AV Revision
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47 questions
| 🇬🇧 | 🇬🇧 |
| 1. What is the purpose of the flying control actuator (FCPA)? | To ensure the main Rotor head and flying controls are set to the correct flying position prior to a folding operation |
| 2. Which component of the sonar locator beacon provides the operating power required for it to transmit for a minimum of 10 days? | Lithium battery |
| 3. Data can be uploaded and downloaded to the aircraft management system (AMS) on the merlin aircraft, what portable device is used to store the data? | Aircraft data transfer module (ADTM) |
| 4. What are the purpose of the merlin folding/spreading system? | - To allow the folding or spreading of the main rotor blades and/or tail pylon - To reduce the aircraft overall dimensions for storage |
| 5. What are the purpose and function of the ISIS? | - To be used as a reference for comparing flight data during normal flight conditions - To supply important flight data in the event of an CDS or AMS failure |
| 6. What is the purpose of the emergency Avionics system? | To provide important A/C data for the accident investigation in the event of an accident |
| 7. What are the two main functions of the keyable down facing indent light? | - To illuminate a ground or sea area bellow the aircraft - To transmit Morse code |
| 8. What is the purpose of the central warning system (CWS)? | - To alert the pilot by visual and audible means - That a failure has been detected by the relevant sensor |
| 9. List the three main components of the EAS that are housed inside the beacon and aerofoil | Unit (BAU) - Emergency locator transmitter - The non rechargeable lithium battery pack - Cockpit voice recorder/ flight data recorder memory module |
| 10. What is the major components of the merlins SMS? | - SMS and armament circuit breakers - Master armament safety switch panel - Cabin heavy stores control - Weapons processor unit - Heavy stores interface units - Sonorbouys dispensers interface |
| 11. What is the EAS tri-axial accelerometer located? | On the underside of the cabin roof |
| 12. What must you ensure before any folding/spreading operations are carried out with respect to the area? | - The area around the aircraft is clear and free from obstruction - There is no risk of the blades or tail striking any part of the aircraft or personnel |
| 13. Name the 4 components in the blank boxes bellow | - Flight control computer 1 - Flight control computer 2 - Vertical gyro - Dynamic sensor unit |
| 16. With reference to the sonics system what is the purpose of the SIFF crash switch? | Erase mode 4 data when the aircraft crashes |
| 18. Where is the sonics/sonorboys homer switch located? | Mission console ancillary panel |
| 19. What is the purpose of the sonics UHF command transmit unit? | It controls the operation of CAMBS using discrete commands passed to it over an interface from the CAP |
| 20. Where on the aircraft is the rotor ice protection unit located? | Under the forward fixed fairing |
| 21. What is the purpose of the programme loading unit within the ESM system? | To hold classified data for the ESM system |
| 23. With respect to the merlin radar system, list the 4 modes of operation available? | - Surveillance mode - SAR mode - ISAR mode - Weather mode |
| 24. What are the major components of the GNSS? | - FRPA - GNSSU |
| 25. Identify the sonics system homing antennas shown bellow | - Sonorbouy homing antenna aft - Sonorbouy homing antenna fore - Sonorbouy homing antenna right - Sonorbouy homing antenna left |
| 26. Where is the I-band control unit installed? | On the inter seat console |
| 27. Label the parts of the ADS system? | - Winch - WIU - Oil cooler - STR |
| 29. List the 4 of the 5 LRU of the ADS system that contain high voltages? | - STR - Power relays - Submersible unit - Hydraulic oil cooler |
| 31. Where is the master control unit located? | Bay 1, on the right hand side of the aircraft |
| 32. Where is the dispensing system ground safety switches located? | Located at the rear edge of the port and starboard sponson’s |
| 34. State the purpose of the infra-red counter measure system | The IRCM provides jamming of the infrared heat seeking missiles |
| 35. Where is the EO/IR GPS receiver located? | The EO/IR reciver is located on the right avionic upper shelf |
| 36. Name the two principle components of the traffic advisory system? | - Traffic processor - Traffic display |
| 37. State the purpose of the countermeasures dispensing system | The CDMS provides an expendable countermeasure dispensing capability Flare cartridges are dispensed as counter measures against radar or infrared homing threats |
| 38. State the properties of the infer-red countermeasures electro-magnetic interface | - It prevents the transfer pf electromagnetic interference from the system to the aircraft systems - And reduces the vulnerability of the system to EMI from external source |
| 39. Where are the countermeasures dispensing system manual dispense buttons located? | - Manual dispense buttons provided for the pilot and co-pilot on the cyclic grips - Guarded manual dispense button on the hoist operator station - A guarded manual dispense button above the cabin window at the rear of the mission console |
| 40. Identify the FMV components | - Multi-band datalink - Interface plate - Heat sink assembly |
| 41. Name 6 of the 8 components on merlin radar system | - Transmitter - Receiver - Processor - Waveguide switch - Waveguide assembly - Dummy load - EMC load - Scanner |
| 42. What ensures that the ICU and IDU 5 receive a constant voltage? | - Dc to Dc converter |
| 43. What device is used to upload digital map data to the tactical management system? | - Removable map module |
| 44. What is the purpose of the no.1 TRU | Converts 115v 3 phase AC from NO1 main busbar to 28v dc |
| 45. Which comms system: | A. v/UHF/HF intercom B. Emergency coms Net 4 C. HF UHF |
| 46. What hazard is associated with the rad alt during maintenance? | It will transmit whenever power is applied to the A/C |
| 47. Which system/component is ADS data recorded on? | - MRS - T-DTM |