GOS 1.0 Flashcards
What is basic operating weight? (BOW)
The weight of the aircraft and all of its permanent equipment, plus the weight of 2 crewmembers.
(Does not include fuel or payload)
What is a common reason why the OFP and Sable BOW do not line up?
The OFP includes the weight of all planned crew and ACM’s into the BOW but Sable does the TRUE definition and only uses 2 pilots into the BOW number.
NOTE: The final ZFW and TOGW calculations must match between the OFP and Sable regardless.
Define CG
The theoretical point where the aircraft would balance if suspended at that point
Define MZFW. (maximum zero fuel weight)
Maximum weight of the aircraft before usable fuel is loaded
What is Sable?
It is the computer program that does all the weight and balance calculations.
As fuel is burned from the _________ tanks, the CG moves aft.
Center and inboard tanks (2 and 3).
As fuel is burned from tanks _______ the CG moves forward
1 and 4 (outboard tanks)
If ZFW if greater than PZFW by up to ______KGs, use the provided burn adjustment per 1,000 KGs and calculate your new fuel requirements.
10,000 KGs
If ZFW exceeds PZFW by more than _______KGs, a new (or amended) release is required.
10,000 KGs
What is a LMC for?
It is a “last minute change” and is so you can throw more weight on, or take weight off at the last minute without totally redoing the weight and balance and OFP. (Maximum change of 300 KGs)
On your OFP, you see MFPTW is greater than PTOW by 11,000 KG. What will the PTOW PLUS _____ TLR section be?
It will be PTOW PLUS 10000. Not a kilo more. Because PTOW PLUS 10000 is the limit. If it were less than 10,000, it would reflect that value.
On the OFP you see MFPTW is greater than PTOW by 1000 KGs. What would the PTOW PLUS section say?
PTOW PLUS 1000 (Because the spread is 1,000.) If the spread was 500, it would say PTOW PLUS 500. It is simply whatever the spread is, up to 10,000. If the spread is over 10,000, it will cap out at 10,000.
Normal landing data from ACARS or from the TLR has a ____% landing factor added.
15% (Buffer)
For doing a brake cooling schedule chart, you need the brakes on indicated airspeed. If this is not known, what can you use?
5-7 knots lower than approach speed.
If BTMS is working, what BTMS value do you use when doing brake cooling chart?
The hottest brake temp 10-15 minutes after the airplane comes to a complete stop.
When would EICAS message BRAKE TEMP appear?
If a brake temp reaches level 5 or more.
On a Quick Turnaround Limit chart, the goal is to find a weight limit. What if you determine your landing weight to be less than the weight limit?
If you did not exceed that limit weight, you are good. No special cooling required. If you did, follow the fine print (basically tells you to wait 70 minutes).
What is the fuel penalty for flying perishables or live cargo?
1% extra. Will be noted on the OFP
The Sable BOW is different than the OFP BOW because of ACMs. Where should you go look to verify that the BOW is accurate because of these ACMs?
On the briefing packet, go to “company NOTAMS” AKA Intams.
On there you will see BASIC CREW and it gives you the BOW for +1, through +6 extra people.
On an OFP TLR, what does a / symbol signify?
It means that specific line of data that begins with a / is planned.
On a TLR, there is a “ACARS TAKEOFF REQUEST” section that shows a range of time. What is this for? How long is this range of time?
It is the validity range for sending for performance data via ACARS. That will always be an 8 hour window.
A TLR has an OAT and a QNH limit. It is nice because the TLR flat out tells you what the validity range is. But what is the range for OAT and QNH?
OAT: Actual OAT cannot be colder than 10 degrees C under POAT
QNH: Actual QNH cannot be less than .15 in. under PQNH
On an OFP and TLR, you will see PTOW and MFPTW in XXXX format. For example, 3118. How heavy is this number?
It is 311,800 KGs. Add 2 zeros to the end of that format.
What does FDP mean?
Flight Deck Performance. It is data derived from the FMC using either ACARS or onboard FMC performance data.
What does Sable generate?
A weight and balance loadsheet form.
Who must sign the Sable weight and balance loadsheet form?
PIC
You know that an LMC cannot exceed 300 kilos. What else should you verify before accepting an LMC?
That maximum weights are not exceeded (MZFW, MTOGW, zone limits, etc.)
Also that the MAC C.G. shift is no more than .5% and within limits
Pen and ink changes must be ____
Initialed by the PIC
On preflight, you notice a crack in the crew ladder bracket. You determine it is not in the DDG. Can you take off?
No. If it’s not in the DDG, it means it is not deferrable
What additives do you add to VREF?
Autothrottle disconnected: Add 1/2 steady state + all of the gust
AT engaged: Add +5 knots
What is MEL category A?
Time interval
What is MEL category B?
3 days
What is MEL category C?
10 days
What is MEL category D?
120 days
How long is an NEF valid before it must be fixed?
120 days
When an MEL is written up, when does the timer begin regarding its category time limit?
At 0000Z after the write up (Start of the next Zulu day)