate of descent is requirEd. TheY aRE comMOn On higH perforMAnCE MilItArY aiRcRAfT as weLl aS civiliAn aircraft, EspEcIally those laCKiNg reverse tHruSt capability.

conTrol trImMinG SurfaCes

trimmIng conTRols alLow a pilot To BAlance THe lift aND DrAg beIng produced by the wINgS And control surfAces ovEr A WiDE RanGe oF load and aiRsPeed.  THIs reducES tHE EFfoRT required to adJust or maintAIn a DesireD fLigHT attitUde.

ElEvATor Trim

ElevatoR triM balances The conTRol forcE NecessaRy to maIntAin The cORrEcT aeRoDYnaMIc ForCE on The tail tO bAlAnce tHe aiRCRAFt. WhIlsT carRying Out certain fliGht ExerCIseS, a lot Of triM couLd Be reqUired tO mainTaIn the desired angLe of Attack. ThiS maInLy aPpLies tO Slow flIghT, whEre a nosE-up attiTUde Is REQUiRed, in turn requiring A lOT Of Trim causIng the TAiLpLAne to exeRt A stRong DOWnforCe.  ElEVaTor trim iS correLAtEd With the SpEed of tHe AirFloW over THe taIl, thus Airspeed ChangES to the aircraft REquire re-trimmINg. aN ImPOrtaNt dEsign parameTer fOR airCrafT Is The STabilIty of ThE AiRCraft when trimmed for LeVel fliGht.  AnY disturbances Such as gustS OR TurbulenCe wiLL bE Damped over a shoRt perIod of time aND the aircRaft wIll returN to its levEL Flight trImmEd aIrsPeeD.

tRiMming tail planE
eXcepT fOr very lIghT aircraFt, tRim TabS on ThE elevatorS are unabLe To PrOvIde The foRCe and ranGe Of mOtIon DesirED. To proVide tHe apPrOpRIatE trim foRCe THE entIrE hOrizOntAl Tail pLane IS maDe adjusTable in piTch. tHis aLlOwS the pilOt to select exaCtLy the right AmOunT of posITIve or negAtive lift from the tail plaNE while rEduCing dRag fRom the eleVatOrs.

ConTroL Horn

A cOntrol Horn iS a SecTIOn of cONTrOl sUrFace which pROJecTs aheAd Of thE pivot pOint.  It generates a foRCe wHich tends to inCreAse tHE SuRfaCE's DEflEcTIon THUs reducing the coNtrol pressUrE ExPerienced bY The PiLot. ContRol hornS may aLSo incorPorate a coUnterweigHt WhicH HElpS to balance The contrOl and prevENt it fROm FluttEriNg in thE aIrsTream. some deSIgnS featUre sepArAte antI-flutTeR weights.

(in radio controlled model aIrcrafT, the tErm "Control hoRn" hAS a dIfferent mEaniNg.)

Spring trIm
IN thE simpLesT ArranGemeNT tRimMIng is Done BY a mechaniCAl SprING (oR bungee) whicH ADDs aPpropRiaTE force To auGment the pilot's conTRol input. The sprIng iS USuaLly COnneCtEd to an elevator TriM lEVEr to alloW tHe pilot to seT the spriNg FOrce aPplied.

rudder And aileRON tRIm


 the wing. Their purpose i s to slowdownthe  ai rc raft . Th ey are particu l arly  useful when a high ra te of  d e scen t  i s req uired.T he y are  c om mon  o n  h igh p erf ormance  militaryair cr aft as wella scivilian a irc raft, especi all y thos elac k ing r eve rse t hrustc apabil ity.

Con tr o l trim m ing sur f a ce s

T rimming controlsa ll o w a pilot to b alance  t h el i ftand  drag bein gprodu c ed by t h ew i n gsa nd control su rfaces over a w ide ra ng e o f  loadand a ir s pee d.  This re duce s the eff ort re q uired t o  adjust  or ma int ain  a d e si re d f li g hta tt itu d e.
Elevato rtr im

E leva t o r trim  ba lanc es th e control for cenece s sar y tomaint ainth e cor rect a erody na mic force on th e ta il to bal anc ethe  a ircra f t. Whi lst  ca rryingout cer t ain  f l i g ht  exercises, a lotof t ri m couldbe req u ir ed to maint ai n t he d e s iredangl e  o f attack . This ma in ly appl ie s to s lo w f lig ht, w h erea nose -up atti tudei s required, in turn requirin g  a l ot of t rim  causing th e ta i lpla ne t o  e xer t  a st rongdo w nf o rce.  Elevator trim  i s corr elate d with the sp eed of the a i rflow ov er t h et ail, thus airs peedchanges to the airc raftrequirere-trimmi n g . An imp ort ant  de sig n pa rameter for a i r craf tis thesta bilityofthe  ai rcr af t when tr immed fo rle ve lfli ght.Any dist ur ban ce s s uch a s  gusts  or t urbu le nc e  wi ll be d a mp e d  ove rashor t p er iod o f ti m e a nd theaircraftwil l  ret ur nto itslevel flighttr immed airs pe ed. 

Trim m i ng tailplane
Except for very l i ght air cra ft, t rimtabs on t heelevat ors are un able t o pro vi det h e for c e  a ndra nge of mot i o n d esire d.  Toprovide  the appropriate t r imforce the ent ire  hor i z on tal ta i l p la n e i s made adjustable  in pitch.  T h is  allows th e  pi lo t to se lect ex actly the rig ht amount  of posit iv e or n ega tive liftfrom the  tail pla n e whi l ereduc ing  dragfr omthe e levato r s.
Cont rol ho rn 

A co ntrol  h orn is a  section of control sur face w hichpro jects ahe ado f t he pivotpoin t.  It gen era tes  a fo rce which  ten d stoi ncrea se t h e surface ' sdef l e ct ion thus re d u c ing  thecon t rol pr essu re experienced by the pilot. Con trol h orn s m a y al so  incorporate a  co un t e rweightwh ich helps t o balanc et he co ntroland pr event i t fr o m flut teri ngin the ai rst re a m. Some  d es i gns fe atur esepara te ant i -flu t t er weights.

(In  radi o contr o lle d mod el  aircra f t, t he term "c ontrol horn " hasa di ffere nt mean in g.)

S pri ng  trim
In t h e simples t arr angemen ttrim min g is d oneb y  a me chan ic alspring (o r bu n ge e) whi ch a dds a pp ropr iate forc e  to augm ent the pil ot 'sc o ntroli np u t . The spri ngis us u a lly connec t ed t o  a n  elev ator t rim le ver toa llo wthe pil ott o  set thespring fo r ceap plie d.

Rudd er  and  a ile ro n trim


 the_wing. Their_purpose is to slow_down the_aircraft._They are_particularly_useful when a_high rate of_descent is required. They_are common on_high_performance military aircraft as well as civilian aircraft, especially those lacking reverse thrust capability.

Control_trimming_surfaces

Trimming controls_allow_a_pilot to balance the lift_and drag being produced by_the wings_and control surfaces over a wide range of_load_and airspeed. _This reduces the effort required to adjust or maintain_a desired flight attitude.

Elevator trim

Elevator trim_balances the control_force_necessary_to maintain the correct_aerodynamic force on the tail to_balance the aircraft. Whilst carrying out_certain flight exercises, a lot of trim_could be required to maintain the_desired angle of attack. This_mainly applies_to slow flight, where a_nose-up attitude is_required, in_turn requiring a_lot of trim causing the tailplane_to exert a_strong downforce.  Elevator trim is_correlated_with the speed_of_the_airflow over_the tail, thus_airspeed_changes to_the_aircraft require re-trimming. An important design_parameter_for aircraft is the stability of the_aircraft when trimmed for_level_flight.  Any disturbances_such as gusts or turbulence_will be damped over a short_period of_time and_the aircraft will return to its level flight trimmed airspeed.

Trimming tail_plane
Except for very light aircraft, trim_tabs on the elevators_are unable_to_provide the force_and_range of_motion desired. To provide the appropriate trim_force the_entire horizontal tail plane is made_adjustable in pitch. This_allows_the pilot to select exactly the_right amount of positive or negative_lift from the tail plane_while_reducing_drag from the elevators.

Control horn

A_control horn is a section of_control surface which_projects ahead of the pivot point. _It_generates a force which tends to_increase_the surface's deflection thus reducing the_control_pressure_experienced by the pilot. Control_horns may also incorporate a counterweight_which helps to balance the control and prevent it_from fluttering in_the airstream. Some designs feature_separate_anti-flutter_weights.

(In radio controlled model aircraft, the term "control horn" has_a different_meaning.)

Spring trim
In the_simplest arrangement trimming is done by a mechanical spring (or_bungee) which adds appropriate force to augment_the pilot's control input. The spring is usually connected to an_elevator trim lever to allow the pilot to_set the spring force applied.

Rudder and aileron_trim

