IN105 Flashcards
(36 cards)
What are the three categories of instruments?
a. Control instruments
b. Performance instruments
c. Navigation instruments
The control instruments are the _____ and _____.
a. EADI
b. Primary Engine Data Display
What are the performance instruments?
a. Altimeter
b. VSI
c. ASI
d. EHSI
e. AOA indicator
f. Turn and bank indicator
How do you maintain your airspeed at a given altitude?
a. Use control instruments to set parameters.
b. Cross-check performance instruments
Instrument cross-check is the technique used to maintain control and monitor the performance of the aircraft. Which instrument does the cross-check originate from?
The cross-check originates from the EADI. The cross-check pattern varies for different maneuvers.
What is the method that all cross-checks use as a base?
The hub-and-spoke method
What is the rule of thumb for choosing a bank angle?
a. For turns of less than 30º of heading change, your bank angle should equal your degrees of turn.
b. For turns of 30º or greater, use a bank angle of 30º.
Constant rate climbs and descents are performed by varying pitch and power to maintain a _____ and _____.
Specific airspeed and climb/descent rate
Power controls airspeed and pitch controls rate of climb or descent. If you are flying at 240 KTAS with a 3° nose down pitch, what will the VSI read?
1200 feet/minute
a. The change in VSI per degree of pitch change = TAS (NM/MIN) x 100
b. To solve this, multiply 240 KTAS/60 x 100 x 3° = 1200 feet/minute
What factors may contribute to an unusual attitude?
a. Turbulence
b. Loss of situational awareness
c. Inattention
d. Spatial disorientation
e. Lost wingman
f. Transition from VMC to IMC
g. Any combination of these factors
How will you recognize an unusual attitude?
An unusual attitude picture on the EADI or unusual indications on your performance instruments
What is a radial?
A radial is an imaginary line extending outward from a VOR or VORTAC. It is a magnetic bearing measured in degrees.
What is a course?
A course, in radio instruments, is the desired track to or from a navigation aid. Like radials, courses are also measured in degrees.
What is the difference between an outbound intercept and an inbound intercept?
a. An outbound course intercept will take you from a station. It is the same as a radial intercept.
b. An inbound intercept is intercepting a course that will take you to a station. For inbound intercepts, take the reciprocal of the radial.
What is the difference between homing and proceeding direct?
a. Homing is the simplest way to go from station to station by placing the bearing pointer to the top of the station. This is not an efficient method.
b. Proceeding direct is flying a wind- corrected heading to maintain a course.
What methods will assist you in determining a good outbound radial intercept heading?
a. The 45º intercept method
1) TDC + 45 (Tail to the Desired Course + 45, not to exceed the tail of the bearing pointer)
b. Double the angle method
1) Double the difference between the tail of the bearing pointer and the new course to determine an intercept angle.
What methods will assist you in determining a good inbound intercept heading?
a. Course to bearing pointer + 30 (Charlie Brown +30, not to exceed 90)
1) Turn to a heading 30º beyond the bearing pointer position (not to exceed 90º intercept angle)
b. Double the angle method
1) Double the difference between the head of the bearing pointer and the new course to determine an intercept angle
You are on the 165° radial at 20 NM and need to go to the 260° radial at 20 NM. What approximate heading will you use?
a. Set the desired radial in the course select window
b. Turn in the shorter direction to a heading between the head of the bearing pointer and the head of the course arrow.
c. Refine your initial heading
d. Your heading should be 300-310º (no wind)
You are on the 090° radial at 20 NM and need to go to the 350° radial at 100 NM. What approximate heading will you use?
a. Set the desired radial in the course select window
b. You are already heading in the general direction toward the desired fix
c. Refine your initial heading
d. Your heading should be 335°-345° (no wind)
You are on the 300° radial at 25 NM and need to go to the 210° radial at 75 NM. What approximate heading will you use?
a. Set the desired radial in the course select window
b. Turn in the shorter direction to a heading between the head of the bearing pointer and the head of the course arrow.
c. Refine your initial heading
d. Your heading should be 185°-195° (no wind)
You are on the 030° radial at 50 NM and need to go to the 270° radial at 30 NM. What approximate heading will you use?
a. Set the desired radial in the course select window
b. Turn in the shorter direction to a heading between the head of the bearing pointer and the head of the course arrow.
c. Refine your initial heading
d. Your heading should be 225°-235° (no wind)
How can ETA be estimated using the EHSI?
a. Estimate the distance between the two fixes using the distance from the center to the outer edge of the EHSI as a scale.
b. Divide the estimated distance by the groundspeed in miles per minute to determine the time needed to travel to the new fix and ETA.
How do you fly an arc intercept from a radial?
a. TIM the station
b. Determine the direction of turn
c. Determine your lead point in nautical miles.
d. At the lead point, turn to place the head of the bearing pointer on the 90° index and check your DME.
You are inbound to a VORTAC on the 060° course at 35 NM. Your groundspeed is 180 knots. What is the lead point for a left turn to intercept the 25 NM arc?
In this case you would use your nautical miles per minute (NM/Min) – 2 to determine the turn radius for the 90° turn. You would, therefore, need to start your turn 1 NM before reaching 25 NM, or at the 26 DME.
