PPRuNe Forums - View Single Post - Interesting questions concerning your aircraft
Old 24th Jun 2012, 18:39
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Denti
 
Join Date: Mar 2001
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Fair enough.

Does your aircraft flight recorder include your satellite telephone communications?

No satcom yet, once installed it will be used primarily for datalink application (EFB connection to the company), no idea yet if it will support voice com and if it will be recorded on either recorder.

What units of measurement do each of your altimeters display? Inches of Mercury? Millibars? hectoPascals? Millimeters of Mercury?

We can switch between hPa and inches of mercury, previous versions of the plane had both subscales displayed.

What is a hectoPascal?

The relevant SI unit, someone supplied a link above.

Is your aircraft equipped with a Wide Area Augmented System (WAAS) Global Positioning System (GPS)?

Not with WAAS, however with two GPS sensors.

Is your aircraft certified under Part 25? or Part 23?

25.

Do you ever use reduced thrust power for takeoffs?

Nearly always, both fixed derates and assumed temperatures and any combination of both.

Who makes the choice of runways used for takeoffs and landings?

ATC, if we need another runway we request it and deal with the consequences (delay, diversion).

Who makes the choice of which instrument approach is used?

The flight crew. Well, ATC usually tells us which approach is in use, however we are free to request another one to the same runway.

What is the impact on the your aircraft systems when using a QFE altimeter setting?

QFE operation is prohibited.

Is there an impact of using a QFE altimeter setting on the Enhanced Ground Proximity System (EGPWS) orTerrain and Awareness Warning System (TAWS) on your airplane?

The EGPWS is the reason for the answer above.

What does the airplane flight manual say about Global Positioning System (GPS) sensor use in non World Geodetic System-1984 (WGS-84) countries?

No info, operation into russia is not a problem though with out current map system.

Does it direct you to disable the GPS sensors?

No.

Are you able to view the Global Positioning System (GPS) calculated altitudes on your Flight Management System (FMS) while in flight?

Probably via the ACMS, not via the normal FMC.

On what Flight Management System (FMS) page are they available to view?

None.

Have you ever compared the GPS calculated altitude to the barometric altimeters while in cruise flight at high altitudes or low altitudes?

No.

How does your meters altimeter round off altitudes? To the nearest 10 feet? 40 feet? 100 feet? 10 meters? 40 meters? 100 meters or what?

Meters are just an additional display on the PFD if switched on. The altitude tape displays feet in intervals of 20ft, meters in intervals of one meter.

When do you plan to add TCAS II version 7.1 to your aircraft?

We are currently in the process of retrofitting the whole fleet, new aircraft have it already installed by the OEM.

When do you plan to add Wide Area Augmentation System (WAAS) capability to your GPS receivers if you are not equipped with WAAS now?

No plans at all, there is no commercial or flight safety case for WAAS currently in europe. There is one for GBAS though, the majority of the fleet is equipped for that.

When do you plan to add Automatic Dependent Surveillance Broadcast (ADS-B/C) and Controller-Pilot Data Link Communications (CPDLC) if you do not have it?

ADS-B is not currently mandated, however Mode-S enhanced surveillance is and differs only by one parameter from full ADS-B out. That additional parameter is transmitted by all our aircraft, however i have no idea if ADS-B out is already certified.

CPDLC is mandatory for all new aircraft since january 1st 2011, the retrofit date is february 5th 2015 (europe). We have currently most of our fleet equipped with CPDLC and the rest is currently being retrofitted.

What is the cost of getting your aircraft equipped with Automatic Dependent Surveillance - Broadcast (ADS-B) and Automatic Dependent Surveillance -Contract (ADS-C) for your aircraft?

No idea, ADS-C isn't planned as far as i'm aware except probably the few longhaul aircraft in our fleet. Cost is something the financial department has to care about, air crew do not get this information.

What is the cost for Controller-Pilot Data Link Communications (CPDLC) for your aircraft?

Same as above, we as pilots do not know the cost. Doesn't matter anyway, its a regulatory requirement and has to be installed anyway.

What does the Enhanced Ground Proximity Warning system (EGPWS -TAWS) cost for your aircraft?

Nothing, it is standard OEM equipment, but then, the OEM probably can put a pricetag on it.

How many Satellite Based Navigation Systems (SBNS) exist or are under construction today?

Quite a few i guess. GPS and GLONASS, GALILEO for the euros and on the same frequency a chinese system, there might be a few more i do not know about.

How many Satellite Based Augmentation Systems (SBAS) exist or are under construction today?

Again, quite a few, the US use their WAAS, europeans EGNOS, others use other ones.
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