| 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 |
| 14. What zonal area of the merlin aircraft is known as the lower fuse? | - Zone 200 |
| 15. What is the number of the topic used to carry out flight servicing operations? | - Topic 5B1 |
| 16. With reference to the sonics system what is the purpose of the SIFF crash switch? | Erase mode 4 data when the aircraft crashes |
| 17. What directional coverage do the I-Band system antenna provide? | 360 degrees |
| 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 |
| 22. How many intercom networks are available via central audio selection station? | 4 |
| 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 |
| 28. Are the AC generators phase matched? | no |
| 29. List the 4 of the 5 LRU of the ADS system that contain high voltages? | - STR
- Power relays
- Submersible unit
- Hydraulic oil cooler |
| 30. What is the minimum safe distance for personnel from the radome during a ground test of the radar? | - 78m |
| 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 |
| 33. How many common missile warning systems Electro-optical missile sensors are fitted to the merlin? | 5 |
| 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 |
