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Sierra West Airlines > SA-227 Metroliner Limitations - Sierra West Airlines > Flashcards

SA-227 Metroliner Limitations - Sierra West Airlines Flashcards

1
Q

Engines

A

Garrett TPE331-11U-612G rated at 1000 SHP dry; 1100 SHP wet

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2
Q

Full Reverse Operations on Engines

A

limited to a speed below 90 KIAS.

*Subtract 1 kt for every 1 dF above 90 dF.

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3
Q

Allowed Fuel

A 
Jet A
Jet A-1
Jet B
JP-1
JP-4
JP-5
JP-8
*100LL
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4
Q

Limitations on 100LL

A

Not to exceed 250 gal per 100 hrs of operation

*total used limited to 7000 gal per engine overhaul.

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5
Q

Oil brand

A

BP2380

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6
Q

Hydraulic Brand

A

Brayco MIL-H-83282

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7
Q

Useable Fuel

A

648 gal / 4342 lbs

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8
Q

Max Fuel Imbalance

A

DOWTY - 500 lbs

McCauley - over 2000 lbs total, 200 lb imbalance; under 2000 lbs total, 400 lb imbalance.

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9
Q

When fueling how much fuel imbalance can you allow before switching to the other side?

A

125 gal

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10
Q

Can you takeoff with the “fuel transfer pump caution” annunciator(s) illuminated?

A

No. It’s prohibited.

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11
Q

CAWI (continuous alcohol water injection)

Time Limit

A

5 min

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12
Q

CAWI (continuous alcohol water injection)

Max Torque

A

110%

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13
Q

CAWI (continuous alcohol water injection)

Max EGT

A

650 dC

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14
Q

CAWI (continuous alcohol water injection)

Min OAT

A

-6 dC

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15
Q

CAWI (continuous alcohol water injection)

Approx. Freeze Point

A

-24 dC

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16
Q

CAWI (continuous alcohol water injection) is limited to what type of operations?

A

Takeoff Operations Only

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17
Q

CAWI (continuous alcohol water injection)

Max Usable Quantity

A

16 gal

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18
Q

CAWI (continuous alcohol water injection)

Min Usable Quantity

A

8 gal

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19
Q

CAWI (continuous alcohol water injection)

Dilution Ratio

A

40% Methanol / 60% Distilled Water

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20
Q

Do not use CAWI (continuous alcohol water injection) within 1 hour of temp reaching?

A

-24 dC or below

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21
Q

Temperature Limit - All Altitudes

Min for Engine Start

22
Q

Temperature Limit - All Altitudes

Max Temp

A

ISA +40 dC

23
Q

Temperature Limit - All Altitudes

Min for Engine Operation

24
Q

Starter Duty Cycle

A

First Attempt: 30 On, 60 Off
Second Attempt: 30 On, 60 Off
Third Attempt: 30 On, 15 minutes Off

25
Max Continuous Load for EACH Generator | Ground Ops and Takeoff Ops to 1000' AGL
200 amps
26
Max Continuous Load for EACH Generator | Inflight
300 amps
27
Max Continuous Load for EACH Generator | Cross Generator Start
100 amps
28
Current Limiters: | Generator to Battery Bus
325 amps
29
Current Limiters: | Battery Bus to L/R Essential Bus
225 amps
30
Current Limiters: | Battery Bus to Non-Essential Bus Circuit Breaker
150 amps
31
Voltage
28 V DC 26 V AC and 115 V AC Battery: 24 V DC
32
Temperature Limiter: | Max Altitude for Prolonged Operation
15k
33
Temperature Limiter: | RPM with Bypass Open
99-101% OR 96-98% *Do NOT takeoff with either fuel bypass valve failed open.
34
Airstart Envelope: | Max Pressure Altitude with Boost Pumps Operating
20k
35
Airstart Envelope: | Max Pressure Altitude without Boost Pumps Operating
12k
36
Airstart Envelope: | Airspeed Limits for Airstart
100-180 KIAS
37
Max EGT for Engine Start
770 dC for 1 sec
38
Max Operating Pressure Altitude
31k
39
SWA Max Operating Pressure Altitude
25k
40
Avoid Engine RPM Between
18-28%
41
Max Normal Cabin Differential Pressure
7 psi
42
Relief Valves Open At:
7.25 psi
43
Dump Valve Open At:
7.3 +/- 0.1 psi
44
Mmo
0.52 Mach
45
Wingspan
57'
46
Tail Height
17'
47
Length
59' 3''
48
Min Required for 180 Degree Turn
98'
49
Distance Between Outboard Main Tires
28'
50
The maximum operating gross weight is limited by the MOST RESTRICTIVE of what three things?
1. Maximum certified gross takeoff weights 2. Single engine climb requirements 3. Takeoff runway length requirements
51
The landing weight is restricted by what three things?
1. Max landing weight 2. Landing distance available 3. Braking energy limit

Sierra West Airlines (16 decks)

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