GK Flashcards
Battery Volts/Amps
24 Volt, 42 Amp-hr
Starter/Generator volts/amps
28 volt 300 amp
Aux Bat volts/amps
24 volt, 5 amp hr
What does the aux bat power?
Stby ADI, Airspeed indicator lighting, altitude lighting, turn an slip indcator and compass lighting. Fire warning system 1
Tire Pressures
Nose gear: 120 +/-5 psi
Main gear: 185 +/-5 psi (limited to 600 fpm or 3.7 Gs)
Main gear: 225 +/-5 psi (limited to 700 fpm)
Battery Start required voltages w/o external power
23.5 volts (24 local) below requires external power
No external power below 22Volts
Max IOAT for start
80 degrees C
Maneuvering airspeed Vmo
227 KIAS
Max zero g load time
5 seconds
Max inverted flight time
15 seconds
Icing procedures and limitations
light rime, 5000 ft band only. Maintain 30 degrees bank or less and 0-2 Gs. Increase landing speed by 10 KIAS
Propellor stats: (length)
97” diameter hartzell 4 blade constant speed variable pitch non reversing
Turbulence/thunderstorm penetration procedures
Recommended airspeed: 180 KIAS
Do not exceed: 195 KIAS
When do you need to re-compute weight and balance?
Solo passenger over 260 lbs. Rear passenger over 260 lbs. Combined passengers and gear over 500 lbs. Fuel over 1100 lbs. Baggage compartment over 10 lbs.
AOA indcations
18 units - stall
Max Range: 4.9 units (triangle)
Max endurance: 8.8 units (diamond)
Generator power limitations
In flight: -2 to 50 amps.
Ground/inflight: 28.0-28.5 volts
Below 25 volts, battery will not charge and expect the battery to deplete
Best Glide (clean and dirty)
Clean: 125 KIAS (1350 FPM sink rate) Glide ratio of 2.0
Dirty: 105 Kias (1500 FPM sink rate) Glide Ratio of 1.6
If windmilling, your glide ratio is only 1.0
Stick shaker comes on
5-10 knots above stall
Power-on stall entry parameters
Power at Entry: 30-60% Torque
• Pitch at Entry: 15-40 degrees nose high
• Bank: 0 degrees for straight ahead, 20-30 degrees for turning stall
• Approximate altitude loss: 1,500-2,000 feet for full series starting at 160 KIAS
Power on stall recovery is complete when:
Recovery is complete when the aircraft is wings level, climbing, and not decelerating
ELP Stalls Entry Parameters
Entry Parameters:
• Power at Entry: 4-6% Torque
• Pitch at Entry: As required to maintain 125 (clean) or 120 (configured) KIAS glide
• Bank: 0 degrees for straight ahead, 30 degrees for turning
C4 Phasetest GK
ELP stalls altitude loss per stall
Glide to high key: 300 ft
High key to low key: 800 ft
Low key to touchdown: 900 ft
Total altitude losss: 2000 Feet, however the 248 also says that a whole series will take up to 4,000 Feet
TP stalls entry parameters
Entry Parameters:
• Power at Entry: 10-15% Torque, idle to induce stall
• Configuration: gear down, flaps any position
• Bank: 30 degrees for turning, 0 degrees for straight ahead
Dual only maneuvers
Stalls Stability Demonstrations Nose-High Recoveries Nose-Low Recoveries Inverted Recoveries Uncontrolled Airfield Operations OCF Recoveries ELPs or any other simulated engine-out maneuvers Flaps up patterns or landings Straight-in approaches Slow-flight maneuvers Rolling takeoffs Low-closed patterns Low level navigation
Zoom capabilities at 200 KIAS
600 - 900 feet gained
Zoom capabilities at 250 KIAS
1170-1550 feet gained
How do you zoom?
Initiate a 2G pullup to 20 degrees nose high and then execute a 0 to .5 G bunt to intercept desired airspeed
How do you know if you are in an incipient spin?
Oscillation, fully deflected turn needle, stalled AOA, Airspeed accelerating or decelerating towards steady state airspeeds
• Lasts approx. 2 turns
How do you know if you are in a steady state spin?
Steady state spin
o Altitude loss is 4500 ft for 6-turn spin (750 ft/turn)
How does the PMU protect the engine during a spin?
At above 10,000 feet PA, the PMU maintains idle above 80% to protect the engine
Airstart speed windows:
SL to 15,000 feet: 125 knots to 200 KIAS
15,001 to 20,000 ft: 135 knots to 200 KIAS
How long will the starter take to drain the battery if left in manual?
10 min
After loss of all electrical power, how long will the standby attitude indicator continue to work?
9 min (accuracy to within 6 degrees of bank)
What altitude is a restricted low approach flown to?
500 ft AGL
Low approaches simply mean do not touch down
What speeds do you add the gust factor to?
Increase final approach speed by 1/2 the gust factor up to 10 knots. Gusty winds do not affect final turn airspeeds
How long are preflight inspections good for?
72 hours. If flow - end of the day.
How long are tire pressure checks good for?
6 hours. If flown, good till the end of the day