engine center line

aerodynamic center air communication center aircraft center line aircraft center - of - gravity aircrew training center airfoil center line air traffic control center align the aircraft with the center line area control center area forecast center barrette center line bottom dead center center engine center instrument panel center lift center line center line approach center of air pressure center of depression center of force center of gravity center of mass center of pressure center pedestal center section panel center the autopilot center the wiper center wing center wing section center zero scale collecting center control center elastic center entry switching center address flight information center flight-test center flow control center flying training center forecast center identify the center line keep the ball centered lock over center message center meteorological center oceanic area control center octave-band center frequency on aircraft center line pressure center radar information center radar processing center regional control center rescue coordination center runway center line search and rescue center service center stand center line taxiway center liner top dead center transmitting center address upper area control center upper information center weather message switching center windshield center post World area forecast center

aerodynamic center air communication center aircraft center line aircraft center - of - gravity aircrew training center airfoil center line air traffic control center align the aircraft with the center line area control center area forecast center barrette center line bottom dead center center engine center instrument panel center lift center line center line approach center of air pressure center of depression center of force center of gravity center of mass center of pressure center pedestal center section panel center the autopilot center the wiper center wing center wing section center zero scale collecting center control center elastic center entry switching center address flight information center flight-test center flow control center flying training center forecast center identify the center line keep the ball centered lock over center message center meteorological center oceanic area control center octave-band center frequency on aircraft center line pressure center radar information center radar processing center regional control center rescue coordination center runway center line search and rescue center service center stand center line taxiway center liner top dead center transmitting center address upper area control center upper information center weather message switching center windshield center post World area forecast center

abandon the takeoff abeam the left pilot position abeam the right pilot position abort the flight abort the takeoff above the glide slope absorb the shock energy accelerate the rotor accelerate to the speed adhere to the flight plan adhere to the track adjust the cable adjust the compass adjust the engine adjust the heading advice to follow the controller's advance affect the regularity affect the safety align the aircraft align the aircraft with the center line align the aircraft with the runway alter the heading amplify the signal apparent drift of the gyro apply the brake approach the beam approve the limitations approve the tariff area of coverage of the forecasts arrest the development of the stall arrive over the aerodrome assess the damage assess the distance assess the suitability assume the control attain the power attain the speed at the end of at the end of segment (полета) at the end of stroke (поршня) at the ground level at the start of cycle at the start of segment (полета) avoid the obstacle backward movement of the stick balance the aircraft balance the control surface balance the propeller bear on the accident before the turbine below the glide slope below the landing minima bend the cotterpin ends be off the track be on the level on the hour block the brake boundary of the area brake the propeller break the journey bring the aircraft back bring the aircraft out by altering the heading cage the gyroscope calibrate the compass calibrate the indicator calibrate the system calibrate the tank cancel the drift cancel the flight cancel the forecast cancel the signal capture the beam carry out a circuit of the aerodrome carry out the flight center the autopilot center the wiper change the frequency change the pitch change the track check the reading chop the power circle the aerodrome clean the aircraft clean up the crack clearance of the aircraft clearance over the threshold clear for the left-hand turn clear the aircraft clear the obstacle clear the point clear the runway climb on the course close the buckets close the circuit close the flight come clear of the ground commence the flight commence the landing procedure compare the readings compensate the compass compensate the error compile the accident report complete the circuit complete the flight complete the flight plan complete the turn compute the visual range conditions beyond the experience conditions on the route considering the obstacles construct the procedure containerize the cargo continue operating on the fuel reserve continue the flight continue the takeoff contribute towards the safety control the aircraft control the pitch convert the frequency convey the information correct the trouble correspond with the operating minima counteract the rotor torque coverage of the chart cover the route crosscheck the readings cross the airway data on the performance decelerate in the flight decelerate the aircraft to decrease the deviation decrease the pitch decrease the speed de-energize the bus define the failure deflate the tire deflect the control surface (напр. элерон) delay the turn delimit the runway delimit the taxiway delineate the runway delineate the taxiway deliver the baggage deliver the clearance denote the obstacle denoting the obstacle depart from the rules departure from the standards depress the pedal detach the load detach the wing determinate the cause determine amount of the error determine the delay determine the extent of damage determine the friction determine the sign of deviation detract from the safety development of the stall deviate from the flight plan deviate from the glide slope deviate from the heading deviation from the course deviation from the level flight discharge the cargo disclose the fares discontinue the takeoff disengage the autopilot displace the center-of-gravity disregard the indicator disseminate the forecast drain the tank draw the conclusion drift off the course drift off the heading drop the nose duck below the glide path ease the aircraft on effect adversely the strength (напр. фюзеляжа) elevation of the strip eliminate the cause of eliminate the hazard eliminate the ice formation eliminate the source of danger (для воздушного движения) enable the aircraft to endanger the aircraft endange the safety endorse the license energize the bus enforce rules of the air engage the autopilot ensure the adequate provisions enter the aircraft enter the aircraft stand enter the airway enter the final approach track enter the spin enter the tariff into force enter the traffic circuit enter the turn entry into the aerodrome zone entry into the flare erection of the gyro establish the characteristics establish the flight conditions establish the procedure exceeding the stalling angle exceed the stop execute the manoeuvre execute the turn expedite the clearance express the altitude extend the agreement extend the landing gear extend the legs extreme aft the center-of-gravity extreme forward the center-of-gravity eye height over the threshold fail into the spin fail to follow the procedure fail to observe the limitations fail to provide the manuals fall into the spin feather the propeller file the flight plan first freedom of the air flight inbound the station flight outbound the station flight over the high seas flight under the rules fly above the weather fly at the altitude fly into the sun fly into the wind fly on the autopilot fly on the course fly on the heading fly the aircraft 2. пилотировать воздушное судно fly the beam fly the circle fly the glide-slope beam fly the great circle fly the heading fly the rhumb line fly under the autopilot fly under the supervision of focus the light follow the beam follow the glide slope follow up the aircraft forfeit the reservation freedom of the air fuel the tank fulfil the conditions gain the air supremacy gain the altitude gain the glide path gain the power gain the speed gather the speed get into the aerodrome get on the course get the height give the way go out of the spin govern the application govern the flight govern the operation grade of the pilot licence guard the frequency handle the baggage handle the flight controls have the runway in sight head the aircraft into wind hold on the heading hold over the aids hold over the beacon hold the aircraft on the heading hold the brake hold the heading on the compass hold the position hold the speed accurately hover at the height of hovering in the ground effect identify the aerodrome from the air identify the aircraft identify the center line impair the operation impair the safety impose the limitations in computing the fuel in conformity with the specifications increase a camber of the profile increase the pitch increase the speed indicate the location from the air inherent in the aircraft initiate the turn install in the aircraft install on the aircraft intercept the beam intercept the glide slope International Relations Department of the Ministry of Civil Aviation interpretation of the signal in the case of delay in the event of a mishap in the event of malfunction introduction of the corrections issue the certificate jeopardize the flight judge the safety keep clear of the aircraft keep out of the way keep tab on the fleet keep the aircraft on keep the altitude keep the ball centered keep the pace keep to the minima kick off the drift kill the landing speed landing off the aerodrome land into the wind land the aircraft latch the pitch stop (лопасти воздушного винта) latch the propeller flight stop lateral the center-of-gravity lay the route lead in the aircraft lead out the aircraft leave the airspace leave the altitude leave the plane leave the runway level the aircraft out lie beyond the range line up the aircraft load the gear load the generator load the structure lock the landing gear lock the landing gear down lock the landing gear up lock the legs longitudinal the center-of-gravity lose the altitude lose the speed loss the control lower the landing gear lower the legs lower the nose wheel maintain the aircraft at readiness to maintain the altitude maintain the course maintain the flight level maintain the flight procedure maintain the flight watch maintain the flying speed maintain the heading maintain the parameter make a complaint against the company make the aircraft airborne make the course change make the reservation manipulate the flight controls mark the obstacle mean scale of the chart meet the airworthiness standards meet the conditions meet the specifications misjudge the distance modify the flight plan monitor the flight monitor the frequency moor the aircraft mount on the frame move off from the rest move the blades to higher move the pedal forward name-code of the route neglect the indicator note the instrument readings note the time observe the conditions observe the instruments observe the readings obtain the correct path obtain the flying speed obtain the forecast offer the capacity off-load the pump on the base leg on the beam on the cross-wind leg on the down-wind leg on the eastbound leg on the final leg on the left base leg on the speed on the upwind leg open the buckets open the circuit open the door inward outward operate from the aerodrome operate under the conditions overcome the obstacle overcome the spring force overflying the runway overpower the autopilot overrun the runway overshoot capture of the glide slope over the territory over the top over the wing park in the baggage participation in the investigation passing over the runway pass the signal past the turbine perform the service bulletin pick up the signal pick up the speed pilot on the controls pitch the nose downward place the aircraft place the flaps in plane of symmetry of the aeroplane plot the aircraft potential hazard to the safe power the bus present the minimum hazard preserve the clearance pressurize the bearing produce the signal profitability over the route prolongation of the rating properly identify the aircraft protect the circuit prove the system pull out of the spin pull the aircraft out of pull the control column back pull the control stick back pull up the helicopter puncture the tire push the aircraft back push the aircraft down push the control column push the control stick put into the spin put on the course put the aircraft into production put the aircraft on the course put the aircraft over raise the landing gear reach the altitude reach the flight level reach the glide path reach the speed reach the stalling angle read the drift angle read the instruments receive the signal record the readings recover from the spin recover from the turn recovery from the manoeuvre recovery from the stall recovery from the turn rectify the compass reduce the hazard reestablish the track regain the glide path regain the speed regain the track register the aircraft release the aircraft release the landing gear release the landing gear lock release the load release the uplock relocate the plane's trim remedy the defect remedy the trouble remove the aircraft remove the crack remove the tangle render the certificate renew the license renew the rating replan the flight report reaching the altitude report reaching the flight level report the heading reset the gyroscope restart the engine in flight restore the system restrict the operations resume the flight resume the journey retain the lever retract the landing gear return the aircraft to service reverse the propeller roll in the aircraft roll into the turn roll left on the heading roll on the aircraft roll on the course roll out of the turn roll out on the heading roll out the aircraft roll right on the heading rotate the aircraft rotate the bogie rules of the air run fluid through the system run off the runway run out the landing gear schedule the performances seat the brush second freedom of the air secure the mishap site select the course select the flight route select the frequency select the heading select the mode select the track angle separate the aircraft serve out the service life set at the desired angle set the course set the flaps at set the heading set the propeller pitch set the throttle lever set up the speed shift the center-of-gravity shop out the skin simulate the instruments responses slacken the cable slave the gyroscope smooth on the heading smooth out the crack smooth out the dent smooth the signal space the aircraft spin the gyro rotor state instituting the investigation (авиационного происшествия) state submitting the report (об авиационном происшествии) steady airflow about the wing steer the aircraft stop the crack propagation stop the leakage submit the flight plan substitute the aircraft supervision approved by the State supply the signal swing the compass swing the door open switch to the autopilot switch to the proper tank takeoff into the wind take off power to the shaft take over the control take the bearing take the energy from take the readings take the taxiway take up the backlash take up the position tap air from the compressor terminate the agreement terminate the control terminate the flight test in the wind tunnel test the system the aircraft under command the route to be flown the route to be followed the runway is clear the runway is not clear the search is terminated through on the same flight throughout the service life tighten the turn time in the air time the valves titl of the gyro to define the airspace transfer the control transit to the climb speed trim the aircraft turn into the wind turn off the system turn on the system turn the proper tank on unarm the system uncage the gyroscope unfeather the propeller unlatch the landing gear unlatch the pitch stop (лопасти воздушного винта) unstall the aircraft unstick the aircraft uplift the freight violate the law wander off the course warn the aircraft wind the generator with decrease in the altitude withdraw from the agreement with increase in the altitude within the frame of within the range withstand the load work on the aircraft write down the readings

aircraft on flight aircraft on register available on request bear on the accident be on the level on the hour climb on the course closing on Commission on Illumination Committee on Aircraft Noise Committee on Aviation Environmental Protection Committee on Joint Support Committee on Unlawful Interference conditions on the route continue operating on the fuel reserve convention on international civil aviation data on the performance ease the aircraft on effect on an aircraft effect on flight characteristics effect on operating safety engine on flight on heading fly on instruments fly on the autopilot fly on the course fly on the heading get on the course hold on the heading hold the aircraft on the heading hold the heading on the compass information on faults install on the aircraft involve matters on airworthiness keep tab on the fleet keep the aircraft on land on water lift an aircraft on lights on request mount on the frame on aircraft center line on board on final on go-around on impact on position on request on route on shock strut recovery on takeoff on the base leg on the beam on the cross-wind leg on the down-wind leg on the eastbound leg on the final leg on the left base leg on the speed on the upwind leg operate on fuel pilot on the controls put on the course put the aircraft on the course reduction on fare reflect on airworthiness roll left on the heading roll on the aircraft roll on the course roll out on the heading roll right on the heading run on set on (курс полета) slope on runway smooth on the heading stability on water (после аварийной посадки воздушного судна) stand on starting on external power switch on take on load through on the same flight transmit on frequency of turn on base leg 2. третий разворот turn on crosswind leg 2. первый разворот turn on downwind leg 2. второй разворот turn on final 2. четвертый разворот turn on the system turn the proper tank on work on the aircraft

align the aircraft with the center line align the aircraft with the runway approach with flaps down bank with ailerons charge with duty compliance with airworthiness standards comply with airworthiness standards comply with published tariff consort with stream (в воздушном потоке) correspond with the operating minima couple with a gland cover an aircraft with equip an aircraft with fill an aircraft with fit an aircraft with flight range with no reserves handle with care in conformity with the specifications interference with reception jump with parachute landing distance with reverse thrust margin with stick fixed meet with an accident prove compliance with replenish with lubricant show compliance with takeoff with crosswind thunderstorm with duststorm thunderstorm with hail with an engine suddenly failed with decrease in the altitude with increase in the altitude with rated power flight

control n acceleration control line flow restrictor acceleration control unit aerodrome approach control system aerodrome control aerodrome control communication aerodrome controlled zone aerodrome control point aerodrome control radar aerodrome control radio aerodrome control sector aerodrome control service aerodrome control tower aerodrome control tower clearance aerodrome control unit aerodrome traffic control zone aerodynamic control aerodynamic roll control aeronautical information control aileron control system aileron trim tab control system air control aircraft control loss aircraft control margin aircraft control system aircraft control transfer aircraft sanitary control air intake spike control air mixture control airport control tower air traffic control 2. ответчик системы УВД Air Traffic Control Advisory Committee air traffic control area air traffic control boundary air traffic control center air traffic control clearance air-traffic control instruction air traffic control loop air traffic control procedures air traffic control radar air traffic control routing air traffic control service air traffic control system air traffic control unit airways control airworthiness control system altitude control unit amount of controls angle-of-attack control angular position control antitorque control pedal approach control approach control point approach control radar approach control service approach control tower approach control unit area control area control center area flight control assisted control associated crop control operation associated fire control operation assume the control assumption of control message attitude control system (в полете) attitude flight control automatic boost control automatic control automatic exhaust temperature control automatic flight control automatic flight control equipment automatic flight control system automatic gain control automatic level control automatic path control automatic volume control autopilot control autostart control unit backswept boundary layer controlled wing balance the control surface bank control blanketing of controls bleed valve control mechanism bleed valve control unit boundary layer control brake control pedal Budget Control Section (ИКАО) bypass control cabin temperature control system cable control cable control system cargo hatch control switch change-over to manual control check control clearance control collective pitch control collective pitch control lever collective pitch control rod collective pitch control system (несущего винта) constant altitude control control actuator control board control booster control cable control cable fairlead control cable pressure seal control center control characteristic control circuit control column control column elbow control column gaiter control communication control console control desk control force control gear control in transition control lag controlled aerodrome controlled airspace controlled flight controlled route controlled spin control lever controlling beam controlling fuel control linkage control lock control loss control message control mode control of an investigation control panel control pedestal control position indicator control radar control radio station control rod control rod pressure seal control signal control slot (пограничным слоем) control speed Минимально допустимая скорость при сохранении управляемости. controls response control stick (воздушным судном) control stick movement control surface control surface angle control surface chord control surface deflection control surface effectiveness control surface load control surface pilot control surface reversal control system control system load control the aircraft control the pitch control transfer line control unit control valve control wheel control wheel force control wheel grip control wheel horn control wheel rim control zone crop control flight crop control operation customs control cyclic pitch control cyclic pitch control rod cyclic pitch control stick (несущего винта) cyclic pitch control system (несущего винта) data flow control deceleration control unit deflect the control surface (напр. элерон) differential aileron control differential control digital engine control direct control directional control directional control capability directional control loss directional control pedal direct lift control system director control distance control Document Control Unit drift angle control dual control easy-to-operate control electric propeller pitch control electronic engine control system elevator control elevator control stand emergency control engine control system engine throttle control lever environmental control system equipment environment control environment control system (воздушного судна) environment control system noise fail to maintain control fail to relinquish control feedback control system fire control operation flight compartment controls flight control flight control boost system flight control fundamentals flight control gust-lock system (при стоянке воздушного судна) flight control load flight control system flight director system control panel flow control flow control center flow control procedure foot controls fore-aft control rod fuel control panel fuel control unit fuel injection control full-span control surface (напр. крыла) get out of control go out of control ground control ground controlled approach ground control system (полетом) hand control handle the flight controls heading control loop health control helicopter control system hydraulic control hydraulic control boost system hydraulic propeller pitch control immigration control independent control inertial control system integrated control system integrated system of airspace control interphone control box irreversible control jacking control unit jet deviation control system laminar flow control landing control land use control lateral control lateral control rod lateral control spoiler lateral control system (воздушным судном) layout of controls level control longitudinal control longitudinal control rod longitudinal control system (воздушным судном) loss of control loss the control low control area maintain control manipulate the flight controls manual control master control mid air collision control mixture control mixture control assembly mixture control knob mixture control lever noise control noise control technique nonreversible control nozzle control system oceanic area control center oceanic control area oil control ring operating controls operational control overspeed limiting control passport control pedal control pilot on the controls pitch control pitch control lever pitch control system pitch trim control knob positive control zone power augmentation control power-boost control power-boost control system powered control power-operated control power-operated control system pressure control system pressure control unit propeller control unit propeller pitch control propeller pitch control system pull the control column back pull the control stick back push-button control push-pull control system (при помощи тяг) push the control column push the control stick quality control expert radar approach control radar control radar control area radar transfer of control radio control board radio remote control regional control center release of control relinquish control remote control remote control equipment remote control system respond to controls reverser lock control valve reversible control reversible control system rigid control roll control roll control force sensor roll control knob rudder control rudder control system rudder trim tab control system runway controlled runway control van safety control measures speed control area speed control system (полета) spring tab control rod stabilizer control jack stack controlled starting fuel control unit steering-damping control valve stiff control surface movement control surge control tab control system tab control wheel tail rotor control pedal take over the control temperature control temperature control amplifier temporary loss of control terminal control area terminal radar control terminate the control termination of control throttle control throttle control knob throttle control twist grip tie bus control track controlled traffic control traffic control instructions traffic control personnel traffic control regulations transfer of control transfer the control trim tab control turn control knob unassisted control unassisted control system upper area control center upper control area upper level control area warning system control unit weight and balance controlled wind flaps control system windshield heat control unit wing flap control system yaw control

acknowledgement of receipt actual time of arrival aerodrome of call aerodrome of departure aerodrome of intended landing aerodrome of origin aircraft center - of - gravity airport of departure airport of destination airport of entry allocation of duties allocation of frequencies allotment of frequencies alternative means of communication amount of controls amount of feedback amount of precipitation angle of allowance angle of approach angle of approach light angle of ascent angle of attack angle of climb angle of coverage angle of crab angle of descent angle of deviation angle of dip angle of dive angle of downwash angle of elevation angle of exit angle of glide angle of incidence angle of indraft angle of lag angle of landing angle of pitch angle of roll angle - of - sideslip transmitter angle of sight angle of slope angle of stall angle of turn angle of upwash angle of visibility angle of yaw antimeridian of Greenwich apparent drift of the gyro application of tariffs approach rate of descent arc of a path arc of equal bearings area of coverage area of coverage of the forecasts area of occurence area of responsibility arrest the development of the stall assessment of costs assignment of duties Association of European Airlines Association of South Pacific Airlines assumption of control message at a speed of at the end of at the end of segment (полета) at the end of stroke (поршня) at the start of cycle at the start of segment (полета) aviation-to-aviation type of interference avoidance of collisions avoidance of hazardous conditions axial of bank axis of precession axis of roll axis of rotation axis of yaw backward movement of the stick be out of trim best rate of climb bias out of view bill of entry bill of lading blanketing of controls body of compass card boundary of the area Bureau of Administration and Services camber of a profile care of passengers carriage of passengers carry out a circuit of the aerodrome cause of aircraft trouble center of air pressure center of depression center of force center of gravity center of mass center of pressure Central Agency of Air Service certificate of revaccination certificate of safety for flight certificate of vaccination choice of field class of lift clearance of goods clearance of obstacles clearance of the aircraft coefficient of heat transfer come clear of the ground complex type of aircraft composition of a crew concept of separation conditions of carriage cone of rays congestion of information continuity of guidance contour of perceived noise control of an investigation correlation of levels country of arrival country of origin course of training coverage of the chart curve of equal bearings danger of collisions degree of accuracy degree of freedom degree of skill degree of stability denial of carriage Department of Transportation derivation of operating data determination of cause determine amount of the error determine the extent of damage determine the sign of deviation development of the stall direction of approach direction of rotation direction of turn duration of noise effect elevation of the strip elevation setting of light units eliminate the cause of eliminate the source of danger (для воздушного движения) end of runway enforce rules of the air en-route change of level erection of the gyro estimated position of aircraft estimated time of arrival estimated time of departure estimated time of flight even use of fuel extension of ticket validity extent of damage facilitate rapid clearance of factor of safety filing of statistical data first freedom of the air first type of occurence flow of air traffic fly under the supervision of for reasons of safety freedom of action freedom of the air frequency of operations gathering of information general conditions of carriage General Conference of Weights and Measure General Department of International Air Services of Aeroflot get out of control given conditions of flight go out of control go out of the spin grade of service grade of the pilot licence grading of runway height at start of retraction hover at the height of identification of signals inconventional type of aircraft increase a camber of the profile indication of a request in interests of safety initial rate of climb initial stage of go-around inlet angle of attack intake angle of attack integrated system of airspace control interception of civil aircraft International Co-ordinating Council of Aerospace Industries Association International Council of Aircraft Owner and Pilot Associations International Federation of Air Line Pilots' Associations International Federation of Air Traffic Controllers' Associations International Relations Department of the Ministry of Civil Aviation interpretation of the signal interpretation of weather chart intersection of air routes in the case of delay in the event of a mishap in the event of malfunction introduction of the corrections keep clear of rotor blades keep clear of the aircraft keep out of the way layout of aerodrome markings layout of controls lessee of an aircraft level of airworthiness level of safety level of speech interference limiting range of mass line of flight line of position line of sight location of distress loss of control loss of pressurization loss of strength magnetic orientation of runway margin of error margin of lift margin of safety margin of stability marking of pavements mean scale of the chart means of communication means of identification meridian of Greenwich method of steepest descent mode of flight moment of inertia moment of momentum name-code of the route onset of wind operation of aircraft out of ground effect out of service overshoot capture of the glide slope period of rating currency personal property of passengers pilot's field of view plane of rotation plane of symmetry of the aeroplane point of arrival point of call point of departure point of destination point of discontinuity point of intersection point of loading point of no return point of origin point of turn-around point of unloading portion of a flight portion of a runway prevention of collisions primary element of structure prohibition of landing prolongation of the rating promotion of safety proof of compliance propagation of sound protection of evidence pull out of the spin pull the aircraft out of radar transfer of control radius of curvature range of coverage range of motion range of revolutions range of visibility range of vision rate of climb rate of closure rate of descent rate of disagreement rate of duty rate of exchange rate of flaps motion rate of growth rate of pitch rate of roll rate of sideslip rate of trim rate of turn rate of yaw reception of telephony record of amendments record of revisions regularity of operations relay of messages release of control removal of aircraft removal of limitations replacement of parts representative of a carrier reservation of a seat retirement of aircraft right - of - entry roll out of the turn rules of the air safe handling of an aircraft second freedom of the air second type of occurence selection of engine mode sequence of fuel usage (по группам баков) sequence of operation showers of rain and snow simultaneous use of runways site of occurrence slope of level (шумов) source of danger Standing Committee of Performance start of leveloff start of takeoff state of aircraft manufacture state of discharge (аккумулятора) state of emergency state of occurence state of transit steadiness of approach steady rate of climb structure of fronts submission of a flight plan system of monitoring visual aids (на аэродроме) system of units (измерения) table of cruising levels table of intensity settings table of limits table of tolerance take out of service target level of safety temporary loss of control termination of control theory of flight time of lag time of origin titl of the gyro top of climb transfer of control transmission of telephony transmit on frequency of triangle of velocities under any kind of engine failure uneven use of fuel unit of measurement velocity of sound wall of overpressure warn of danger within the frame of working language of ICAO zone of intersection zone of silence