Fichas
7. MLS
Fichas del conjunto (43)
- 1what is an MLS based onTRSB
- 2TRSBtime reference scanning beam
- 3how is the position of the AC calculatedby measuring the time between two successive passes of a scanning beam
- 4for the AC position to be calculated what do you need to ensure you know about the beamits angular speed and coverage area
- 5name the antenna involved in an MLS-approach azimuth
-back azimuth
-approach elevation
-precision DME (P-DME) - 6MLSmicrowave landing system
- 7what is the frequency band associated with the MLS5031 - 5091 MHz (SHF)
- 8what can be said about the azimuth and elevation transmitters in regard to the frequencythey both will transmit on the same frequency, but will never transmit at the same time
- 9have many useable MLS channels are there200
- 10How are the MLS channels numbered500 to 699
- 11what is the MLS horizontal coverageat least 40˚ each side of the centreline up to 20nm
- 12what is the MLS vertical coverage15˚ up to 20000 ft AGL
- 13what is the MLS back beam horizontal coverage40˚ each side of centreline up to 10nm
- 14what is the MLS back beam vertical coverage15˚ up to 10000ft AGL
- 15what are the different approach possibilitiesmultipule approach path
multipule RWY
curved or segmented approaches
multipule glide path - 16what are the advantages of the MLS over the ILSsimpler, cheaper to install/maintain
not critical in terms of terrain
immune to ground vehicle interference
no false glidepaths - 17what happens if the P-DME failsMLS can provide only ILS straight-in approach
- 18what is the rate of repetition of the IDENTat least six times per second
- 19what information is sent to the AC via data transmissionall the data required by the AC system to calculate its position
- 20what sort of data does this includeantenna location
elevation
status - 21what is the ration between the transmission of the elevation and the azimuth transmissionthe elevation is transmitted 3 times more than the azimuth
- 22what is an advantage in terms of ground equipment of the MLSno need to change configuration on the ground equipment to facilitate different landings
- 23what would the HSI show on a curved MLS approachdeviation from the set path, if the curved approach was being followed then the HSI needle would be centred
- 24what is a P-DMEa very precise DME
- 25what can you say about the transmission of the azimuth and elevationthey use the same frequency, but different antennas
- 26how does the MLS give continuous range informationMLS incorporates co-located and frequency paired DME
- 27what is the main advantagemultipule approach paths
- 28what is the main difference between the ILS and MLSthe MLS can make curved approach paths
- 29when is the MLS particularly usefulwhen making curved approach paths in mountainous areas or when trying to avoid protected area in regard noise/air pollution
- 30how many approved paths are there typicallly10-12
- 31what can the selection of the glidepath be from tofrom 0.1˚ to 15˚
- 32what does the range of glidepaths meanthat the AC can choose the most appropriate approach in relation to aircraft performance
- 33what may approach on a 15˚ glidepatha helicopter
- 34how is the MLS able to alter the glidepathby the scanning beam, makes it completely customisable within the approved approach paths
- 35what is the lateral accuracy+/- 15 m (50 ft)
- 36what is the vertical accuracy+/- 3.7˚
- 37what can be said about the P-DME in relation to the azimuth and elevation indicationsit is automatic but not paired
- 38how many letters can the ident be3 or 4
- 39if the ident is 3 letters long, what can be said about the letters usedcan be any 3 letters
- 40if the ident is 4 letters long, what can be said about the letters usedthe first letter must begin with an M
- 41what can you say about the use of the identit is used by approach azimuth and back azimuth ground equiptment
- 42what can you say about the sequence of transmissionit is always the same
75 milli seconds - 43in one sequence what will you receivex3 elevation
x1 azimuth
Información
- Descripción
- RNAV Fichas sobre 7. MLS, creado por Ella Davies el 15/05/2018.
- Creado por
- Ella Davies
- Visitas
- 3
- Valoración