TD42 Flashcards
What is the difference between EARLY and OVER options on the flight plan screen?
When EARLY is selected, the helicopter will be guided to start the turn prior to the waypoint.
When OVER (overfly) is active, the aircraft will overfly the waypoint and will fly a teardrop pattern to intercept the outbound leg.
What information is provided in each FMS header default? How do you change the header?
COM Header: (TM 3.4.2.5.1)
System time: Indicates system time.
PLT: Indicates pilot’s side of display. In inverse video when the ICS selected radio is keyed.
Preset ID: Shows selected preset. Blank if manual t u n e , o r ICS mode, EMERG when emergency selected. Selected radio Type of radio selected with the transmit control.
Frequency: Frequency or channel display. Area is blank when in ICS selection mode.
Call sign: Name of call sign chosen for frequency shown.
Nav mode: Indicates navigation mode of the FMS
BRG The bearing to the present waypoint. 0 is displayed when there is no active steering.
RNG Distance in nautical miles to the present way-point. Displays are 0 to 9999.9 or **.* if beyond range. There is no display when there is no active steering.
NXT The initial desired course of the next leg of the flight plan with the present way-point as the FROM point. Blank when there is no next leg or no active steering.
WND Computed wind direction and speed in knots. An asterisk is displayed when windspeed > 99 knots. Wind direction may fluctuate when the windspeed is near < 4 knots. Remembered wind will be displayed in inverse video. Wind information is not displayed on the ground. Time System time.
TTG Time to go to the present waypoint at current ground speed. Blank is displayed when there is no active steering.
GS Ground Speed in knots.
WPT The identifier of the present TO way-point. Displays WPT for regular way-point. Labels will flash between normal and inverse video when a way-point is captured (minimum 3 seconds). WPT number Displays WPT reference number for the current 9TO9 way-point. Blank is displayed when there is no active steering. WPT name Displays first five characters of the eight character way-point name for the current 9TO9 way-point. Blank is displayed when there is no active
Nav mode Indicates navigation mode of the FMS.
IG1 Indicates blended solution with GPS aiding. I-1 Indicates blended solution without GPS aiding.
GP1 Indicates GPS solution.
IN1 Indicates pure inertial solution.
What three Emergency Procedures in Chapter 9 of TM 1-1520-280-10 require the Engine to be placed in LOCKOUT? Define LOCKOUT?
Decreasing NR, NP Decreasing/Increasing (Oscillation), Torque Split between Engines
The term LOCKOUT is defined as manual control of engine RPM while bypassing DEC/EDECU functions.
The digital mapping system displays maps on the ___The digital map accepts ___ ____ map data loaded into the system through the ________.
Mfds, mission relevant, DTS
Referencing the Tactical Flight Mission Planning and Map Preparation Guide (TFMP), selecting appropriate altitude(s) and terrain flight modes as appropriate: The _____ terrain flight altitude for the specific condition should always be used. Flight at ___ terrain flight altitudes reduces the _____, enables ____ airspeeds, reduces ____ to terrain flight, and minimizes __.
Highest, higher, difficulty of navigation, higher,hazards , fatigue
How does the TFMP define Air Control Point, where are they designated and what may allow them to be placed farther apart?
Air Control Point (ACP) - - An easily identifiable point on the terrain or an electronic NAVAID used to provide necessary control during air movement. ACPs are generally designated at each point where the flight route or air corridor makes a definite change in any direction and at any other point deemed necessary for timing or control of the operation. ACPs should be progressively closer as an aircraft nears the objective, facilitating timing and navigation. Type of terrain, illumination, total route distance, and accuracy of onboard navigation systems may allow selection of ACPs much further apart.
What are the two basic maps used in tactical flight mission planning, and what are the advantages/disadvantages of each?
The Joint Operations Graphic has a scale of 1:250,000. The scale of the map permits a relatively small map uncluttered with extraneous information. It shows coordinates in Latitude and Longitude, as well as Military Grid Reference System (MGRS). It is useful for performing long enroute legs performed at Low Level. However, because it lacks adequate terrain detail, it should not be used for Contour or Nap of the Earth (NOE) planning and navigation.
The tactical map has a scale of 1:50,000 and is a highly detailed map. This is the primary map used for the objective phase of the operation. It should be used anytime Contour or NOE flight is conducted, or anytime precise navigation is required (i.e. at a PZ or LZ).
What does the TFMP state you should consider when planning and plotting routes regarding:
Route Planning - - The route for the mission must be tactically sound, yet not so difficult as to preclude successful navigation. The first step is to determine the threat situation. The following are considerations for planning and plotting the route: a. The easiest, quickest and least hazardous mode of flight is Low Level. It should be used whenever the threat situation allows. b. Contour and NOE are progressively slower, more difficult and more hazardous, and should only be used when the threat situation dictates. c. As a rule of thumb, use NOE when flying within the effective range of the threat weapon systems. d. Use Contour when flying within 10 -15 Kilometers of the maximum effective range of the threat weapons systems. e. Plan alternate ingress and egress flight routes. f. Locate the SP 3 to 8 kilometers from the PZ’s. The flight route starts here. g. Locate the RP 3 to 8 kilometers from the LZ’s, primary and alternate. The flight route ends here. h. Use prominent, distinct terrain features located along the flight route that facilitates navigation, control of speed, and control of en route fires as ACPs. i. Plan that no turn in the route exceeds 60 degrees, especially if slingloads are involved. j. Plan that routes are at least two kilometers wide. k. Ensure the course to the RP is within 30 degrees of the final course and the final course is within 30 degrees of the LZ landing heading.
