IN101 - INST DISPLAYS/CROSSCHECK Flashcards
Define the control and performance concept
An a/c is controlled in flight by adjusting the attitude and power to produce the desired results
Three categories of instruments
Control, Performance, Navigation
What are the control instruments?
EADI and Primary Engine Data Display
Cross check should originate from EADI. Both instruments display immediate attitude and power indications.
What are the performance instruments?
Altimeter, Airspeed Indicator, VSI
They indicate a/c’s actual performance. Others include:
EHSI, AOA indicator, Turn and Bank indicator
Describe the control and performance procedure
- Est altitude and power settings on the control instruments
- Trim out control pressures
- Crosscheck performance instruments to determine if the a/c is providing desired results
- Adjust power as indicated on PEDD or attitude on the EADI, as necessary
Changing pitch attitude without a power adjustment affects:
ASI, Altimeter, VIS, AOA
The primary reference during a level turn is what?
EADI
What is the primary reference for power control?
PEDD
What should you cross-check anytime you add power?
ASI, VSI, Altimeter, EADI, Turn and Bank indicator
T/F: Performance instruments (VSI/Altimeter) lag behind control instruments
True
What method is used to cross-check?
Hub and spoke
Turn cross-check procedure
- Starts with EADI to set bank
- Move to EHSI to determine leadpoint and roll out HDG
- Scan other performance instruments: VSI, ASI, Alt
Descent/Climb cross-check procedure
- Set pitch attitude and power setting (EADI/PEDD)
- Cross-check VSI and Alt
- Cross-check/Adjust control instruments (EADI/PEDD)
Standby Instrument use
- Move cross-check to STBY instruments and remain with them
- Small changes are harder to detect
- Be aware of parallax error due to seat position
- Increase scan speed
Attitude instrument tolerance
Indicators erect and AOB vertically aligned with 0 bank
Altimeter tolerance
Set to local barometric setting and within 75 feet of field elevation
Heading tolerance
EHSI and magnetic compass should be within 5 degree of a known heading (ie RWY heading)
Refer to airport diagram approach plates that show real magnetic heading of RWY
Nav Equipment tolerance
Bearing pointers point to station; CDI error no greater than +/- 4 deg; distance within 1/2 mile or 3% of the distance to the facility, whichever is greater; check ‘to’ and ‘from’ station to check TO/FROM indicator
1/2/3/4 memory aid
What is the trim order?
REA
If the power setting is constant and airspeed is increased/decreased, how would you need to trim?
A/s increases: left rudder, down elevator
A/s decreases: right rudder, up elevator
If airspeed is constant and power setting is increased/decreased, how would you need to trim?
Pwr increases: right rudder, down elevator
Pwr decreases: left rudder, up elevator
Climb P&P+
140-180 KIAS
10-15 deg UP
MAX pwr
Clean
1,000 fpm climb 15,000’ P&P+
150 KIAS
4 deg UP
55% pwr
Clean
Level flight, 15,000’ P&P+
150 KIAS
2 deg UP
35% pwr
Clean
1,000 fpm descent, 15,000’ P&P+
150 KIAS
2 deg DWN
15% pwr
Clean
Holding P&P+
150 KIAS
2 deg UP
35% pwr
Clean
Penetration P&P+
200 KIAS
10 deg DWN, 10% pwr
5 deg DWN, 20% pwr
Clean
Final Approach Level Flight P&P+
110 KIAS
3 deg UP
35% pwr
T/O
Precision Final Approach/600 fpm Descent P&P+
110 KIAS
0 deg
21% pwr
T/O
Non-precision Final Approach/1,000 fpm Descent P&P+
110 KIAS
1 deg DWN
16% pwr
T/O
Missed Approach P&P+
160-180 KIAS
10-15 deg UP
MAX pwr
Clean
Downwind Leg P&P+
200 KIAS
LOL
55% pwr
Clean
