seminole basics Flashcards
Vne
202
Vno
169
Va
3800lbs 135
2700lbs 112
Vfe
111
Vle
140
Vlo
109
Vr
75
Vref
75
Vy
88
Vx
82
What are the speed for Vy and Vx when we have only one engine?
Exactly the same as with two engines
Vcrz
105
Vs1
57
Vs0
55
Vmca
56
What is MTOW
3800lbs (1727kg)
What is IFR MTOW
3500lbs (1591kg)
What is Max ramp weight
3816lbs (1735kg)
What is the max baggage
200lbs (90kg)
What is the total useable fuel
408ltrs
What is the total fuel
416ltrs
what is the oil range
2-6, but oxford min is 4
what is the heater fuel consumption/hr
2 litres
What is the tyre pressure for the nose
50psi
What is the tyre pressure for the main wheels
55psi
What is the max rpm
2700rpm
What is the max MAP
full throttle
What is the CHT range
200-500 F
what is the oil temperature range
75-245 F
fuel pressure range, and green arc?
0.5-8 range, green arc=5-8
fuel grade
100 or 100LL
Prop type
Hartzell
Prop diameter
72”-74”
Oil pressure green arc
60-90
Max positive/negative loading
3.8 G flaps up, 2.0 G flaps down
can you fly inverted?
Inverted manoeuvres not approved
Max XW
17kts
Describe the electrical system
2X60amp alternators that regulate the system at 14 volts. alternator circuit breaker pops at 17 volts. Batter is 12 volt with 35amp/hr consumption.
How do we start with external power
Master OFF All electrical equipment OFF Terminals CONNECTED External power plug INSERT IN FUSELAGE start normally turn off right engine disconnect external power restart right engine operate at low rpm
Checklist for engine fire on ground
If engine has not started
- mixtures ICO
- Throttles FULL OPEN
- starter CONTINUE CRANKING
if engine has started
- keep engine running to draw fire into engine
- fuel selectors OFF
- mixtures ICO
- Extinguish fire
Checklist for fire in air
For affected engine
- fuel selector OFF
- Throttle CLOSED
- propellor FEATHER
- mixture ICO
- cowl flap OPEN
- Land immediately
Cabin fire checklist
Non essential electrics OFF
cabin heat/fan OFF
Extinguish
Open fresh air vents
Engine failure after takeoff checklist
maintain control and 88kts Mixtures FORWARD propellors FORWARD throttle FORWARD flaps RETRACT gear RETRACT identify engine with dead leg throttle INOP engine RETARD TO CONFIRM propellor INOP engine FEATHER Mixture INOP engine ICO throttle INOP engine CLOSE trim AS REQUIRED
securing inoperative engine
fuel pump OFF mags OFF cowl flap CLOSED alternator OFF electrical load REDUCE fuel selector OFF fuel pump OPERATIVE engine OFF
fuel crossfeed procedure
Fuel selector operating engine CROSSFEED
Fuel selector INOP engine OFF
fuel pumps A/R
Vtoss
68kts
Single engine service ceiling
When climb rate can’t achieve more than 50fpm
Seminole single engine climb performance ISA day
160fpm
What is the decision speed
The point where gear is taken up as there is no more remaining runway available to land in an emergency. 88kts
What is one of the best indications of a failed engine when under the hood
EGT will drop
What is the max speed for the autopilot
185kts
What is the oil pressure range
15-115 psi
What is the gyro suction range
4.5-5.2
what is the CHT range?
200-500
What is asymmetric fuel consumption
60L
Oil pressure send prop to fine or course pitch?
fine
In the event of oil pressure loss, will the prop go fine or coarse
coarse
Describe the CSU
pitch levers are really a ‘request lever’. You set an rpm, and the CSU will try and maintain that rpm. If the manifold pressure is not enough, then it won’t be able to hold that rpm.
When considering to fix the prop instead of feather, what process is involved?
CCFMOST Carby heat Cowl flaps Fuel selector, quantity, pump Oil Ts and Ps Throttles
What do we need to consider when we feather an enginr
SELFDR Secure engine Electrical load reduced LSA (ac can't hold certain altitudes with one engine) Fuel Diversion Radios
what is Va
Va is the speed at which an aircraft will stall before structural damage will occur during turbulent conditions or during rapid control surface deflection.
how do we alleviate the static vent of water
Water dump switch front left panel
Where does nitrogen pressure send the prop?
towards coarse
In the event of a loss of nitrogen pressure, where would the props move
towards fine
how many seconds does it take for a prop to feather
6 seconds approx
what can make the gear lights difficult to see sometimes?
When the nav lights are on during the day the gear lights dim, and it can be difficult to see, so turn them off to make sure that this doesn’t happen.
where is the hydraulic pump located?
In the baggage compartment underneath a panel
what degree of turn can the nose wheel achieve
30 degree
what is the turning radius of the ac
33ft
how much rpm is required to maintain full 60amps
2000rpm
What instruments are powered by the vacuum pumo
AH and DG
where is the emergency exit
left hand window
How do you operate the emergency exit?
remove left vertical thermoplastic panel, and pull the lever. The window will fall free from the fuselage.
Why are there two different stall warning detectors?
the inboard detector is used when flaps 25 or 40 are set, and the outboard is used for all other settings.
Can you test the stall warnings on the ground?
nope, squat switch inhibits it
wingspan?
38’6.6”
length
just under 28’
min oil pressure for idling?
25
min oil pressure for cruise?
55
grade of oil?
20w50 or 15w50 (ashless dispersant)
oil psi range? (normal?)
25-115 (55-95)
min and max fuel pressure?
0.5-8psi
does the seminole have a critical engine?
No, the left rotates clockwise (as viewed from the cockpit), and the right rotates anti-clockwise, and so they both have the same effect in terms of engine failure.
Describe coarse and fine pitch
Fine pitch allows a higher rpm to be used, and thus allows more power to be generated, especially at low speeds. The downside to this is that greater drag is caused.
Coarse pitch is used for cruise because the lower rpm setting means less fuel consumption and less drag, which improves fuel efficiency and range.
