Limitations Flashcards
What is the preferred oil level?
2 and 3 units down from full
What are the Va weights and respective speeds?
4110kg - 143 KIAS
3208kg - 137 KIAS
2835kg - 125 KIAS
2268kg - 112 KIAS
Reduction of VFE speeds on C208B and EX
25 knots on C208B and as placarded on EX
Load factor limits at MTOW
+3.36 g
-1.34 g
Flap down
+2.0 g
C208B and EX max ITT ( normal and Hardy’s) for
- Start
- Take-off
- Climb
- Cruise
- Transient
- Idle
- 1090°
- 805°, 850° EX
- 765°/760°, 825° EX/800° EX
- 740°/740°, 805° EX/780° EX
- 850° (2 secs.), 905° (20 secs.)
- 685°, 700°
C208B and EX torque limitations
- Maximum rated
- Transient
- 1865/2397 ft-lbs
2. 2400/2600 ft-lbs (20 secs.)
Prop RPM limitations C208B and EX
- Maximum transient
- Maximum reverse
- 2090 RPM (emerg. condition, to complete flight and at all engine ratings)
- 1825 RPM
Ng limitations C208B and EX
- Take-off, climb, cruise, reverse
- Idle
- Transient
- 101.6%/103.7%
- 52% minimum, 55% minimum
- 102.6% (2 secs.), 105.4% (20 secs.)
C208B oil pres. limitations
- Take-off, climb, cruise, reverse
- Idle
- 85-105 psi
2. 40 psi minimum
C208B EX oil pres. limitations
- Take-off, climb, cruise, reverse
- Idle
- Starting
- 85-105 psi
- 40 psi min
- 200 psi max
C208B oil temp limitations
- Take-off
- Climb, cruise, reverse
- Idle
- Transient
- Starting
- 10-99°
- 0-99°
- -40-99°
- 99-104° (10 mins)
- -40° minimum
C208 EX oil temp limitations
- Take-off, climb, cruise, reverse
- Idle
- Starting
- Transient
- 32-99°
- -40-99°
- -40° minimum
- 104° (10 minutes)
Normal oil pressure and temp above 72% Ng
85-105psi
60-70°
Oil pres below 85/80 tolerate for completion of flight at reduced power if possible. 40 psi or less is unsafe , engine shut down or landing using minimum power to maintain flight
Starter cycle limitations C208B and EX
BATTERY
30 secs on 60 secs off
30 secs on 60 secs off
30 secs on 30 mins off
EXT POWER
20 secs on 120 secs off
20 secs on 120 secs off
20 secs on 60 mins off
Maximum oil consumption rate
0.1 qt per hour
Fuel useable capacity
332 US GALLONS / 1256 L approx 2228 lbs
With low fuel reserves max balance ball deflection?
1/4 deflection
Max side lisp duration and maximum inflight fuel imbalance
3 minutes and 200 lbs
Company aircraft altitude limitation
20,000 feet
Use of AVGAS in 208B
- Emerg. Use only
- 150 hours maximum
- 29 degrees maximum take off temp
- 9000 max alt.
- Fuel boost pump on all operations